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HURRICANE IRWIN FORECAST/ADVISORY NUMBER  12
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP102017
0900 UTC TUE JUL 25 2017
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
 
HURRICANE CENTER LOCATED NEAR 15.5N 118.7W AT 25/0900Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST-NORTHWEST OR 300 DEGREES AT   4 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  991 MB
MAX SUSTAINED WINDS  65 KT WITH GUSTS TO  80 KT.
64 KT....... 15NE   0SE   0SW  15NW.
50 KT....... 30NE  20SE   0SW  30NW.
34 KT....... 70NE  40SE  30SW  40NW.
12 FT SEAS.. 75NE  60SE  60SW  75NW.
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 15.5N 118.7W AT 25/0900Z
AT 25/0600Z CENTER WAS LOCATED NEAR 15.4N 118.4W
 
FORECAST VALID 25/1800Z 15.3N 119.4W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 15NE   0SE   0SW  15NW.
50 KT... 30NE  20SE  20SW  30NW.
34 KT... 80NE  50SE  40SW  50NW.
 
FORECAST VALID 26/0600Z 15.0N 120.5W
MAX WIND  65 KT...GUSTS  80 KT.
64 KT... 20NE  15SE  15SW  20NW.
50 KT... 40NE  30SE  30SW  40NW.
34 KT... 80NE  50SE  50SW  60NW.
 
FORECAST VALID 26/1800Z 14.6N 121.4W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 40NE  30SE  30SW  40NW.
34 KT... 80NE  60SE  50SW  70NW.
 
FORECAST VALID 27/0600Z 14.3N 122.2W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 40NE  30SE  30SW  40NW.
34 KT... 80NE  60SE  50SW  70NW.
 
FORECAST VALID 28/0600Z 14.0N 123.0W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 40NE  30SE  30SW  40NW.
34 KT... 80NE  60SE  50SW  70NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 100 NM
ON DAY 4 AND 150 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 29/0600Z 16.0N 122.5W
MAX WIND  55 KT...GUSTS  65 KT.
 
OUTLOOK VALID 30/0600Z 20.0N 123.0W
MAX WIND  50 KT...GUSTS  60 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 15.5N 118.7W
 
NEXT ADVISORY AT 25/1500Z
 
$$
FORECASTER BEVEN
 
 
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