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Tropical Storm Sally Forecast Advisory Number 6
2020-09-13 04:33:30| National Hurricane Center (Atlantic)
Issued at 0300 UTC SUN SEP 13 2020 520 WTNT24 KNHC 130233 TCMAT4 TROPICAL STORM SALLY FORECAST/ADVISORY NUMBER 6 NWS NATIONAL HURRICANE CENTER MIAMI FL AL192020 0300 UTC SUN SEP 13 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A STORM SURGE WATCH IS IN EFFECT FOR... * MOUTH OF THE MISSISSIPPI RIVER TO THE ALABAMA/FLORIDA BORDER * LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND LAKE BORGNE * MOBILE BAY A HURRICANE WATCH IS IN EFFECT FOR... * GRAND ISLE LOUISIANA TO THE ALABAMA/FLORIDA BORDER * LAKE PONTCHARTRAIN AND LAKE MAUREPAS INCLUDING METROPOLITAN NEW ORLEANS A TROPICAL STORM WATCH IS IN EFFECT FOR... * ALABAMA/FLORIDA BORDER TO OCHLOCKONEE RIVER FLORIDA 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 WITHIN THE NEXT 48 HOURS. TROPICAL STORM CENTER LOCATED NEAR 26.3N 82.9W AT 13/0300Z POSITION ACCURATE WITHIN 35 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 285 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1003 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 0NE 70SE 0SW 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 26.3N 82.9W AT 13/0300Z AT 13/0000Z CENTER WAS LOCATED NEAR 26.0N 82.4W FORECAST VALID 13/1200Z 27.0N 84.4W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 40NE 70SE 0SW 30NW. FORECAST VALID 14/0000Z 27.7N 86.0W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 20NE 0SE 0SW 0NW. 34 KT... 80NE 90SE 20SW 80NW. FORECAST VALID 14/1200Z 28.3N 87.5W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 40NE 20SE 10SW 30NW. 34 KT... 90NE 80SE 30SW 70NW. FORECAST VALID 15/0000Z 28.8N 88.6W MAX WIND 70 KT...GUSTS 85 KT. 64 KT... 20NE 10SE 10SW 20NW. 50 KT... 40NE 30SE 20SW 30NW. 34 KT... 80NE 80SE 40SW 60NW. FORECAST VALID 15/1200Z 29.4N 89.2W MAX WIND 75 KT...GUSTS 90 KT. 50 KT... 40NE 30SE 10SW 30NW. 34 KT... 80NE 90SE 30SW 50NW. FORECAST VALID 16/0000Z 30.1N 89.5W MAX WIND 75 KT...GUSTS 90 KT. 50 KT... 40NE 40SE 20SW 30NW. 34 KT... 70NE 90SE 40SW 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 17/0000Z 31.7N 89.1W...INLAND MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 18/0000Z 33.5N 86.5W...INLAND MAX WIND 25 KT...GUSTS 35 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 26.3N 82.9W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 13/0600Z NEXT ADVISORY AT 13/0900Z $$ FORECASTER BRENNAN
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