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Hurricane Ida Forecast Advisory Number 5
2021-08-27 17:17:15| National Hurricane Center (Atlantic)
Issued at 1500 UTC FRI AUG 27 2021 382 WTNT24 KNHC 271516 CCA TCMAT4 TROPICAL STORM IDA FORECAST/ADVISORY NUMBER 5...CORRECTED NWS NATIONAL HURRICANE CENTER MIAMI FL AL092021 1500 UTC FRI AUG 27 2021 CORRECTED TO ADD 64-KT WIND RADII AT THE 12-HOUR FORECAST POINT CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF CUBA HAS REPLACE THE TROPICAL STORM WARNING WITH A HURRICANE WARNING FOR THE ISLE OF YOUTH...AND THE CUBAN PROVINCES OF PINAR DEL RIO AND ARTEMISA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * CUBAN PROVINCES OF PINAR DEL RIO AND ARTEMISA...AND THE ISLE OF YOUTH A STORM SURGE WATCH IS IN EFFECT FOR... * SABINE PASS TO ALABAMA/FLORIDA BORDER * VERMILION BAY...LAKE BORGNE...LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND MOBILE BAY A HURRICANE WATCH IS IN EFFECT FOR... * CAMERON...LOUISIANA TO THE MISSISSIPPI/ALABAMA BORDER * LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND METROPOLITAN NEW ORLEANS A TROPICAL STORM WARNING IS IN EFFECT FOR... * LITTLE CAYMAN AND CAYMAN BRAC * CUBAN PROVINCES OF MATANZAS...MAYABEQUE...AND HAVANA A TROPICAL STORM WATCH IS IN EFFECT FOR... * MISSISSIPPI/ALABAMA BORDER TO THE ALABAMA/FLORIDA BORDER. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 12 HOURS. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A STORM SURGE WATCH MEANS THERE IS A POSSIBILITY OF LIFE- THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE COASTLINE...IN THE INDICATED LOCATIONS DURING THE NEXT 48 HOURS. FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT HURRICANES.GOV. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. A WATCH IS TYPICALLY ISSUED 48 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS ELSEWHERE IN CENTRAL AND WESTERN CUBA AND ELSEWHERE ALONG THE NORTHERN U.S. GULF COAST SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. HURRICANE WARNINGS WILL LIKELY BE REQUIRED FOR PORTIONS OF THE NORTHERN GULF COAST LATER TODAY. INTERESTS IN THE DRY TORTUGAS SHOULD ALSO MONITOR THE PROGRESS OF IDA. TROPICAL STORM CENTER LOCATED NEAR 20.7N 82.1W AT 27/1500Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 320 DEGREES AT 13 KT ESTIMATED MINIMUM CENTRAL PRESSURE 996 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 30NE 0SE 0SW 0NW. 34 KT....... 80NE 60SE 0SW 60NW. 12 FT SEAS.. 75NE 75SE 30SW 15NW. 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 20.7N 82.1W AT 27/1500Z AT 27/1200Z CENTER WAS LOCATED NEAR 20.3N 81.7W FORECAST VALID 28/0000Z 22.2N 83.7W...INLAND MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 15NE 0SE 0SW 0NW. 50 KT... 30NE 0SE 0SW 30NW. 34 KT... 90NE 80SE 40SW 80NW. FORECAST VALID 28/1200Z 24.0N 85.8W...OVER WATER MAX WIND 75 KT...GUSTS 90 KT. 64 KT... 20NE 15SE 0SW 15NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT...100NE 80SE 50SW 90NW. FORECAST VALID 29/0000Z 25.9N 87.8W MAX WIND 90 KT...GUSTS 110 KT. 64 KT... 25NE 20SE 15SW 20NW. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...110NE 90SE 60SW 100NW. FORECAST VALID 29/1200Z 27.6N 89.7W MAX WIND 105 KT...GUSTS 130 KT. 64 KT... 30NE 20SE 20SW 20NW. 50 KT... 50NE 40SE 40SW 40NW. 34 KT...120NE 110SE 70SW 100NW. FORECAST VALID 30/0000Z 29.0N 90.8W MAX WIND 105 KT...GUSTS 130 KT. 50 KT... 50NE 50SE 40SW 40NW. 34 KT...110NE 110SE 70SW 90NW. FORECAST VALID 30/1200Z 30.3N 91.3W...INLAND MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 30NE 30SE 0SW 20NW. 34 KT... 70NE 90SE 60SW 50NW. 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 31/1200Z 33.3N 90.2W...INLAND MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 01/1200Z 35.2N 87.1W...POST-TROP/REMNT LOW MAX WIND 20 KT...GUSTS 30 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.7N 82.1W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 27/1800Z NEXT ADVISORY AT 27/2100Z $$ FORECASTER BROWN
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