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Subtropical Storm Alpha Public Advisory Number 1
2020-09-18 18:33:40| National Hurricane Center (Atlantic)
Issued at 430 PM GMT Fri Sep 18 2020 000 WTNT34 KNHC 181633 TCPAT4 BULLETIN Subtropical Storm Alpha Special Advisory Number 1 NWS National Hurricane Center Miami FL AL242020 430 PM GMT Fri Sep 18 2020 ...SUBTROPICAL STORM ALPHA FORMS NEAR THE COAST OF PORTUGAL... ...EXPECTED TO BE SHORT-LIVED BUT BRING WINDS AND RAIN TO PORTIONS OF PORTUGAL... SUMMARY OF 430 PM GMT...1630 UTC...INFORMATION ---------------------------------------------- LOCATION...39.9N 9.3W ABOUT 75 MI...125 KM N OF LISBON PORTUGAL MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...NE OR 35 DEGREES AT 17 MPH...28 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- There are no coastal tropical cyclone watches or warnings in effect. Interests in Portugal should monitor the progress of Alpha. Additional information on this system can be found in products from the Portuguese Institute for Sea and Atmosphere at www.ipma.pt. DISCUSSION AND OUTLOOK ---------------------- At 430 PM GMT (1630 UTC), the center of Subtropical Storm Alpha was located near latitude 39.9 North, longitude 9.3 West. The storm is moving toward the northeast near 17 mph (28 km/h), and this general motion is expected during the next day or so before dissipation. Alpha should move across the coast of west-central Portugal during the next couple of days. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts. Little change in strength is expected before landfall, with rapid weakening over land through the weekend. Alpha is a small storm. Winds of 40 mph extend outward up to 35 miles (55 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- WIND...Information on wind hazards from Alpha can be found in products from the Portuguese Institute for Sea and Atmosphere at www.ipma.pt. RAINFALL...Alpha is expected to produce 1 to 2 inches (25 to 50 mm) of rainfall, with isolated amounts of 3 inches (75 mm) over the northern portion of Portugal and into west-central Spain through Saturday morning. NEXT ADVISORY ------------- Next complete advisory at 900 PM GMT. $$ Forecaster Blake
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Subtropical Storm Alpha Forecast Advisory Number 1
2020-09-18 18:32:38| National Hurricane Center (Atlantic)
Issued at 1630 UTC FRI SEP 18 2020 000 WTNT24 KNHC 181632 TCMAT4 SUBTROPICAL STORM ALPHA SPECIAL FORECAST/ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL242020 1630 UTC FRI SEP 18 2020 THERE ARE NO COASTAL TROPICAL CYCLONE WATCHES OR WARNINGS IN EFFECT. INTERESTS IN PORTUGAL SHOULD MONITOR THE PROGRESS OF ALPHA. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN PRODUCTS FROM THE PORTUGUESE INSTITUTE FOR SEA AND ATMOSPHERE AT WWW.IPMA.PT. SUBTROPICAL STORM CENTER LOCATED NEAR 39.9N 9.3W AT 18/1630Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 35 DEGREES AT 15 KT ESTIMATED MINIMUM CENTRAL PRESSURE 999 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT....... 30NE 30SE 30SW 0NW. WINDS AND SEAS VARY GREATLY IN EACH QUADRANT. RADII IN NAUTICAL MILES ARE THE LARGEST RADII EXPECTED ANYWHERE IN THAT QUADRANT. REPEAT...CENTER LOCATED NEAR 39.9N 9.3W AT 18/1630Z AT 18/1200Z CENTER WAS LOCATED NEAR 38.9N 10.3W FORECAST VALID 19/0000Z 41.5N 7.5W...POST-TROP/INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 19/1200Z 44.2N 4.2W...POST-TROP/EXTRATROP MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 20/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 39.9N 9.3W NEXT ADVISORY AT 18/2100Z $$ FORECASTER BLAKE
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Tropical Depression Twenty-Two Public Advisory Number 4
2020-09-18 16:48:09| National Hurricane Center (Atlantic)
Issued at 1000 AM CDT Fri Sep 18 2020 000 WTNT32 KNHC 181448 TCPAT2 BULLETIN Tropical Depression Twenty-Two Advisory Number 4 NWS National Hurricane Center Miami FL AL222020 1000 AM CDT Fri Sep 18 2020 ...SLOW-MOVING DEPRESSION CLOSE TO TROPICAL STORM STRENGTH... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...23.8N 93.9W ABOUT 275 MI...445 KM ENE OF TAMPICO MEXICO ABOUT 255 MI...405 KM SE OF MOUTH OF THE RIO GRANDE MAXIMUM SUSTAINED WINDS...35 MPH...55 KM/H PRESENT MOVEMENT...NNE OR 15 DEGREES AT 7 MPH...11 KM/H MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- Interests along the western Gulf of Mexico coast should monitor the progress of the depression. DISCUSSION AND OUTLOOK ---------------------- At 1000 AM CDT (1500 UTC), the center of Tropical Depression Twenty-Two was located near latitude 23.8 North, longitude 93.9 West. The depression is moving toward the north-northeast near 7 mph (11 km/h), and this general motion is expected through early Saturday. A slow westward motion is forecast to begin late Saturday or Saturday night, and this motion will likely continue into early next week. Maximum sustained winds are near 35 mph (55 km/h) with higher gusts. Strengthening is forecast during the next few days, and the depression is expected to become a tropical storm later today. The system could be near or at hurricane strength by Sunday. The estimated minimum central pressure is 1005 mb (29.68 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Swells are expected to increase and reach the coast of Texas and the Gulf Coast of Mexico over the weekend, generated by a combination of the depression and a cold front entering the northern Gulf of Mexico. 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 400 PM CDT. $$ Forecaster Beven
