Tropical Storm HERNAN
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TROPICAL STORM HERNAN FORECAST/ADVISORY NUMBER 21
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP092008
2100 UTC MON AUG 11 2008
TROPICAL STORM CENTER LOCATED NEAR 19.0N 131.2W AT 11/2100Z
POSITION ACCURATE WITHIN 20 NM
PRESENT MOVEMENT TOWARD THE WEST OR 270 DEGREES AT 8 KT
ESTIMATED MINIMUM CENTRAL PRESSURE 988 MB
MAX SUSTAINED WINDS 60 KT WITH GUSTS TO 75 KT.
50 KT....... 25NE 20SE 20SW 25NW.
34 KT....... 90NE 90SE 75SW 75NW.
12 FT SEAS..200NE 140SE 70SW 110NW.
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 19.0N 131.2W AT 11/2100Z
AT 11/1800Z CENTER WAS LOCATED NEAR 19.0N 130.7W
FORECAST VALID 12/0600Z 18.9N 132.3W
MAX WIND 55 KT...GUSTS 65 KT.
50 KT... 25NE 20SE 20SW 25NW.
34 KT... 75NE 75SE 75SW 75NW.
FORECAST VALID 12/1800Z 18.5N 133.9W
MAX WIND 45 KT...GUSTS 55 KT.
34 KT... 60NE 60SE 60SW 60NW.
FORECAST VALID 13/0600Z 18.0N 135.4W
MAX WIND 40 KT...GUSTS 50 KT.
34 KT... 40NE 40SE 40SW 40NW.
FORECAST VALID 13/1800Z 17.6N 137.2W
MAX WIND 35 KT...GUSTS 45 KT.
34 KT... 40NE 30SE 30SW 40NW.
FORECAST VALID 14/1800Z 16.5N 140.5W
MAX WIND 30 KT...GUSTS 40 KT.
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 200 NM
ON DAY 4 AND 225 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
OUTLOOK VALID 15/1800Z 16.0N 144.5W...REMNANT LOW
MAX WIND 25 KT...GUSTS 35 KT.
OUTLOOK VALID 16/1800Z 16.0N 148.5W...REMNANT LOW
MAX WIND 25 KT...GUSTS 35 KT.
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 19.0N 131.2W
NEXT ADVISORY AT 12/0300Z
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FORECASTER STEWART/PASCH
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