000
WTNT23 KNHC 230852
TCMAT3
 
TROPICAL STORM SANDY FORECAST/ADVISORY NUMBER   4
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL182012
0900 UTC TUE OCT 23 2012
 
CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY...
 
THE GOVERNMENT OF JAMAICA HAS ISSUED A HURRICANE WATCH FOR
JAMAICA...AND HAS REPLACED THE TROPICAL STORM WATCH WITH A
TROPICAL STORM WARNING.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A HURRICANE WATCH IS IN EFFECT FOR...
* JAMAICA
 
A TROPICAL STORM WARNING IS IN EFFECT FOR...
* JAMAICA
 
A TROPICAL STORM WATCH IS IN EFFECT FOR...
* HAITI
 
A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE
WITHIN THE WATCH AREA...IN THIS CASE WITHIN 36 HOURS.
 
A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS
ARE EXPECTED WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24
TO 36 HOURS.
 
A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA...GENERALLY WITHIN 48 HOURS.
 
INTERESTS IN EASTERN CUBA AND THE BAHAMAS SHOULD MONITOR THE
PROGRESS OF SANDY.
 
TROPICAL STORM CENTER LOCATED NEAR 13.3N  78.6W AT 23/0900Z
POSITION ACCURATE WITHIN  40 NM
 
PRESENT MOVEMENT TOWARD THE NORTH OR 360 DEGREES AT   3 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  998 MB
MAX SUSTAINED WINDS  40 KT WITH GUSTS TO  50 KT.
34 KT....... 70NE  80SE   0SW   0NW.
12 FT SEAS.. 70NE  80SE   0SW  50NW.
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 13.3N  78.6W AT 23/0900Z
AT 23/0600Z CENTER WAS LOCATED NEAR 13.0N  78.7W
 
FORECAST VALID 23/1800Z 14.1N  78.2W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 30NE  40SE   0SW   0NW.
34 KT... 70NE  80SE   0SW  30NW.
 
FORECAST VALID 24/0600Z 15.6N  77.8W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 40NE  40SE  10SW  20NW.
34 KT... 80NE  80SE  30SW  50NW.
 
FORECAST VALID 24/1800Z 17.6N  77.4W
MAX WIND  70 KT...GUSTS  85 KT.
64 KT... 20NE  20SE  10SW  15NW.
50 KT... 40NE  40SE  20SW  30NW.
34 KT... 80NE  80SE  50SW  70NW.
 
FORECAST VALID 25/0600Z 19.6N  77.0W
MAX WIND  70 KT...GUSTS  85 KT.
50 KT... 40NE  40SE  30SW  30NW.
34 KT...110NE 110SE  70SW  70NW.
 
FORECAST VALID 26/0600Z 24.0N  76.0W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 80NE  80SE  30SW  60NW.
34 KT...240NE 240SE 100SW 200NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 175 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
 
OUTLOOK VALID 27/0600Z 26.8N  74.8W
MAX WIND  60 KT...GUSTS  75 KT.
 
OUTLOOK VALID 28/0600Z 30.0N  71.5W...SUBTROPICAL
MAX WIND  60 KT...GUSTS  75 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 13.3N  78.6W
 
NEXT ADVISORY AT 23/1500Z
 
$$
FORECASTER BROWN