000
AXPZ20 KNHC 142102
TWDEP 

TROPICAL WEATHER DISCUSSION                  
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
2205 UTC MON APR 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC. 

...SPECIAL FEATURE...

GULF OF TEHUANTEPEC STORM WARNING 

WINDS OVER THE GULF OF TEHUANTEPEC WILL REMAIN FAIRLY LIGHT 
THROUGH TUESDAY MORNING. A COLD FRONT MOVING OFF THE COAST OF 
TEXAS INTO THE GULF OF MEXICO WILL REACH THE BAY OF CAMPECHE 
TUE. WINDS WILL RAPIDLY INCREASING TO GALE FORCE OVER THE GULF 
OF TEHUANTEPEC TUE AFTERNOON. WINDS ASSOCIATED WITH THIS GAP 
WIND ARE EXPECTED TO REACH EITHER STRONG GALE FORCE OR EVEN 
MINIMAL STORM FORCE BY TUE EVENING. THIS IS EXPECTED TO BE A 
SHORT LIVED...BUT STRONG...GAP WIND EVENT WITH STRONG GALE FORCE 
WINDS...AND POSSIBLY A BRIEF PERIOD OF STORM FORCE 
WINDS...EXPECTED TUE NIGHT INTO WED MORNING. WINDS ARE THEN 
EXPECTED TO DIMINISH BELOW GALE FORCE BY WED AFTERNOON...AND 
DIMINISH FURTHER TO 20 KT OR LESS WED EVENING. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
 
THE MONSOON TROUGH EXTENDS FROM 09N85W TO 04.5N104W WHERE LOW 
LEVEL WINDS SUGGEST A TRANSITION TO ITCZ WHICH EXTENDS TO 
05N135W TO BEYOND 04N140W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION WAS NOTED WITHIN 120 NM S OF TROUGH BETWEEN 83W AND 
100W. 

...DISCUSSION...                                                

A SURFACE RIDGE EXTENDS INTO THE AREA FROM 30N132W TO 19N108W. 
THE PRESSURE GRADIENT BETWEEN THE RIDGE AND LOWER PRESSURE IN 
THE VICINITY OF THE ITCZ IS MAINTAINING MODERATE TO LOCALLY 
FRESH TRADES N OF THE ITCZ TO 20N AND W OF 130W. LATEST 
ALTIMETER PASS DEPICTS SEAS TO 8 FT OVER THIS AREA. THE WEAK 
RIDGE WILL CONTINUE OVER THE AREA TO MAINTAIN MODERATE TO FRESH 
TRADEWINDS WITH SEAS TO 8 FT OVER MUCH OF THIS AREA. THE RIDGE 
WILL STRENGTHEN SLIGHTLY...AND OCCASIONAL WINDS TO 25 KT WILL BE 
POSSIBLE. 

GULF OF CALIFORNIA...HIGH PRESSURE OVER THE GREAT BASIN WILL 
ALLOW FOR STRONG NW WINDS TO FUNNEL INTO THE NORTHERN GULF OF 
CALIFORNIA TONIGHT. THE AREA OF HIGH PRESSURE WILL SHIFT EAST ON 
TUESDAY WHICH WILL LOOSEN THE PRESSURE GRADIENT AND DIMINISH 
WINDS BELOW 25 KT BY TUE AFTERNOON.
 
$$ 
AL