204 
WTNT23 KNHC 150234
TCMAT3

TROPICAL STORM HELENE FORECAST/ADVISORY NUMBER  31
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL082018
0300 UTC SAT SEP 15 2018


CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* ALL OF THE AZORES ISLANDS

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA... IN THIS CASE WITHIN
12 TO 24 HOURS.

INTERESTS IN THE IRELAND AND UNITED KINGDOM SHOULD CONSULT PRODUCTS
FROM THEIR LOCAL METEOROLOGICAL SERVICE FOR INFORMATION ABOUT
POTENTIAL IMPACTS FROM 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/.

TROPICAL STORM CENTER LOCATED NEAR 35.8N  35.8W AT 15/0300Z
POSITION ACCURATE WITHIN  20 NM

PRESENT MOVEMENT TOWARD THE NORTH-NORTHEAST OR  30 DEGREES AT  16 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  988 MB
MAX SUSTAINED WINDS  60 KT WITH GUSTS TO  75 KT.
50 KT....... 50NE  50SE   0SW   0NW.
34 KT.......140NE 140SE  70SW 120NW.
12 FT SEAS..240NE 300SE 210SW 180NW.
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 35.8N  35.8W AT 15/0300Z
AT 15/0000Z CENTER WAS LOCATED NEAR 35.1N  36.3W

FORECAST VALID 15/1200Z 38.0N  34.5W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 40NE  50SE  20SW  20NW.
34 KT...120NE 150SE  80SW 120NW.

FORECAST VALID 16/0000Z 40.3N  31.2W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 20NE  40SE   0SW   0NW.
34 KT...120NE 150SE 120SW 130NW.

FORECAST VALID 16/1200Z 42.5N  26.5W...POST-TROP/EXTRATROP
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  60SE   0SW   0NW.
34 KT...120NE 160SE 150SW 120NW.

FORECAST VALID 17/0000Z 45.0N  21.5W...POST-TROP/EXTRATROP
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE  60SE   0SW   0NW.
34 KT...140NE 160SE 160SW 140NW.

FORECAST VALID 18/0000Z 51.5N   9.0W...POST-TROP/EXTRATROP
MAX WIND  50 KT...GUSTS  60 KT.
50 KT...  0NE  50SE  10SW   0NW.
34 KT...100NE 190SE 170SW  70NW.

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 19/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 35.8N  35.8W

NEXT ADVISORY AT 15/0900Z

$$
FORECASTER AVILA