088 WTPZ21 KNHC 302043 TCMEP1 TROPICAL STORM ALVIN FORECAST/ADVISORY NUMBER 9 NWS NATIONAL HURRICANE CENTER MIAMI FL EP012025 2100 UTC FRI MAY 30 2025 TROPICAL STORM CENTER LOCATED NEAR 18.1N 109.0W AT 30/2100Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHWEST OR 335 DEGREES AT 9 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1001 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT.......120NE 100SE 60SW 80NW. 4 M SEAS....120NE 60SE 60SW 90NW. 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 18.1N 109.0W AT 30/2100Z AT 30/1800Z CENTER WAS LOCATED NEAR 17.7N 108.9W FORECAST VALID 31/0600Z 19.4N 109.3W MAX WIND 35 KT...GUSTS 45 KT. 34 KT... 90NE 70SE 30SW 50NW. FORECAST VALID 31/1800Z 20.8N 109.5W...POST-TROP/REMNT LOW MAX WIND 30 KT...GUSTS 40 KT. FORECAST VALID 01/0600Z 22.4N 109.4W...POST-TROP/REMNT LOW MAX WIND 25 KT...GUSTS 35 KT. FORECAST VALID 01/1800Z...DISSIPATED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 18.1N 109.0W NEXT ADVISORY AT 31/0300Z $$ FORECASTER HAGEN
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