000 WTNT21 KNHC 251443 TCMAT1 SUBTROPICAL STORM ALBERTO FORECAST/ADVISORY NUMBER 1 NWS NATIONAL HURRICANE CENTER MIAMI FL AL012018 1500 UTC FRI MAY 25 2018 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF MEXICO HAS ISSUED A TROPICAL STORM WATCH FOR THE EAST COAST OF THE YUCATAN PENINSULA FROM TULUM TO CABO CATOCHE. THE GOVERNMENT OF CUBA HAS ISSUED A TROPICAL STORM WATCH FOR THE WESTERN CUBAN PROVINCE OF PINAR DEL RIO. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * TULUM TO CABO CATOCHE MEXICO * CUBAN PROVINCE OF PINAR DEL RIO A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN THE NEXT 24 HOURS. INTERESTS ALONG THE CENTRAL AND EASTERN U.S. GULF COAST SHOULD MONITOR THE PROGRESS OF ALBERTO. TROPICAL STORM AND STORM SURGE WATCHES COULD BE REQUIRED FOR PORTIONS OF THIS AREA LATER TODAY OR TONIGHT. SUBTROPICAL STORM CENTER LOCATED NEAR 19.7N 86.8W AT 25/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR 20 DEGREES AT 5 KT ESTIMATED MINIMUM CENTRAL PRESSURE 1005 MB MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT. 34 KT.......100NE 100SE 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 19.7N 86.8W AT 25/1500Z AT 25/1200Z CENTER WAS LOCATED NEAR 19.4N 87.0W FORECAST VALID 26/0000Z 20.5N 86.6W MAX WIND 35 KT...GUSTS 45 KT. 34 KT...100NE 100SE 0SW 0NW. FORECAST VALID 26/1200Z 22.0N 86.2W MAX WIND 40 KT...GUSTS 50 KT. 34 KT...100NE 100SE 0SW 0NW. FORECAST VALID 27/0000Z 24.1N 85.8W MAX WIND 45 KT...GUSTS 55 KT. 34 KT...100NE 100SE 0SW 60NW. FORECAST VALID 27/1200Z 26.7N 86.1W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 50NE 50SE 0SW 0NW. 34 KT...100NE 100SE 0SW 80NW. FORECAST VALID 28/1200Z 29.3N 87.9W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 50NE 50SE 0SW 40NW. 34 KT...100NE 100SE 0SW 80NW. 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 29/1200Z 31.0N 89.1W...INLAND MAX WIND 30 KT...GUSTS 40 KT. OUTLOOK VALID 30/1200Z 33.6N 88.7W...INLAND MAX WIND 20 KT...GUSTS 30 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.7N 86.8W NEXT ADVISORY AT 25/2100Z $$ FORECASTER STEWART