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| #1013555 (Received by flhurricane at: 10:54 PM 23.Aug.2020) TCMAT4 TROPICAL STORM MARCO FORECAST/ADVISORY NUMBER 15 NWS NATIONAL HURRICANE CENTER MIAMI FL AL142020 0300 UTC MON AUG 24 2020 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE HURRICANE WATCH FROM INTRACOASTAL CITY TO WEST OF MORGAN CITY HAS BEEN CANCELED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A STORM SURGE WARNING IS IN EFFECT FOR.... * MORGAN CITY LOUISIANA TO OCEAN SPRINGS MISSISSIPPI * LAKE BORGNE A HURRICANE WARNING IS IN EFFECT FOR... * MORGAN CITY LOUISIANA TO THE MOUTH OF THE PEARL RIVER A STORM SURGE WATCH IS IN EFFECT FOR... * SABINE PASS TO MORGAN CITY LOUISIANA * OCEAN SPRINGS MISSISSIPPI TO THE MISSISSIPPI/ALABAMA BORDER * LAKE PONTCHARTRAIN AND LAKE MAUREPAS A HURRICANE WATCH IS IN EFFECT FOR... * LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND METROPOLITAN NEW ORLEANS A TROPICAL STORM WARNING IS IN EFFECT FOR... * MOUTH OF THE PEARL RIVER TO THE MISSISSIPPI/ALABAMA BORDER * LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND METROPOLITAN NEW ORLEANS * CAMERON TO WEST OF MORGAN CITY A TROPICAL STORM WATCH IS IN EFFECT FOR... * MISSISSIPPI/ALABAMA BORDER TO THE ALABAMA/FLORIDA BORDER 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. 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 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 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. TROPICAL STORM CENTER LOCATED NEAR 26.8N 87.6W AT 24/0300Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 345 DEGREES AT 10 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT. 50 KT....... 30NE 30SE 0SW 20NW. 34 KT....... 60NE 50SE 20SW 50NW. 12 FT SEAS.. 90NE 75SE 75SW 75NW. 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 26.8N 87.6W AT 24/0300Z AT 24/0000Z CENTER WAS LOCATED NEAR 26.4N 87.6W FORECAST VALID 24/1200Z 28.0N 88.7W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 30NE 30SE 0SW 20NW. 34 KT... 60NE 50SE 20SW 50NW. FORECAST VALID 25/0000Z 29.0N 90.2W MAX WIND 60 KT...GUSTS 75 KT. 50 KT... 20NE 20SE 0SW 20NW. 34 KT... 50NE 40SE 20SW 40NW. FORECAST VALID 25/1200Z 29.6N 92.0W...INLAND MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 30NE 30SE 0SW 20NW. FORECAST VALID 26/0000Z 29.8N 93.6W...INLAND MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 26/1200Z 29.7N 94.9W...POST-TROP/INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 27/0000Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 26.8N 87.6W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 24/0600Z NEXT ADVISORY AT 24/0900Z $$ FORECASTER ZELINSKY |