000
WTNT21 KNHC 301448
TCMAT1
 
TROPICAL STORM IRMA FORECAST/ADVISORY NUMBER   1
NWS NATIONAL HURRICANE CENTER MIAMI FL       AL112017
1500 UTC WED AUG 30 2017
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
 
TROPICAL STORM CENTER LOCATED NEAR 16.4N  30.3W AT 30/1500Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE WEST OR 280 DEGREES AT  11 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE 1004 MB
MAX SUSTAINED WINDS  45 KT WITH GUSTS TO  55 KT.
34 KT....... 20NE   0SE   0SW  30NW.
12 FT SEAS.. 20NE   0SE   0SW  30NW.
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 16.4N  30.3W AT 30/1500Z
AT 30/1200Z CENTER WAS LOCATED NEAR 16.4N  29.8W
 
FORECAST VALID 31/0000Z 16.7N  31.9W
MAX WIND  50 KT...GUSTS  60 KT.
50 KT... 20NE   0SE   0SW   0NW.
34 KT... 40NE  20SE   0SW  40NW.
 
FORECAST VALID 31/1200Z 17.3N  33.8W
MAX WIND  55 KT...GUSTS  65 KT.
50 KT... 30NE   0SE   0SW  30NW.
34 KT... 60NE  40SE  20SW  60NW.
 
FORECAST VALID 01/0000Z 17.9N  35.7W
MAX WIND  60 KT...GUSTS  75 KT.
50 KT... 30NE  20SE   0SW  30NW.
34 KT... 60NE  40SE  30SW  60NW.
 
FORECAST VALID 01/1200Z 18.2N  37.6W
MAX WIND  65 KT...GUSTS  80 KT.
50 KT... 30NE  20SE   0SW  30NW.
34 KT... 70NE  40SE  30SW  60NW.
 
FORECAST VALID 02/1200Z 18.7N  41.9W
MAX WIND  70 KT...GUSTS  85 KT.
50 KT... 40NE  20SE  10SW  30NW.
34 KT... 80NE  40SE  30SW  60NW.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 15 KT EACH DAY
 
OUTLOOK VALID 03/1200Z 17.7N  46.5W
MAX WIND  75 KT...GUSTS  90 KT.
 
OUTLOOK VALID 04/1200Z 17.0N  51.0W
MAX WIND  80 KT...GUSTS 100 KT.
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 16.4N  30.3W
 
NEXT ADVISORY AT 30/2100Z
 
$$
FORECASTER BLAKE