000
AXPZ20 KNHC 140859
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 COLD FRONT OVER THE NW GULF OF MEXICO WILL MOVE INTO THE FAR 
SW GULF OF MEXICO TODAY. WINDS WILL FUNNEL THROUGH THE CHIVELA 
PASS WITH WINDS INCREASING TO NEAR GALE FORCE OVER THE GULF OF 
TEHUANTEPEC THIS AFTERNOON AND FURTHER INCREASING TO GALE FORCE 
BY THIS EVENING. THIS LATE-SEASON GALE FORCE GAP WIND EVENT WILL 
BE ONE OF THE LATEST GULF OF TEHUANTEPEC GALES ON RECORD. THIS 
WILL BE A STRONG GALE EVENT WITH WINDS REACHING NEAR 45 KT LATE 
TONIGHT INTO EARLY THU. WINDS SHOULD FINALLY DIMINISH BELOW GALE 
FORCE SATURDAY MORNING.

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

THE MONSOON TROUGH EXTENDS FROM 07N78W TO 09N106W TO 07N114W 
WHERE LOW LEVEL WINDS SUGGEST A TRANSITION TO ITCZ WHICH EXTENDS 
THROUGH 05N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION 
WAS NOTED WITHIN 60 NM N AND 150 NM S OF TROUGH BETWEEN 88W AND 
95W. SCATTERED MODERATE CONVECTION WAS NOTED WITHIN 60 NM EITHER 
SIDE OF ITCZ W OF 135W.

...DISCUSSION...                                                 

HIGH PRESSURE IS CENTERED WELL N OF THE AREA. THE WEAK PRESSURE 
GRADIENT BETWEEN THIS AREA OF HIGH PRESSURE AND LOWER PRESSURE 
IN THE VICINITY OF THE ITCZ IS ONLY CAPABLE OF SUPPORTING GENTLE 
TO MODERATE TRADEWINDS OVER THE WESTERN WATERS N OF THE ITCZ. 
THE PRESSURE GRADIENT IS EXPECTED TO REMAIN WEAK FOR THE NEXT 
COUPLE OF DAYS MAINTAINING MAINLY MODERATE TRADES OVER THIS AREA 
WITH SEAS REMAINING BELOW 8 FT. 

GULF OF CALIFORNIA...HIGH PRES OVER THE CENTRAL ROCKIES WILL 
ALLOW FRESH TO STRONG WINDS TO FUNNEL INTO THE NORTHERN GULF OF 
CALIFORNIA. THE STRONG FLOW WILL PERSIST TODAY THEN DIMINISH 
INTO THU.

$$
AL