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Tropical Depression Twenty-Two Forecast Advisory Number 4
2020-09-18 16:47:39| National Hurricane Center (Atlantic)
Issued at 1500 UTC FRI SEP 18 2020 000 WTNT22 KNHC 181447 TCMAT2 TROPICAL DEPRESSION TWENTY-TWO FORECAST/ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL222020 1500 UTC FRI SEP 18 2020 INTERESTS ALONG THE WESTERN GULF OF MEXICO COAST SHOULD MONITOR THE PROGRESS OF THE DEPRESSION. TROPICAL DEPRESSION CENTER LOCATED NEAR 23.8N 93.9W AT 18/1500Z POSITION ACCURATE WITHIN 40 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 15 DEGREES AT 6 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB MAX SUSTAINED WINDS 30 KT WITH GUSTS TO 40 KT. 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 23.8N 93.9W AT 18/1500Z AT 18/1200Z CENTER WAS LOCATED NEAR 23.5N 94.1W FORECAST VALID 19/0000Z 24.8N 93.6W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 80NE 40SE 30SW 30NW. FORECAST VALID 19/1200Z 25.9N 93.4W MAX WIND 45 KT...GUSTS 55 KT. 34 KT...100NE 60SE 40SW 60NW. FORECAST VALID 20/0000Z 26.3N 93.8W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 40SE 0SW 30NW. 34 KT...130NE 70SE 70SW 80NW. FORECAST VALID 20/1200Z 26.5N 94.6W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 40SE 30SW 30NW. 34 KT...140NE 90SE 80SW 100NW. FORECAST VALID 21/0000Z 26.6N 95.6W MAX WIND 65 KT...GUSTS 80 KT. 50 KT... 40NE 40SE 30SW 40NW. 34 KT...150NE 90SE 80SW 100NW. FORECAST VALID 21/1200Z 26.9N 96.2W MAX WIND 65 KT...GUSTS 80 KT. 50 KT... 50NE 40SE 30SW 50NW. 34 KT...150NE 80SE 80SW 100NW. 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 22/1200Z 27.5N 96.5W MAX WIND 60 KT...GUSTS 75 KT. OUTLOOK VALID 23/1200Z 28.5N 95.5W MAX WIND 55 KT...GUSTS 65 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 23.8N 93.9W NEXT ADVISORY AT 18/2100Z $$ FORECASTER BEVEN
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Hurricane Teddy Public Advisory Number 25
2020-09-18 16:39:40| National Hurricane Center (Atlantic)
Issued at 1100 AM AST Fri Sep 18 2020 000 WTNT35 KNHC 181439 TCPAT5 BULLETIN Hurricane Teddy Advisory Number 25 NWS National Hurricane Center Miami FL AL202020 1100 AM AST Fri Sep 18 2020 ...POWERFUL TEDDY CONTINUES TO CHURN OVER THE CENTRAL ATLANTIC... ...LARGE SWELLS ARE SPREADING ACROSS MUCH OF THE WESTERN ATLANTIC INCREASING RIP CURRENT THREAT... SUMMARY OF 1100 AM AST...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...22.1N 56.1W ABOUT 525 MI...850 KM ENE OF THE NORTHERN LEEWARD ISLANDS ABOUT 885 MI...1420 KM SE OF BERMUDA MAXIMUM SUSTAINED WINDS...130 MPH...215 KM/H PRESENT MOVEMENT...NW OR 315 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...947 MB...27.97 INCHES WATCHES AND WARNINGS -------------------- There are no coastal watches or warnings in effect. Interest in Bermuda should monitor the progress of Teddy. Watches may be required for Bermuda later today or tonight. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM AST (1500 UTC), the center of Hurricane Teddy was located near latitude 22.1 North, longitude 56.1 West. Teddy is moving toward the northwest near 12 mph (19 km/h), and this general motion is expected to continue for the next couple of days, followed by a turn toward the north by early next week. On the forecast track, Teddy will be approaching Bermuda late Sunday or Monday. Maximum sustained winds are near 130 mph (215 km/h) with higher gusts. Teddy is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some fluctuations in strength are expected during the next day or so, and a weakening trend is forecast to begin late this weekend. Hurricane-force winds extend outward up to 60 miles (95 km) from the center and tropical-storm-force winds extend outward up to 230 miles (370 km). The estimated minimum central pressure is 947 mb (27.97 inches). HAZARDS AFFECTING LAND ---------------------- Key messages for Teddy can be found in the Tropical Cyclone Discussion under AWIPS header MIATCDAT5 and WMO header WTNT45 KNHC. SURF: Large swells generated by Teddy are affecting the Lesser Antilles and the northeastern coast of South America and should spread westward to the Greater Antilles, the Bahamas, Bermuda, and the east coast of the United States by the weekend. 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. $$ Forecaster Latto
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