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#1
9th September 2018, 07:32
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Helene - Atlantic Ocean
BULLETIN
Tropical Storm Helene Intermediate Advisory Number 7A NWS National Hurricane Center Miami FL AL082018 200 AM AST Sun Sep 09 2018 ...OUTER BANDS OF HELENE BEGINNING TO AFFECT THE SOUTHERNMOST CABO VERDE ISLANDS... SUMMARY OF 200 AM AST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...13.4N 23.4W ABOUT 120 MI...190 KM SE OF THE SOUTHERNMOST CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * The Cabo Verde islands of Santiago, Fogo, and Brava A Tropical Storm Warning is in effect for... * The Cabo Verde islands of Santiago, Fogo, and Brava A Hurricane Watch means that hurricane conditions are possible within the watch area. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 200 AM AST (0600 UTC), the center of Tropical Storm Helene was located near latitude 13.4 North, longitude 23.4 West. Helene is moving toward the west near 13 mph (20 km/h), and this motion is expected to continue through today. A turn toward the west-northwest is forecast to occur by Monday. Maximum sustained winds remain near 60 mph (95 km/h) with higher gusts. Strengthening is forecast during the next 48 hours, and Helene is expected to become a hurricane later today. Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected to reach the warning area within the next few hours. Hurricane conditions are possible in the southernmost Cabo Verde Islands later today. RAINFALL: Helene is expected to produce total rain accumulations of 2 to 4 inches over the southern Cabo Verde Islands through Sunday, with isolated maximum amounts of 6 inches. This rainfall may produce life-threatening flash floods. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#2
9th September 2018, 17:36
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BULLETIN
Tropical Storm Helene Advisory Number 9 NWS National Hurricane Center Miami FL AL082018 1100 AM AST Sun Sep 09 2018 ...HELENE EXPECTED TO BECOME A HURRICANE SOON... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...13.2N 25.0W ABOUT 120 MI...190 KM SSW OF THE SOUTHERNMOST CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Watch is in effect for... * The Cabo Verde islands of Santiago, Fogo, and Brava A Tropical Storm Warning is in effect for... * The Cabo Verde islands of Santiago, Fogo, and Brava A Hurricane Watch means that hurricane conditions are possible within the watch area. A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area. For storm information specific to your area, please monitor products issued by your national meteorological service. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Helene was located near latitude 13.2 North, longitude 25.0 West. Helene is moving toward the west near 13 mph (20 km/h), and this motion is expected to continue through today. A turn toward the west-northwest is forecast to occur by Monday. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Strengthening is forecast during the next 48 hours, and Helene is expected to become a hurricane later today. Tropical-storm-force winds extend outward up to 80 miles (130 km) from the center. The estimated minimum central pressure is 997 mb (29.44 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected within portions of the warning area today. Hurricane conditions are also possible in the southernmost Cabo Verde Islands today. RAINFALL: Helene is expected to produce total rain accumulations of 2 to 4 inches over the southern Cabo Verde Islands through today, with isolated maximum amounts of 6 inches. This rainfall may produce life-threatening flash floods. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM AST. Next complete advisory at 500 PM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#3
10th September 2018, 07:41
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BULLETIN
Hurricane Helene Advisory Number 11 NWS National Hurricane Center Miami FL AL082018 1100 PM AST Sun Sep 09 2018 ...HELENE CONTINUES TO STRENGTHEN OVER THE EASTERN ATLANTIC... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...13.9N 27.2W ABOUT 195 MI...320 KM WSW OF THE SOUTHERNMOST CABO VERDE ISLANDS MAXIMUM SUSTAINED WINDS...85 MPH...140 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...984 MB...29.06 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Hurricane Helene was located near latitude 13.9 North, longitude 27.2 West. Helene is moving toward the west-northwest near 13 mph (20 km/h) and this motion is expected to continue for another couple of days. A turn to the northwest is forecast to occur on Wednesday. Maximum sustained winds have increased to near 85 mph (140 km/h) with higher gusts. Additional strengthening is expected during the next day or so, but slow weakening should begin by late Tuesday. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). The estimated minimum central pressure is 984 mb (29.06 inches). HAZARDS AFFECTING LAND ---------------------- RAINFALL: The outer bands of Helene could produce up to one inch of additional rainfall over the southernmost Cabo Verde Islands during the next few hours. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#4
10th September 2018, 22:53
