000
AXPZ20 KNHC 150900
TWDEP 

TROPICAL WEATHER DISCUSSION                            
NWS NATIONAL HURRICANE CENTER MIAMI FL                          
1005 UTC WED MAY 14 2014

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC. 

...SPECIAL FEATURE... 

.GULF OF TEHUANTEPEC GALE WARNING...

A LATE SEASON GULF OF TEHUANTEPEC GALE FORCE GAP WIND EVENT IS 
UNDERWAY. THIS LATE-SEASON GALE FORCE GAP WIND EVENT IS ONE OF 
THE LATEST GULF OF TEHUANTEPEC GALES ON RECORD. IT WILL ALSO BE 
A STRONG GALE EVENT WITH WINDS PEAKING NEAR 45 KT AND SEAS 
BUILDING AS HIGH AS 19 FT WITHIN 180 NM SW OF THE COAST OF 
TEHUANTEPEC. THE GAP WINDS SHOULD DIMINISH BELOW GALE FORCE 
SATURDAY AFTERNOON AND DROP BELOW STRONG BREEZE CONDITIONS BY 
SUNDAY AFTERNOON.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

THE MONSOON TROUGH EXTENDS FROM 11N86W TO 1009 MB LOW AT 08N97W 
TO 05.5N104W WHERE LOW LEVEL WINDS SUGGEST A TRANSITION TO ITCZ 
WHICH EXTENDS TO 1010 MB LOW AT 07N125W TO BEYOND 04N140W. 
SCATTERED MODERATE CONVECTION WAS NOTED FROM 03N TO 10N BETWEEN 
84W AND 93W. SCATTERED MODERATE CONVECTION WAS NOTED WITHIN 120 
NM N AND 30 NM S OF TROUGH BETWEEN 98W AND 101W. SCATTERED 
MODERATE ISOLATED STRONG CONVECTION WAS NOTED WITHIN 90 NM N OF 
ITCZ BETWEEN 116W AND 120W. 

...DISCUSSION...                                                 

A RATHER WEAK 1022 MB HIGH IS CENTERED NORTH OF THE AREA NEAR 
35N127W WITH RIDGING EXTENDING SOUTHEASTWARD TO 26N116W. THE 
RESULTING WEAK PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER 
PRESSURE IN THE VICINITY OF THE ITCZ IS PRODUCING NE TRADEWINDS 
OF ONLY MODERATE TO LOCALLY FRESH BREEZE. THIS SHOULD CHANGE 
LITTLE OVER THE NEXT SEVERAL DAYS.
 
GULF OF CALIFORNIA...HIGH PRESSURE HAS WEAKENED OVER THE CENTRAL 
ROCKIES AND THE FRESH TO STRONG BREEZE THAT WERE FUNNELED INTO 
THE NORTHERN GULF OF CALIFORNIA HAVE DIMINISHED. AS A RESULT... 
WINDS OVER THE GULF OF CALIFORNIA HAVE DIMINISHED TO 20 KT OR 
LESS. 

GULF OF PAPAGAYO...STRONG HIGH PRESSURE BUILDING OVER THE GULF 
OF MEXICO WILL INCREASE TRADE WIND FLOW ACROSS THE SW CARIBBEAN 
BY LATE TODAY...ALLOWING A PUSH OF STRONG GAP WIND FLOW INTO THE 
GULF OF PAPAGAYO FRIDAY MORNING. THOUGH WINDS WILL BRIEFLY 
DIMINISH BELOW 25 KT DURING THE DAY AND EARLY EVENING 
FRIDAY...WINDS WILL PULSE AND STRENGTHEN FRIDAY NIGHT WITH THE 
AID OF NOCTURNAL DRAINAGE FLOW. THIS GULF OF PAPAGAYO EVENT WILL 
DIMINISH BY SUNDAY AFTERNOON.
 
$$ 
AL