473 WTNT21 KNHC 152041 TCMAT1 TROPICAL STORM FLORENCE FORECAST/ADVISORY NUMBER 66 NWS NATIONAL HURRICANE CENTER MIAMI FL AL062018 2100 UTC SAT SEP 15 2018 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED NORTH OF SURF CITY...NORTH CAROLINA. ALL STORM SURGE WARNINGS HAVE BEEN DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * SOUTH SANTEE RIVER SOUTH CAROLINA TO SURF CITY NORTH CAROLINA INTERESTS ELSEWHERE IN THE SOUTHEASTERN AND MID-ATLANTIC STATES SHOULD MONITOR THE PROGRESS OF FLORENCE DUE TO THE HEAVY RAINFALL THREAT. TROPICAL STORM CENTER LOCATED NEAR 33.6N 79.9W AT 15/2100Z POSITION ACCURATE WITHIN 10 NM PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 2 KT ESTIMATED MINIMUM CENTRAL PRESSURE 997 MB MAX SUSTAINED WINDS 40 KT WITH GUSTS TO 50 KT. 34 KT.......130NE 130SE 0SW 0NW. 12 FT SEAS..210NE 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 33.6N 79.9W AT 15/2100Z AT 15/1800Z CENTER WAS LOCATED NEAR 33.6N 79.8W FORECAST VALID 16/0600Z 33.9N 80.9W...INLAND MAX WIND 35 KT...GUSTS 45 KT. 34 KT...130NE 130SE 0SW 0NW. FORECAST VALID 16/1800Z 35.1N 82.6W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 17/0600Z 37.0N 83.2W...INLAND MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 17/1800Z 38.8N 82.1W...POST-TROP/REMNT LOW INLAND MAX WIND 20 KT...GUSTS 30 KT. FORECAST VALID 18/1800Z 41.4N 74.5W...POST-TROP/REMNT LOW INLAND MAX WIND 20 KT...GUSTS 30 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 19/1800Z 43.3N 60.8W...POST-TROP/EXTRATROP OVER WATER MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 20/1800Z 47.0N 47.0W...POST-TROP/EXTRATROP OVER WATER MAX WIND 40 KT...GUSTS 50 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 33.6N 79.9W NEXT ADVISORY AT 16/0300Z $$ FORECASTER STEWART