000 WTNT23 KNHC 200850 TCMAT3 POTENTIAL TROPICAL CYCLONE THREE FORECAST/ADVISORY NUMBER 3 NWS NATIONAL HURRICANE CENTER MIAMI FL AL032017 0900 UTC TUE JUN 20 2017 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... A TROPICAL STORM WARNING IS NOW IN EFFECT FROM CAMERON LOUISIANA TO INTRACOASTAL CITY. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * CAMERON TO THE MOUTH OF THE PEARL RIVER A TROPICAL STORM WATCH IS IN EFFECT FOR... * WEST OF CAMERON TO HIGH ISLAND A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN THE NEXT 24 TO 36 HOURS. A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS. INTERESTS ELSEWHERE ALONG THE U.S. GULF COAST FROM THE CENTRAL TEXAS COAST TO THE WESTERN FLORIDA PANHANDLE SHOULD MONITOR THE PROGRESS OF THIS SYSTEM. POTENTIAL TROP CYCLONE CENTER LOCATED NEAR 24.8N 90.1W AT 20/0900Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTHWEST OR 315 DEGREES AT 7 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1000 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT.......180NE 180SE 0SW 0NW. 12 FT SEAS..240NE 240SE 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 24.8N 90.1W AT 20/0900Z AT 20/0600Z CENTER WAS LOCATED NEAR 24.5N 89.9W FORECAST VALID 20/1800Z 25.7N 91.0W...SUBTROPICAL CYCLONE MAX WIND 35 KT...GUSTS 45 KT. 34 KT...180NE 180SE 0SW 0NW. FORECAST VALID 21/0600Z 26.6N 92.1W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...180NE 140SE 0SW 60NW. FORECAST VALID 21/1800Z 27.5N 93.0W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...170NE 100SE 40SW 80NW. FORECAST VALID 22/0600Z 28.9N 93.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...160NE 100SE 40SW 80NW. FORECAST VALID 23/0600Z 32.5N 93.5W...INLAND MAX WIND 25 KT...GUSTS 35 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 24/0600Z 36.5N 88.0W...POST-TROP/INLAND MAX WIND 20 KT...GUSTS 30 KT. OUTLOOK VALID 25/0600Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 24.8N 90.1W NEXT ADVISORY AT 20/1500Z $$ FORECASTER BEVEN