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Tropical Storm MIRIAM Forecast Advisory Number 20

Issued at 2100 UTC WED SEP 26 2012

000
WTPZ23 KNHC 262035
TCMEP3
 
TROPICAL STORM MIRIAM FORECAST/ADVISORY NUMBER  20
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP132012
2100 UTC WED SEP 26 2012
 
THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT.
 
TROPICAL STORM CENTER LOCATED NEAR 20.8N 115.4W AT 26/2100Z
POSITION ACCURATE WITHIN  20 NM
 
PRESENT MOVEMENT TOWARD THE NORTH OR 350 DEGREES AT   6 KT
 
ESTIMATED MINIMUM CENTRAL PRESSURE  994 MB
MAX SUSTAINED WINDS  50 KT WITH GUSTS TO  60 KT.
50 KT....... 40NE  30SE  30SW  40NW.
34 KT....... 90NE  70SE  60SW  80NW.
12 FT SEAS..200NE 150SE 240SW 180NW.
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 20.8N 115.4W AT 26/2100Z
AT 26/1800Z CENTER WAS LOCATED NEAR 20.4N 115.2W
 
FORECAST VALID 27/0600Z 21.6N 115.6W
MAX WIND  45 KT...GUSTS  55 KT.
34 KT... 80NE  60SE  50SW  70NW.
 
FORECAST VALID 27/1800Z 22.4N 116.1W
MAX WIND  35 KT...GUSTS  45 KT.
34 KT... 60NE  40SE  40SW  50NW.
 
FORECAST VALID 28/0600Z 22.8N 116.5W
MAX WIND  30 KT...GUSTS  40 KT.
 
FORECAST VALID 28/1800Z 22.9N 116.9W...POST-TROP/REMNT LOW
MAX WIND  25 KT...GUSTS  35 KT.
 
FORECAST VALID 29/1800Z 22.9N 117.2W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.
 
EXTENDED OUTLOOK. NOTE...ERRORS FOR TRACK HAVE AVERAGED NEAR 150 NM
ON DAY 4 AND 200 NM ON DAY 5...AND FOR INTENSITY NEAR 20 KT EACH DAY
 
OUTLOOK VALID 30/1800Z 22.9N 117.5W...POST-TROP/REMNT LOW
MAX WIND  20 KT...GUSTS  30 KT.
 
OUTLOOK VALID 01/1800Z...DISSIPATED
 
REQUEST FOR 3 HOURLY SHIP REPORTS WITHIN 300 MILES OF 20.8N 115.4W
 
NEXT ADVISORY AT 27/0300Z
 
$$
FORECASTER KIMBERLAIN
 
 

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