946 WTNT23 KNHC 161441 TCMAT3 POST-TROPICAL CYCLONE HELENE FORECAST/ADVISORY NUMBER 37 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018 1500 UTC SUN SEP 16 2018 SUMMARY OF WATCHES AND WARNINGS IN EFFECT... NONE. INTERESTS IN IRELAND AND THE UNITED KINGDOM SHOULD CONSULT PRODUCTS FROM THEIR LOCAL METEOROLOGICAL SERVICE FOR INFORMATION ABOUT POTENTIAL IMPACTS FROM POST-TROPICAL HELENE IN THOSE LOCATIONS. LOCAL FORECASTS AND WARNINGS FOR THE UK CAN BE FOUND ON THE WEBSITE OF THE UK MET OFFICE AT HTTPS... //WWW.METOFFICE.GOV.UK/. LOCAL FORECASTS AND WARNINGS FOR IRELAND CAN BE FOUND ON THE WEBSITE OF MET EIREANN AT HTTPS... //WWW.MET.IE/. POST-TROPICAL CYCLONE CENTER LOCATED NEAR 43.8N 25.7W AT 16/1500Z POSITION ACCURATE WITHIN 30 NM PRESENT MOVEMENT TOWARD THE NORTHEAST OR 55 DEGREES AT 25 KT ESTIMATED MINIMUM CENTRAL PRESSURE 989 MB MAX SUSTAINED WINDS 45 KT WITH GUSTS TO 55 KT. 34 KT.......120NE 200SE 160SW 120NW. 12 FT SEAS..150NE 270SE 330SW 240NW. 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 43.8N 25.7W AT 16/1500Z AT 16/1200Z CENTER WAS LOCATED NEAR 43.1N 27.1W FORECAST VALID 17/0000Z 45.8N 21.2W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 0NE 120SE 120SW 0NW. 34 KT...180NE 210SE 210SW 120NW. FORECAST VALID 17/1200Z 49.0N 14.8W...POST-TROP/EXTRATROP MAX WIND 50 KT...GUSTS 60 KT. 50 KT... 0NE 120SE 0SW 0NW. 34 KT...150NE 210SE 210SW 90NW. FORECAST VALID 18/0000Z 52.8N 6.2W...POST-TROP/EXTRATROP MAX WIND 40 KT...GUSTS 50 KT. 34 KT...120NE 160SE 160SW 0NW. FORECAST VALID 18/1200Z...ABSORBED REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 43.8N 25.7W THIS IS THE LAST FORECAST/ADVISORY ISSUED BY THE NATIONAL HURRICANE CENTER ON THIS SYSTEM. ADDITIONAL INFORMATION ON THIS SYSTEM CAN BE FOUND IN HIGH SEAS FORECASTS ISSUED BY METEO FRANCE...UNDER WMO HEADER FQNT50 LFPW, AND IN HIGH SEAS FORECASTS ISSUED BY THE UK MET OFFICE...UNDER WMO HEADER FQNT21 EGRR. $$ FORECASTER BROWN