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HURRICANE WILLA FORECAST/ADVISORY NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP242018
0300 UTC TUE OCT 23 2018

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...

NONE.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT...

A HURRICANE WARNING IS IN EFFECT FOR...
* SAN BLAS TO MAZATLAN...INCLUDING LAS ISLAS MARIAS

A TROPICAL STORM WARNING IS IN EFFECT FOR...
* PLAYA PERULA TO SAN BLAS
* NORTH OF MAZATLAN TO BAHIA TEMPEHUAYA

A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED
SOMEWHERE WITHIN THE WARNING AREA WITHIN THE NEXT 36 HOURS.
PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO
COMPLETION.

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED SOMEWHERE WITHIN THE WARNING AREA.

INTERESTS ELSEWHERE ALONG THE COASTS OF WEST-CENTRAL AND
SOUTHWESTERN MAINLAND MEXICO SHOULD MONITOR THE PROGRESS OF WILLA.

HURRICANE CENTER LOCATED NEAR 20.5N 107.2W AT 23/0300Z
POSITION ACCURATE WITHIN  15 NM

PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT   8 KT

ESTIMATED MINIMUM CENTRAL PRESSURE  937 MB
MAX SUSTAINED WINDS 125 KT WITH GUSTS TO 150 KT.
64 KT....... 30NE  30SE  20SW  25NW.
50 KT....... 50NE  50SE  40SW  50NW.
34 KT.......110NE 100SE  80SW  90NW.
12 FT SEAS..120NE 180SE 180SW 150NW.
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 20.5N 107.2W AT 23/0300Z
AT 23/0000Z CENTER WAS LOCATED NEAR 20.2N 107.3W

FORECAST VALID 23/1200Z 21.5N 106.9W
MAX WIND 115 KT...GUSTS 140 KT.
64 KT... 35NE  30SE  20SW  25NW.
50 KT... 60NE  50SE  40SW  40NW.
34 KT...110NE 100SE  70SW  80NW.

FORECAST VALID 24/0000Z 23.0N 105.8W...INLAND
MAX WIND  85 KT...GUSTS 105 KT.
64 KT... 20NE  25SE  20SW  15NW.
50 KT... 30NE  40SE  30SW  30NW.
34 KT... 60NE  80SE  60SW  70NW.

FORECAST VALID 24/1200Z 25.3N 102.7W...INLAND
MAX WIND  30 KT...GUSTS  40 KT.

FORECAST VALID 25/0000Z...DISSIPATED

REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.5N 107.2W

NEXT ADVISORY AT 23/0900Z

$$
FORECASTER BRENNAN


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