000
WTNT22 KNHC 180231
TCMAT2
 
TROPICAL STORM HELENE FORECAST/ADVISORY NUMBER  10
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL072012
0300 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 21.0N  96.4W AT 18/0300Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE NORTHWEST OR 310 DEGREES AT   6 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1006 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 21.0N  96.4W AT 18/0300Z
AT 18/0000Z CENTER WAS LOCATED NEAR 20.8N  96.1W
 
FORECAST VALID 18/1200Z 21.7N  97.2W
MAX WIND  40 KT...GUSTS  50 KT.
34 KT... 20NE  40SE  40SW  20NW.
 
FORECAST VALID 19/0000Z 22.2N  97.8W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 30NE  30SE   0SW  20NW.
 
FORECAST VALID 19/1200Z 23.0N  98.0W...INLAND
MAX WIND  30 KT...GUSTS  40 KT.
 
FORECAST VALID 20/0000Z 24.0N  98.0W...POST-TROP/REMNT LOW
MAX WIND  25 KT...GUSTS  35 KT.
 
FORECAST VALID 21/0000Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 21.0N  96.4W
 
NEXT ADVISORY AT 18/0900Z
 
$$
FORECASTER AVILA