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BULLETIN
Hurricane Helene Advisory Number 14 NWS National Hurricane Center Miami FL AL082018 500 PM AST Mon Sep 10 2018 ...HURRICANE HELENE FORECAST TO TURN NORTHWESTWARD OVER THE EASTERN ATLANTIC IN A DAY OR TWO... SUMMARY OF 500 PM AST...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...14.9N 31.5W ABOUT 475 MI...765 KM W OF THE SOUTHERNMOST CABO VERDE ISLANDS ABOUT 1620 MI...2605 KM S OF THE AZORES MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...WNW OR 290 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...974 MB...28.77 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 500 PM AST (2100 UTC), the eye of Hurricane Helene was located near latitude 14.9 North, longitude 31.5 West. Helene is moving toward the west-northwest near 14 mph (22 km/h). A continued west- northwestward motion with a decrease in forward speed is expected through late Tuesday, followed by a turn toward the northwest and then toward the north-northwest on Wednesday and Thursday. Maximum sustained winds remain near 105 mph (165 km/h) with higher gusts. Some strengthening is possible during the next 12 to 24 hours, but gradual weakening should begin thereafter. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km). The estimated minimum central pressure is 974 mb (28.77 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 PM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#5
11th September 2018, 08:53
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BULLETIN
Hurricane Helene Advisory Number 15 NWS National Hurricane Center Miami FL AL082018 1100 PM AST Mon Sep 10 2018 ...HELENE EXPECTED TO TURN NORTHWESTWARD OVER THE EASTERN ATLANTIC... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...15.5N 32.4W ABOUT 535 MI...860 KM W OF THE SOUTHERNMOST CABO VERDE ISLANDS ABOUT 1590 MI...2555 KM SSW OF THE AZORES MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H PRESENT MOVEMENT...WNW OR 295 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...968 MB...28.59 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Hurricane Helene was located near latitude 15.5 North, longitude 32.4 West. Helene is moving toward the west-northwest near 12 mph (19 km/h). A continued west-northwestward motion with a decrease in forward speed is expected through late Tuesday, followed by a turn toward the northwest and then north-northwest on Wednesday and Thursday. Maximum sustained winds have increased to near 105 mph (165 km/h) with higher gusts. Little change in intensity is expected during the next 12 hours, but a gradual weakening trend is expected after that time. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 115 miles (185 km). The estimated minimum central pressure is 968 mb (28.59 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#6
11th September 2018, 18:57
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BULLETIN
Hurricane Helene Advisory Number 17 NWS National Hurricane Center Miami FL AL082018 1100 AM AST Tue Sep 11 2018 ...HELENE TURNING NORTHWESTWARD OVER THE COOLER WATERS OF THE EASTERN ATLANTIC... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...16.5N 34.3W ABOUT 670 MI...1075 KM W OF THE SOUTHERNMOST CABO VERDE ISLANDS ABOUT 1550 MI...2495 KM SSW OF THE AZORES MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...966 MB...28.53 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the eye of Hurricane Helene was located near latitude 16.5 North, longitude 34.3 West. Helene is moving toward the northwest near 12 mph (19 km/h). This motion is expected to continue today with a turn toward the north-northwest and northward thereafter. Maximum sustained winds remain near 110 mph (175 km/h) with higher gusts. Gradual weakening should begin tonight, and Helene is forecast to become a tropical storm on Thursday. Hurricane-force winds extend outward up to 35 miles (55 km) from the center and tropical-storm-force winds extend outward up to 140 miles (220 km). The estimated minimum central pressure is 966 mb (28.53 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#7
12th September 2018, 07:42
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BULLETIN
Hurricane Helene Advisory Number 19 NWS National Hurricane Center Miami FL AL082018 1100 PM AST Tue Sep 11 2018 ...HELENE GRADUALLY WEAKENING... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...18.0N 35.4W ABOUT 765 MI...1230 KM WNW OF THE CABO VERDE ISLANDS ABOUT 1470 MI...2370 KM SSW OF THE AZORES MAXIMUM SUSTAINED WINDS...100 MPH...155 KM/H PRESENT MOVEMENT...NW OR 325 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...973 MB...28.74 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Hurricane Helene was located near latitude 18.0 North, longitude 35.4 West. Helene is moving toward the northwest near 10 mph (17 km/h). A turn toward the north is expected by Thursday. Helene is forecast to accelerate and turn toward the northeast by the end of the week. Maximum sustained winds are near 100 mph (155 km/h) with higher gusts. Gradual weakening is likely over the next couple of days, and Helene is expected to become a tropical storm by Thursday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 160 miles (260 km). The estimated minimum central pressure is 973 mb (28.74 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#8
