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Summary for Tropical Storm Helene (AT3/AL082018)
2018-09-15 16:34:03| National Hurricane Center (Atlantic)
...HELENE TURNING NORTHEASTWARD TOWARD THE AZORES... ...EXPECTED TO PRODUCE TROPICAL-STORM-FORCE WINDS AND LOCALLY HEAVY RAINS... As of 11:00 AM AST Sat Sep 15 the center of Helene was located near 38.8, -34.0 with movement NE at 21 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 70 mph.
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Tropical Storm Helene Public Advisory Number 33
2018-09-15 16:34:03| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Sat Sep 15 2018 945 WTNT33 KNHC 151434 TCPAT3 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. $$ Forecaster Beven
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Tropical Storm Helene Forecast Advisory Number 33
2018-09-15 16:33:33| National Hurricane Center (Atlantic)
Issued at 1500 UTC SAT SEP 15 2018 563 WTNT23 KNHC 151433 TCMAT3 TROPICAL STORM HELENE FORECAST/ADVISORY NUMBER 33 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018 1500 UTC SAT SEP 15 2018 CHANGES IN WATCHES AND WARNINGS 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/ . TROPICAL STORM CENTER LOCATED NEAR 38.8N 34.0W AT 15/1500Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 18 KT ESTIMATED MINIMUM CENTRAL PRESSURE 988 MB MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT. 50 KT....... 50NE 50SE 0SW 0NW. 34 KT.......140NE 160SE 70SW 120NW. 12 FT SEAS..240NE 300SE 210SW 240NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 38.8N 34.0W AT 15/1500Z AT 15/1200Z CENTER WAS LOCATED NEAR 38.4N 34.7W FORECAST VALID 16/0000Z 40.8N 31.4W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 50NE 60SE 20SW 20NW. 34 KT...120NE 160SE 80SW 120NW. FORECAST VALID 16/1200Z 43.0N 27.2W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 50SE 40SW 30NW. 34 KT...120NE 160SE 120SW 120NW. FORECAST VALID 17/0000Z 45.5N 21.6W...POST-TROP/EXTRATROP MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 30NE 60SE 60SW 30NW. 34 KT...130NE 160SE 150SW 120NW. FORECAST VALID 17/1200Z 49.0N 15.0W...POST-TROP/EXTRATROP MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 30NE 60SE 60SW 0NW. 34 KT...140NE 160SE 160SW 120NW. FORECAST VALID 18/1200Z 59.0N 1.5W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 0NE 40SE 0SW 0NW. 34 KT...140NE 180SE 180SW 80NW. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 175 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 19/1200Z...ABSORBED BY EXTRATROPICAL LOW REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 38.8N 34.0W NEXT ADVISORY AT 15/2100Z $$ FORECASTER BEVEN
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Tropical Storm Helene Graphics
2018-09-15 13:38:49| National Hurricane Center (Atlantic)
5-Day Uncertainty Track last updated Sat, 15 Sep 2018 11:38:49 GMT Wind Speed Probabilities last updated Sat, 15 Sep 2018 09:28:25 GMT
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Summary for Tropical Storm Helene (AT3/AL082018)
2018-09-15 13:36:35| National Hurricane Center (Atlantic)
...HELENE CONTINUES TO APPROACH THE AZORES... ...EXPECTED TO PRODUCE TROPICAL-STORM-FORCE WINDS AND HEAVY RAINS... As of 8:00 AM AST Sat Sep 15 the center of Helene was located near 38.5, -34.4 with movement NNE at 22 mph. The minimum central pressure was 988 mb with maximum sustained winds of about 70 mph.
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