179 WTNT23 KNHC 132044 TCMAT3 TROPICAL STORM HELENE FORECAST/ADVISORY NUMBER 26 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018 2100 UTC THU SEP 13 2018 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... THE GOVERNMENT OF PORTUGAL HAS ISSUED A TROPICAL STORM WATCH FOR ALL OF THE AZORES ISLANDS. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * ALL OF THE AZORES ISLANDS A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA... GENERALLY WITHIN 48 HOURS. TROPICAL STORM CENTER LOCATED NEAR 26.3N 37.0W AT 13/2100Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE NORTH OR 5 DEGREES AT 18 KT ESTIMATED MINIMUM CENTRAL PRESSURE 993 MB MAX SUSTAINED WINDS 55 KT WITH GUSTS TO 65 KT. 50 KT....... 60NE 40SE 0SW 40NW. 34 KT.......120NE 90SE 60SW 90NW. 12 FT SEAS..270NE 240SE 240SW 300NW. 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 26.3N 37.0W AT 13/2100Z AT 13/1800Z CENTER WAS LOCATED NEAR 25.4N 37.1W FORECAST VALID 14/0600Z 28.8N 36.7W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 60NE 40SE 0SW 40NW. 34 KT...120NE 90SE 60SW 90NW. FORECAST VALID 14/1800Z 32.3N 35.8W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 60NE 60SE 0SW 30NW. 34 KT...120NE 120SE 60SW 60NW. FORECAST VALID 15/0600Z 35.5N 34.2W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 60NE 60SE 0SW 30NW. 34 KT...120NE 120SE 60SW 60NW. FORECAST VALID 15/1800Z 37.9N 31.7W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 40SE 0SW 30NW. 34 KT...120NE 120SE 90SW 90NW. FORECAST VALID 16/1800Z 40.6N 24.4W MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 40NE 40SE 40SW 0NW. 34 KT...120NE 120SE 120SW 90NW. 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 17/1800Z 44.0N 17.5W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. OUTLOOK VALID 18/1800Z 51.0N 7.5W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 26.3N 37.0W NEXT ADVISORY AT 14/0300Z $$ FORECASTER LANDSEA