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Hurricane Irma Forecast Advisory Number 45
2017-09-10 10:58:42| National Hurricane Center (Atlantic)
Issued at 0900 UTC SUN SEP 10 2017 000 WTNT21 KNHC 100858 TCMAT1 HURRICANE IRMA FORECAST/ADVISORY NUMBER 45 NWS NATIONAL HURRICANE CENTER MIAMI FL AL112017 0900 UTC SUN SEP 10 2017 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF THE BAHAMAS HAS REPLACED THE HURRICANE WARNING FOR THE NORTHWESTERN BAHAMAS WITH A TROPICAL STORM WATCH FOR THE NORTHWESTERN BAHAMAS ISLANDS OF BIMINI AND GRAND BAHAMA. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A STORM SURGE WARNING IS IN EFFECT FOR... * SOUTH SANTEE RIVER SOUTHWARD TO JUPITER INLET * NORTH MIAMI BEACH SOUTHWARD AROUND THE FLORIDA PENINSULA TO THE OCHLOCKONEE RIVER * FLORIDA KEYS * TAMPA BAY A HURRICANE WARNING IS IN EFFECT FOR... * FERNANDINA BEACH SOUTHWARD AROUND THE FLORIDA PENINSULA TO INDIAN PASS * FLORIDA KEYS * LAKE OKEECHOBEE * FLORIDA BAY * CUBAN PROVINCES OF CIEGO DE AVILA...SANCTI SPIRITUS...VILLA CLARA...MATANZAS...AND LA HABANA A HURRICANE WATCH IS IN EFFECT FOR... * NORTH OF FERNANDINA BEACH TO EDISTO BEACH A TROPICAL STORM WARNING IS IN EFFECT FOR... * WEST OF INDIAN PASS TO THE OKALOOSA/WALTON COUNTY LINE * NORTH OF FERNANDINA BEACH TO SOUTH SANTEE RIVER A TROPICAL STORM WATCH IS IN EFFECT FOR... * BIMINI AND GRAND BAHAMA A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING INUNDATION...FROM RISING WATER MOVING INLAND FROM THE COASTLINE... DURING THE NEXT 36 HOURS IN THE INDICATED LOCATIONS. FOR A DEPICTION OF AREAS AT RISK...PLEASE SEE THE NATIONAL WEATHER SERVICE STORM SURGE WATCH/WARNING GRAPHIC...AVAILABLE AT HURRICANES.GOV. THIS IS A LIFE-THREATENING SITUATION. PERSONS LOCATED WITHIN THESE AREAS SHOULD TAKE ALL NECESSARY ACTIONS TO PROTECT LIFE AND PROPERTY FROM RISING WATER AND THE POTENTIAL FOR OTHER DANGEROUS CONDITIONS. PROMPTLY FOLLOW EVACUATION AND OTHER INSTRUCTIONS FROM LOCAL OFFICIALS. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. 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 WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS ELSEWHERE IN CUBA AND THE SOUTHEASTERN UNITED STATES SHOULD MONITOR THE PROGRESS OF IRMA. HURRICANE CENTER LOCATED NEAR 24.1N 81.5W AT 10/0900Z POSITION ACCURATE WITHIN 10 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 325 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 928 MB EYE DIAMETER 20 NM MAX SUSTAINED WINDS 115 KT WITH GUSTS TO 140 KT. 64 KT....... 70NE 50SE 30SW 50NW. 50 KT.......110NE 110SE 70SW 100NW. 34 KT.......190NE 170SE 140SW 190NW. 12 FT SEAS..420NE 150SE 120SW 180NW. 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 24.1N 81.5W AT 10/0900Z AT 10/0600Z CENTER WAS LOCATED NEAR 23.7N 81.3W FORECAST VALID 10/1800Z 25.4N 82.0W MAX WIND 115 KT...GUSTS 140 KT. 64 KT... 70NE 60SE 40SW 60NW. 50 KT...110NE 110SE 80SW 100NW. 34 KT...220NE 200SE 140SW 220NW. FORECAST VALID 11/0600Z 27.8N 82.8W MAX WIND 100 KT...GUSTS 120 KT. 64 KT... 50NE 60SE 50SW 60NW. 50 KT...110NE 120SE 90SW 100NW. 34 KT...300NE 230SE 160SW 250NW. FORECAST VALID 11/1800Z 30.5N 84.1W...INLAND MAX WIND 75 KT...GUSTS 90 KT. 64 KT... 35NE 40SE 30SW 35NW. 50 KT... 70NE 80SE 70SW 50NW. 34 KT...290NE 210SE 140SW 130NW. FORECAST VALID 12/0600Z 32.7N 85.8W...INLAND MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 60SE 30SW 60NW. FORECAST VALID 13/0600Z 35.5N 89.0W...POST-TROP/INLAND MAX WIND 25 KT...GUSTS 35 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 14/0600Z 37.5N 88.0W...POST-TROP/INLAND MAX WIND 20 KT...GUSTS 30 KT. OUTLOOK VALID 15/0600Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 24.1N 81.5W NEXT ADVISORY AT 10/1500Z $$ FORECASTER BEVEN
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