12th September 2018, 14:25
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BULLETIN
Hurricane Helene Advisory Number 20 NWS National Hurricane Center Miami FL AL082018 500 AM AST Wed Sep 12 2018 ...HELENE CONTINUES TO WEAKEN... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION ---------------------------------------------- LOCATION...19.2N 35.7W ABOUT 800 MI...1290 KM WNW OF THE CABO VERDE ISLANDS ABOUT 1400 MI...2250 KM SSW OF THE AZORES MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H PRESENT MOVEMENT...NNW OR 335 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...977 MB...28.85 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Azores should monitor the progress of Helene. DISCUSSION AND OUTLOOK ---------------------- At 500 AM AST (0900 UTC), the center of Hurricane Helene was located near latitude 19.2 North, longitude 35.7 West. Helene is moving toward the north-northwest near 13 mph (20 km/h), and a turn toward the north is expected later today. A turn toward the northeast with an increase in forward speed is likely by the end of the week. Maximum sustained winds are near 90 mph (150 km/h) with higher gusts. Gradual weakening is forecast over the next couple of days, and Helene is expected to become a tropical storm on Thursday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 977 mb (28.85 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 1100 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#9
12th September 2018, 20:17
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BULLETIN
Hurricane Helene Advisory Number 21 NWS National Hurricane Center Miami FL AL082018 1100 AM AST Wed Sep 12 2018 ...HELENE FORECAST TO WEAKEN OVER THE EASTERN ATLANTIC... ...INTERESTS IN THE AZORES SHOULD MONITOR THE PROGRESS OF HELENE... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...20.3N 36.5W ABOUT 870 MI...1405 KM WNW OF THE CABO VERDE ISLANDS ABOUT 1350 MI...2170 KM SSW OF THE AZORES MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H PRESENT MOVEMENT...NNW OR 340 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...977 MB...28.85 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Azores should monitor the progress of Helene. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the eye of Hurricane Helene was located near latitude 20.3 North, longitude 36.5 West. Helene is moving toward the north-northwest near 14 mph (22 km/h). A turn toward the north and northeast with an increase in forward speed is expected during the next few days. Maximum sustained winds remain near 90 mph (150 km/h) with higher gusts. Gradual weakening is forecast over the next couple of days, and Helene is expected to become a tropical storm on Thursday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 977 mb (28.85 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#10
13th September 2018, 07:41
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BULLETIN
Hurricane Helene Advisory Number 23 NWS National Hurricane Center Miami FL AL082018 1100 PM AST Wed Sep 12 2018 ...HELENE WEAKENS SOME MORE... ...INTERESTS IN THE AZORES SHOULD MONITOR THE PROGRESS OF HELENE... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...22.4N 36.9W ABOUT 1270 MI...2045 KM SSW OF LAJES AIR BASE IN THE AZORES ABOUT 1225 MI...1975 KM SSW OF THE AZORES MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H PRESENT MOVEMENT...N OR 350 DEGREES AT 13 MPH...20 KM/H MINIMUM CENTRAL PRESSURE...983 MB...29.03 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Azores should monitor the progress of Helene. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Hurricane Helene was located near latitude 22.4 North, longitude 36.9 West. Helene is moving toward the north near 13 mph (20 km/h). A turn toward the north-northeast with an increase in forward speed is expected Thursday night followed by a turn toward the northeast over the weekend. Maximum sustained winds have decreased to near 80 mph (130 km/h) with higher gusts. Continued weakening is forecast over the next couple of days, and Helene is expected to become a tropical storm on Thursday. Hurricane-force winds extend outward up to 45 miles (75 km) from the center and tropical-storm-force winds extend outward up to 175 miles (280 km). The estimated minimum central pressure is 983 mb (29.03 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#11
13th September 2018, 20:04
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BULLETIN
Tropical Storm Helene Advisory Number 25 NWS National Hurricane Center Miami FL AL082018 1100 AM AST Thu Sep 13 2018 ...HELENE WEAKENS TO A TROPICAL STORM WHILE MOVING NORTHWARD OVER THE NORTHEASTERN ATLANTIC... ...INTERESTS IN THE AZORES SHOULD MONITOR THE PROGRESS OF HELENE... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...24.8N 37.3W ABOUT 1135 MI...1825 KM SW OF LAJES AIR BASE IN THE AZORES MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...N OR 355 DEGREES AT 14 MPH...22 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interests in the Azores should monitor the progress of Helene. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Helene was located near latitude 24.8 North, longitude 37.3 West. Helene is moving toward the north near 14 mph (22 km/h). The system should accelerate and turn toward the northeast by Sunday. On the forecast track, Helene will be approaching the Azores late Saturday or Sunday. Maximum sustained winds have dropped to near 70 mph (110 km/h) with higher gusts. Some continued weakening is forecast during the next 72 hours. Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center. The estimated minimum central pressure is 989 mb (29.21 inches). HAZARDS AFFECTING LAND ---------------------- None NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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#12
