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Hurricane Isaias Forecast Advisory Number 15
2020-07-31 22:49:07| National Hurricane Center (Atlantic)
Issued at 2100 UTC FRI JUL 31 2020 164 WTNT24 KNHC 312049 TCMAT4 HURRICANE ISAIAS FORECAST/ADVISORY NUMBER 15 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092020 2100 UTC FRI JUL 31 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... A HURRICANE WARNING IS IN EFFECT FOR THE EAST COAST OF FLORIDA FROM BOCA RATON TO THE VOLUSIA/BREVARD COUNTY LINE. A HURRICANE WATCH IS IN EFFECT FROM THE VOLUSIA/BREVARD COUNTY LINE TO THE FLAGLER/VOLUSIA COUNTY LINE AND FROM SOUTH OF BOCA RATON TO HALLENDALE BEACH. A STORM SURGE WATCH IS IN EFFECT FOR THE EAST COAST OF FLORIDA FROM JUPITER INLET TO PONTE VEDRE BEACH. A TROPICAL STORM WATCH IS IN EFFECT FROM THE FLAGLER/VOLUSIA COUNTY LINE TO PONTE VEDRE BEACH. A TROPICAL STORM WARNING IS IN EFFECT FOR LAKE OKEECHOBEE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * BOCA RATON TO THE VOLUSIA/BREVARD COUNTY LINE FLORIDA * NORTHWESTERN BAHAMAS * SOUTHEASTERN BAHAMAS * CENTRAL BAHAMAS A HURRICANE WATCH IS IN EFFECT FOR... * HALLENDALE BEACH TO SOUTH OF BOCA RATON FLORIDA * VOLUSIA-BREVARD COUNTY LINE TO THE FLAGLER/VOLUSIA COUNTY LINE A STORM SURGE WATCH IS IN EFFECT FOR... * JUPITER INLET TO PONTE VEDRE BEACH FLORIDA A TROPICAL STORM WARNING IS IN EFFECT FOR... * TURKS AND CAICOS ISLANDS * NORTH OF OCEAN REEF TO SOUTH OF BOCA RATON FLORIDA * LAKE OKEECHOBEE A TROPICAL STORM WATCH IS IN EFFECT FOR... * FLAGLER/VOLUSIA COUNTY LINE TO PONTE VEDRE BEACH FLORIDA INTERESTS ELSEWHERE ALONG THE SOUTHEAST COAST OF THE UNITED STATES SHOULD MONITOR THE PROGRESS OF ISAIAS. ADDITIONAL WATCHES OR WARNINGS MAY BE REQUIRED LATER TONIGHT AND SATURDAY. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. A WARNING IS TYPICALLY ISSUED 36 HOURS BEFORE THE ANTICIPATED FIRST OCCURRENCE OF TROPICAL-STORM-FORCE WINDS...CONDITIONS THAT MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. 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 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 TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. HURRICANE CENTER LOCATED NEAR 22.6N 75.7W AT 31/2100Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 305 DEGREES AT 13 KT ESTIMATED MINIMUM CENTRAL PRESSURE 991 MB MAX SUSTAINED WINDS 65 KT WITH GUSTS TO 80 KT. 64 KT....... 30NE 20SE 0SW 20NW. 50 KT....... 80NE 30SE 0SW 50NW. 34 KT.......150NE 70SE 30SW 130NW. 12 FT SEAS..300NE 150SE 90SW 300NW. 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 22.6N 75.7W AT 31/2100Z AT 31/1800Z CENTER WAS LOCATED NEAR 22.2N 75.2W FORECAST VALID 01/0600Z 23.9N 77.2W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 30NE 20SE 10SW 20NW. 50 KT... 70NE 40SE 20SW 50NW. 34 KT...140NE 90SE 40SW 120NW. FORECAST VALID 01/1800Z 25.4N 78.8W MAX WIND 75 KT...GUSTS 90 KT. 64 KT... 20NE 20SE 10SW 20NW. 50 KT... 60NE 40SE 20SW 40NW. 34 KT...120NE 90SE 40SW 100NW. FORECAST VALID 02/0600Z 26.8N 79.9W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 20NE 15SE 10SW 20NW. 50 KT... 50NE 30SE 20SW 40NW. 34 KT...120NE 90SE 40SW 80NW. FORECAST VALID 02/1800Z 28.3N 80.4W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 20NE 15SE 10SW 20NW. 50 KT... 50NE 30SE 20SW 40NW. 34 KT...110NE 90SE 40SW 70NW. FORECAST VALID 03/0600Z 30.0N 80.4W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 30SE 20SW 40NW. 34 KT...110NE 90SE 50SW 70NW. FORECAST VALID 03/1800Z 32.5N 79.4W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 30SE 20SW 30NW. 34 KT...110NE 90SE 50SW 60NW. 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 04/1800Z 39.0N 74.5W MAX WIND 55 KT...GUSTS 65 KT. OUTLOOK VALID 05/1800Z 45.4N 65.9W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 22.6N 75.7W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 01/0000Z NEXT ADVISORY AT 01/0300Z $$ FORECASTER STEWART
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