Issued at 2100 UTC SUN AUG 27 2023
000 WTPZ25 KNHC 272040 TCMEP5 TROPICAL STORM IRWIN FORECAST/ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL EP102023 2100 UTC SUN AUG 27 2023 NOTICE... LAND-BASED TROPICAL CYCLONE WATCHES AND WARNINGS ARE NO LONGER INCLUDED IN THE TROPICAL CYCLONE FORECAST/ADVISORY...(TCM). CURRENT LAND-BASED COASTAL WATCHES AND WARNINGS CAN BE FOUND IN THE MOST RECENTLY ISSUED TROPICAL CYCLONE PUBLIC ADVISORY...(TCP). TROPICAL STORM CENTER LOCATED NEAR 17.2N 121.3W AT 27/2100Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 295 DEGREES AT 9 KT ESTIMATED MINIMUM CENTRAL PRESSURE 998 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT....... 50NE 20SE 0SW 0NW. 12 FT SEAS.. 30NE 0SE 0SW 30NW. 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 17.2N 121.3W AT 27/2100Z AT 27/1800Z CENTER WAS LOCATED NEAR 17.0N 120.9W FORECAST VALID 28/0600Z 17.7N 122.5W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 20SE 0SW 40NW. FORECAST VALID 28/1800Z 18.4N 124.6W MAX WIND 40 KT...GUSTS 50 KT. 34 KT... 60NE 20SE 0SW 40NW. FORECAST VALID 29/0600Z 18.6N 127.2W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 10SE 10SW 60NW. FORECAST VALID 29/1800Z 18.6N 130.0W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 60NE 10SE 10SW 60NW. FORECAST VALID 30/0600Z 18.4N 132.7W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 50NE 10SE 10SW 60NW. FORECAST VALID 30/1800Z 18.4N 135.2W MAX WIND 30 KT...GUSTS 40 KT. EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM ON DAY 4 AND 125 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY OUTLOOK VALID 31/1800Z 18.8N 138.9W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 01/1800Z 19.1N 141.4W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 17.2N 121.3W NEXT ADVISORY AT 28/0300Z $$ FORECASTER ROBERTS
