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Hurricane CELIA


ZCZC MIATCDEP4 ALL
TTAA00 KNHC DDHHMM
HURRICANE CELIA DISCUSSION NUMBER  24
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   EP042010
800 PM PDT THU JUN 24 2010

SATELLITE IMAGES INDICATE THAT CELIA HAS RAPIDLY INTENSIFIED DURING
THE PAST SEVERAL HOURS.  THE LAST VISIBLE IMAGES SHOW A SYMMETRIC
HURRICANE WITH AN EXPANDING OUTFLOW PATTERN...WELL-DEFINED
EYE...AND STRONG CONVECTION IN THE THE EYEWALL. SUBJECTIVE DVORAK
CLASSIFICATIONS FROM BOTH TAFB AND SAB WERE T7.0...140 KT.  THESE
DATA SUPPORT AN INITIAL INTENSITY OF 140 KT...MAKING CELIA A
CATEGORY FIVE HURRICANE.  CELIA WILL SOON PASS OVER COOLER WATERS
AND INTO A MORE STABLE AIRMASS...WHICH SHOULD CAUSE A WEAKENING OF
THE SYSTEM.  IN FACT...MOST OF THE GUIDANCE INDICATE RAPID
WEAKENING COMMENCING BEFORE THIS TIME TOMORROW.  LATER ON... GLOBAL
MODELS SUGGEST THE SHEAR WILL INCREASE NEAR THE HURRICANE...WHICH
SHOULD AID THE WEAKENING PROCESS.  GUIDANCE IS IN GOOD AGREEMENT ON
THIS SCENARIO...AND THE OFFICIAL FORECAST REFLECTS THIS LIKELIHOOD.    

THE HURRICANE HAS TURNED TOWARD THE WEST-NORTHWEST...AND IS NOW
MOVING 285/11. A SUBTROPICAL RIDGE OVER MEXICO AND THE EASTERN
PACIFIC IS EXPECTED TO REMAIN IN PLACE FOR THE NEXT DAY OR SO AND
CONTINUE TO STEER THE HURRICANE GENERALLY TO THE WEST-NORTHWEST.
GLOBAL MODELS ARE IN VERY CLOSE AGREEMENT ON THE TRACK OF CELIA
DURING THAT TIME. HOWEVER...THERE IS A LARGE UNCERTAINTY ON WHAT
HAPPENS TO THE HURRICANE IN THE EXTENDED RANGE AS THE RIDGE OVER
THE EASTERN PACIFIC IS REPLACED BY A TROUGH NEAR THE WEST COAST OF
THE UNITED STATES. THE SPREAD IN THE GUIDANCE IS QUITE LARGE AT
THAT TIME... LEADING TO A LOWER-CONFIDENCE FORECAST. THE BEST BET
AT THIS POINT IS THAT THIS PATTERN CHANGE WILL RESULT IN STEERING
CURRENTS GETTING QUITE WEAK FOR DAYS 4 AND 5... AND THE OFFICIAL
NHC FORECAST WILL SHOW LITTLE MOVEMENT OF CELIA AT THAT TIME FRAME.  

CELIA IS TIED FOR THE STRONGEST EASTERN PACIFIC HURRICANE ON RECORD
IN JUNE...WITH AVA OF 1973.
 
 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL      25/0300Z 13.1N 115.9W   140 KT
 12HR VT     25/1200Z 13.6N 117.5W   140 KT
 24HR VT     26/0000Z 14.4N 119.5W   115 KT
 36HR VT     26/1200Z 15.3N 121.1W    95 KT
 48HR VT     27/0000Z 15.8N 122.5W    75 KT
 72HR VT     28/0000Z 16.4N 124.3W    50 KT
 96HR VT     29/0000Z 16.5N 125.0W    35 KT
120HR VT     30/0000Z 16.5N 126.0W    25 KT...POST-TROP/REMNT LOW
 
$$
FORECASTER BLAKE
 
NNNN


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Page last modified: Friday, 15-Apr-2011 12:09:29 UTC