14th September 2018, 07:35
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BULLETIN
Tropical Storm Helene Intermediate Advisory Number 27A NWS National Hurricane Center Miami FL AL082018 200 AM AST Fri Sep 14 2018 ...HELENE HEADING NORTH... ...EXPECTED TO PASS NEAR THE AZORES THIS WEEKEND... SUMMARY OF 200 AM AST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...29.7N 36.2W ABOUT 815 MI...1310 KM SW OF LAJES AIR BASE IN THE AZORES MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H PRESENT MOVEMENT...N OR 10 DEGREES AT 21 MPH...33 KM/H MINIMUM CENTRAL PRESSURE...992 MB...29.30 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Watch is in effect for... * All of the Azores Islands A Tropical Storm Watch means that tropical storm conditions are possible within the watch area, generally within 48 hours. DISCUSSION AND OUTLOOK ---------------------- At 200 AM AST (0600 UTC), the center of Tropical Storm Helene was located near latitude 29.7 North, longitude 36.2 West. Helene is moving toward the north near 21 mph (33 km/h). A turn toward the northeast is expected over the weekend. On the forecast track, Helene will pass near or over the Azores late Saturday or Sunday. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Little change in strength is forecast during the next 48 hours. Tropical-storm-force winds extend outward up to 140 miles (220 km) from the center. The estimated minimum central pressure is 992 mb (29.30 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are possible within the watch area by late Saturday. RAINFALL: Helene is expected to produce total rainfall amounts of 2 to 4 inches across the Azores, with isolated amounts up to 8 inches across the western Azores. This rainfall may cause life-threatening flash flooding. SURF: Swells generated by Helene are affecting portions of the Azores. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#13
14th September 2018, 20:08
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BULLETIN
Tropical Storm Helene Intermediate Advisory Number 29A NWS National Hurricane Center Miami FL AL082018 200 PM AST Fri Sep 14 2018 ...HELENE MOVING NORTHWARD OVER THE EASTERN ATLANTIC... ...EXPECTED TO BRING GUSTY WINDS AND HEAVY RAINS TO THE AZORES THIS WEEKEND... SUMMARY OF 200 PM AST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...33.8N 37.1W ABOUT 660 MI...1060 KM WSW OF LAJES AIR BASE IN THE AZORES MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...N OR 5 DEGREES AT 23 MPH...37 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * All of the Azores Islands A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within 24 to 36 hours. Interests in the Ireland and United Kingdom should consult products from their local meteorological service for information about potential impacts from Helene in those locations. Local forecasts and warnings for the UK can be found on the website of the UK Met Office at https://www.metoffice.gov.uk/. Local forecasts and warnings for Ireland can be found on the website of Met Eireann at https://www.met.ie/. DISCUSSION AND OUTLOOK ---------------------- At 200 PM AST (1800 UTC), the center of Tropical Storm Helene was located near latitude 33.8 North, longitude 37.1 West. Helene is moving toward the north near 23 mph (37 km/h). A turn toward the north-northeast is forecast Saturday followed by a turn toward the northeast by Sunday night. On the forecast track, Helene will pass near or over the Azores late Saturday or Sunday. Satellite data indicate that maximum sustained winds remain near 70 mph (110 km/h) with higher gusts. Little change in strength is forecast during the next 24 hours. Afterward, gradual weakening is expected over the weekend as Helene makes the transition to a post-tropical extratropical cyclone. Tropical-storm-force winds extend outward up to 160 miles (260 km) from the center. The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected within the warning area by late Saturday. RAINFALL: Helene is expected to produce total rainfall amounts of 2 to 4 inches across the Azores, with isolated amounts up to 8 inches across the western Azores. This rainfall may cause life-threatening flash flooding. SURF: Swells generated by Helene are affecting portions of the Azores. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 PM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#14
15th September 2018, 07:49
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BULLETIN
