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Tropical Storm Helene Forecast Advisory Number 6
2018-09-08 22:58:09| National Hurricane Center (Atlantic)
Issued at 2100 UTC SAT SEP 08 2018 777 WTNT23 KNHC 082058 TCMAT3 TROPICAL STORM HELENE FORECAST/ADVISORY NUMBER 6 NWS NATIONAL HURRICANE CENTER MIAMI FL AL082018 2100 UTC SAT SEP 08 2018 CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WATCH IS IN EFFECT FOR... * THE CABO VERDE ISLANDS OF SANTIAGO...FOGO...AND BRAVA A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE CABO VERDE ISLANDS OF SANTIAGO...FOGO...AND BRAVA A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA... IN THIS CASE WITHIN THE NEXT 24 TO 36 HOURS. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA... IN THIS CASE WITHIN THE NEXT 24 TO 36 HOURS. TROPICAL STORM CENTER LOCATED NEAR 13.6N 21.7W AT 08/2100Z POSITION ACCURATE WITHIN 20 NM PRESENT MOVEMENT TOWARD THE WEST OR 275 DEGREES AT 11 KT ESTIMATED MINIMUM CENTRAL PRESSURE 998 MB MAX SUSTAINED WINDS 50 KT WITH GUSTS TO 60 KT. 50 KT....... 20NE 0SE 0SW 0NW. 34 KT....... 50NE 30SE 50SW 50NW. 12 FT SEAS..120NE 150SE 120SW 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 13.6N 21.7W AT 08/2100Z AT 08/1800Z CENTER WAS LOCATED NEAR 13.5N 21.1W FORECAST VALID 09/0600Z 13.7N 23.5W MAX WIND 55 KT...GUSTS 65 KT. 50 KT... 20NE 0SE 0SW 20NW. 34 KT... 50NE 50SE 70SW 50NW. FORECAST VALID 09/1800Z 14.1N 26.2W MAX WIND 65 KT...GUSTS 80 KT. 64 KT... 20NE 0SE 0SW 20NW. 50 KT... 30NE 30SE 30SW 30NW. 34 KT... 70NE 70SE 70SW 70NW. FORECAST VALID 10/0600Z 14.7N 29.1W MAX WIND 75 KT...GUSTS 90 KT. 64 KT... 20NE 15SE 15SW 20NW. 50 KT... 30NE 30SE 30SW 30NW. 34 KT... 80NE 70SE 70SW 80NW. FORECAST VALID 10/1800Z 15.5N 32.0W MAX WIND 85 KT...GUSTS 105 KT. 64 KT... 25NE 20SE 15SW 20NW. 50 KT... 40NE 30SE 30SW 40NW. 34 KT... 90NE 70SE 70SW 80NW. FORECAST VALID 11/1800Z 17.5N 37.0W MAX WIND 85 KT...GUSTS 105 KT. 50 KT... 50NE 40SE 30SW 40NW. 34 KT...110NE 70SE 70SW 100NW. 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 12/1800Z 19.5N 40.5W MAX WIND 65 KT...GUSTS 80 KT. OUTLOOK VALID 13/1800Z 23.0N 42.5W MAX WIND 55 KT...GUSTS 65 KT. REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.6N 21.7W NEXT ADVISORY AT 09/0300Z $$ FORECASTER BEVEN
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