Tropical Storm Helene

Forecast Advisory 11

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922
WTNT22 KNHC 180859
TCMAT2

TROPICAL STORM HELENE FORECAST/ADVISORY NUMBER 11
NWS NATIONAL HURRICANE CENTER MIAMI FL AL072012
0900 UTC SAT AUG 18 2012

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* THE COAST OF MEXICO FROM BARRA DE NAUTLA TO LA CRUZ

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

TROPICAL STORM CENTER LOCATED NEAR 21.6N 97.0W AT 18/0900Z
POSITION ACCURATE WITHIN 20 NM

PRESENT MOVEMENT TOWARD THE NORTHWEST OR 315 DEGREES AT 6 KT

ESTIMATED MINIMUM CENTRAL PRESSURE 1007 MB
MAX SUSTAINED WINDS 35 KT WITH GUSTS TO 45 KT.
34 KT....... 0NE 30SE 30SW 0NW.
12 FT SEAS.. 0NE 30SE 30SW 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 21.6N 97.0W AT 18/0900Z
AT 18/0600Z CENTER WAS LOCATED NEAR 21.3N 96.5W

FORECAST VALID 18/1800Z 21.9N 97.6W...NEAR THE COAST
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 30SE 30SW 0NW.

FORECAST VALID 19/0600Z 22.4N 98.1W...INLAND
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 0NE 30SE 0SW 0NW.

FORECAST VALID 19/1800Z 23.1N 97.9W...POST-TROP/REMNT LOW
MAX WIND 25 KT...GUSTS 35 KT.

FORECAST VALID 20/0600Z 23.8N 97.8W...POST-TROP/REMNT LOW
MAX WIND 20 KT...GUSTS 30 KT.

FORECAST VALID 21/0600Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.6N 97.0W

NEXT ADVISORY AT 18/1500Z

$$
FORECASTER CANGIALOSI