Tropical Storm Helene Intermediate Advisory Number 31A NWS National Hurricane Center Miami FL AL082018 200 AM AST Sat Sep 15 2018 ...HELENE EXPECTED TO PRODUCE TROPICAL STORM FORCE WINDS AND HEAVY RAINS IN THE AZORES LATER TODAY... SUMMARY OF 200 AM AST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...36.6N 35.4W ABOUT 480 MI...775 KM WSW OF LAJES AIR BASE IN THE AZORES MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NNE OR 30 DEGREES AT 18 MPH...30 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * All of the Azores Islands A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within 12 to 24 hours. Interests in Ireland and the United Kingdom should consult products from their local meteorological service for information about potential impacts from Helene in those locations. Local forecasts and warnings for the UK can be found on the website of the UK Met Office at https://www.metoffice.gov.uk/. Local forecasts and warnings for Ireland can be found on the website of Met Eireann at https://www.met.ie/. DISCUSSION AND OUTLOOK ---------------------- At 200 AM AST (0600 UTC), the center of Tropical Storm Helene was located near latitude 36.6 North, longitude 35.4 West. Helene is moving toward the north-northeast near 18 mph (30 km/h). A turn toward the northeast is expected by tonight or Sunday morning. On the forecast track, Helene will be passing near or over the Azores tonight or on Sunday. Maximum sustained winds remain near 70 mph (110 km/h) with higher gusts. Little change in strength is forecast during the next 12 hours, but gradual weakening is expected later in the weekend. Helene is expected to transition to an extratropical cyclone as it approaches Ireland and the United Kingdom in a couple of days. Tropical-storm-force winds extend outward up to 160 miles (260 km) mainly to the east of the center. The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected within the warning area later today and tonight. RAINFALL: Helene is expected to produce total rainfall amounts of 2 to 4 inches across the Azores, with isolated amounts up to 8 inches across the western Azores. This rainfall may cause life-threatening flash flooding. SURF: Swells generated by Helene are affecting portions of the Azores. These swells are likely to cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#15
15th September 2018, 18:28
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BULLETIN
Tropical Storm Helene Advisory Number 33 NWS National Hurricane Center Miami FL AL082018 1100 AM AST Sat Sep 15 2018 ...HELENE TURNING NORTHEASTWARD TOWARD THE AZORES... ...EXPECTED TO PRODUCE TROPICAL-STORM-FORCE WINDS AND LOCALLY HEAVY RAINS... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...38.8N 34.0W ABOUT 155 MI...250 KM WSW OF FLORES ISLAND IN THE WESTERN AZORES MAXIMUM SUSTAINED WINDS...70 MPH...110 KM/H PRESENT MOVEMENT...NE OR 35 DEGREES AT 21 MPH...33 KM/H MINIMUM CENTRAL PRESSURE...988 MB...29.18 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * All of the Azores Islands A Tropical Storm Warning means that tropical storm conditions are expected somewhere within the warning area, in this case within 12 to 24 hours. Interests in Ireland and the United Kingdom should consult products from their local meteorological service for information about potential impacts from Helene in those locations. Local forecasts and warnings for the UK can be found on the website of the UK Met Office at https://www.metoffice.gov.uk/ . Local forecasts and warnings for Ireland can be found on the website of Met Eireann at https://www.met.ie/ . DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Tropical Storm Helene was located near latitude 38.8 North, longitude 34.0 West. Helene is moving toward the northeast near 21 mph (33 km/h) and this motion is expected to continue with an increase in forward speed during the next couple of days. On the forecast track, Helene should pass near or over the western Azores later today or tonight and then approach Ireland and the United Kingdom Sunday night and Monday. Maximum sustained winds are near 70 mph (110 km/h) with higher gusts. Little change in strength is forecast today, but gradual weakening is expected beginning tonight or on Sunday. Helene is expected to transition to an extratropical cyclone as it approaches Ireland and the United Kingdom. Tropical-storm-force winds extend outward up to 185 miles (295 km) from the center. The estimated minimum central pressure is 988 mb (29.18 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected within portions of the warning area within the next several hours. These conditions should continue through tonight. RAINFALL: Helene is expected to produce total rainfall amounts 1 to 2 inches across the far western Azores. Rainfall amounts of 1 to 2 inches are expected across western Ireland and Scotland. SURF: Swells generated by Helene are affecting portions of the Azores. These swells are likely to continue for another couple of days and could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next intermediate advisory at 200 PM AST. Next complete advisory at 500 PM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#16
16th September 2018, 07:42
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BULLETIN
