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| #1059460 (Received by flhurricane at: 4:57 AM 30.Aug.2021) TCMAT4 TROPICAL STORM IDA FORECAST/ADVISORY NUMBER 17 NWS NATIONAL HURRICANE CENTER MIAMI FL AL092021 0900 UTC MON AUG 30 2021 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE STORM SURGE WARNING HAS BEEN DISCONTINUED FROM MORGAN CITY TO GRAND ISLE...LOUISIANA. THE HURRICANE AND TROPICAL STORM WARNINGS HAVE BEEN DISCONTINUED WEST OF GRAND ISLE...LOUISIANA. THE HURRICANE WARNING HAS BEEN REPLACED WITH A TROPICAL STORM WARNING FROM GRAND ISLE TO THE MOUTH OF THE PEARL RIVER...INCLUDING LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND METROPOLITAN NEW ORLEANS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A STORM SURGE WARNING IS IN EFFECT FOR... *GRAND ISLE...LOUISIANA...TO THE ALABAMA/FLORIDA BORDER A TROPICAL STORM WARNING IS IN EFFECT FOR... * GRAND ISLE...LOUISIANA...TO THE ALABAMA/FLORIDA BORDER...INCLUDING LAKE PONTCHARTRAIN...LAKE MAUREPAS...AND METROPOLITAN NEW ORLEANS A STORM SURGE WARNING MEANS THERE IS A DANGER OF LIFE-THREATENING INUNDATION FROM RISING WATER MOVING INLAND FROM THE COASTLINE 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 TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA. TROPICAL STORM CENTER LOCATED NEAR 31.0N 90.8W AT 30/0900Z POSITION ACCURATE WITHIN 15 NM PRESENT MOVEMENT TOWARD THE NORTH OR 355 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 990 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 70 KT. 50 KT....... 40NE 40SE 0SW 0NW. 34 KT....... 70NE 130SE 40SW 0NW. 12 FT SEAS.. 0NE 180SE 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 31.0N 90.8W AT 30/0900Z AT 30/0600Z CENTER WAS LOCATED NEAR 30.6N 90.8W FORECAST VALID 30/1800Z 32.2N 90.6W...INLAND MAX WIND 30 KT...GUSTS 45 KT. FORECAST VALID 31/0600Z 33.7N 89.4W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 31/1800Z 35.1N 87.2W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 01/0600Z 36.6N 84.3W...POST-TROP/INLAND MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 01/1800Z 38.1N 80.8W...POST-TROP/INLAND MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 02/0600Z 39.0N 77.4W...POST-TROP/EXTRATROP MAX WIND 25 KT...GUSTS 35 KT. 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 03/0600Z 40.1N 71.5W...POST-TROP/EXTRATROP OVER WATER MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 04/0600Z 40.5N 67.2W...POST-TROP/EXTRATROP OVER WATER MAX WIND 30 KT...GUSTS 40 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 31.0N 90.8W INTERMEDIATE PUBLIC ADVISORY...WTNT34 KNHC/MIATCPAT4...AT 30/1200Z NEXT ADVISORY AT 30/1500Z $$ FORECASTER STEWART |