Tropical Storm Helene Advisory Number 35 NWS National Hurricane Center Miami FL AL082018 1100 PM AST Sat Sep 15 2018 ...THE TROPICAL STORM WARNING FOR THE AZORES ISLANDS HAS BEEN DISCONTINUED... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...41.2N 30.1W ABOUT 195 MI...315 KM NNW OF FAIAL ISLAND IN THE CENTRAL AZORES MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NE OR 50 DEGREES AT 25 MPH...41 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The government of Portugal has discontinued the Tropical Storm Warnings for all of the Azores Islands. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: None. Interests in Ireland and the United Kingdom should consult products from their local meteorological service for information about potential impacts from Helene in those locations. Local forecasts and warnings for the UK can be found on the website of the UK Met Office at https://www.metoffice.gov.uk/ . Local forecasts and warnings for Ireland can be found on the website of Met Eireann at https://www.met.ie/ . DISCUSSION AND OUTLOOK ---------------------- At 1100 PM AST (0300 UTC), the center of Tropical Storm Helene was located near latitude 41.2 North, longitude 30.1 West. Helene is moving toward the northeast near 25 mph (41 km/h), and this motion is expected to continue with an increase in forward speed during the next couple of days. On the forecast track, Helene should move away from the Azores overnight and then approach Ireland and the United Kingdom Sunday night and Monday. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Some weakening is forecast, and Helene is expected to be an extratropical cyclone when it reaches Ireland and the United Kingdom. Tropical-storm-force winds extend outward up to 185 miles (295 km) from the center. The Meteorological Service of Portugal reported that a wind gust of 78 mph (126 km/h) occurred in Flores Island when Helene passed to the north of that island. The estimated minimum central pressure is 989 mb (29.21 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Winds should continue to abate in the Azores. morning. SURF: Swells generated by Helene are affecting portions of the Azores. These swells are likely to continue for another couple of days and could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- Next complete advisory at 500 AM AST. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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#17
16th September 2018, 16:49
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Final Warning
BULLETIN
Post-Tropical Cyclone Helene Advisory Number 37 NWS National Hurricane Center Miami FL AL082018 1100 AM AST Sun Sep 16 2018 ...HELENE NOW A POST-TROPICAL CYCLONE... ...THIS IS THE LAST ADVISORY... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...43.8N 25.7W ABOUT 405 MI...655 KM N OF THE AZORES MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NE OR 55 DEGREES AT 29 MPH...46 KM/H MINIMUM CENTRAL PRESSURE...989 MB...29.21 INCHES WATCHES AND WARNINGS -------------------- SUMMARY OF WATCHES AND WARNINGS IN EFFECT: None. Interests in Ireland and the United Kingdom should consult products from their local meteorological service for information about potential impacts from Post-Tropical Helene in those locations. Local forecasts and warnings for the UK can be found on the website of the UK Met Office at https://www.metoffice.gov.uk/. Local forecasts and warnings for Ireland can be found on the website of Met Eireann at https://www.met.ie/. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Post-Tropical Cyclone Helene was located near latitude 43.8 North, longitude 25.7 West. The post-tropical cyclone is moving toward the northeast near 29 mph (46 km/h), and this motion is expected to continue with an increase in forward speed during the next 24 hours. On the forecast track, the post-tropical cyclone will approach Ireland and the United Kingdom on Monday. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Some slight strengthening is possible today. Some weakening is expected by Monday, and the system is forecast to be absorbed by another low pressure area by early Tuesday. Tropical-storm-force winds extend outward up to 230 miles (370 km) from the center. The estimated minimum central pressure is 989 mb (29.21 inches). HAZARDS AFFECTING LAND ---------------------- Information on rainfall and wind forecasts for Ireland can be found in products issued by Met Eireann at www.met.ie and for the United Kingdom in products issued by the United Kingdom Met Office at www.metoffice.gov/uk. SURF: Swells generated by Helene are affecting portions of the Azores. These swells are likely to continue for another day or so and could cause life-threatening surf and rip current conditions. Please consult products from your local weather office. NEXT ADVISORY ------------- This is the last public advisory issued by the National Hurricane Center on this system. Additional information on this system can be found in High Seas Forecasts issued by Meteo France under WMO header FQNT50 LFPW and available on the web at: http://www.meteofrance.com/prevision...arine/bulletin. Additional information can also be found in High Seas Forecast issued by the UK Met Office under WMO header FQNT21 EGRR and on the web at: http://www.metoffice.gov.uk/public/w...ine-high-seas/. https://www.nhc.noaa.gov/storm_graph...png/054223.png
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David |
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