000
AXPZ20 KNHC 100249
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC MON MAR 10 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0215 UTC.                           

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

NO MONSOON TROUGH IS PRESENT. THE ITCZ AXIS EXTENDS FROM  
01N103W TO 06N119W...THEN RESUMES FROM 07N121W TO BEYOND 
04N140W. NO SIGNIFICANT CONVECTION IS NOTED.

...DISCUSSION...

A STATIONARY FRONT EXTENDS FROM 30N135W TO 26N140W. 1027 MB 
SURFACE HIGH PRESSURE IS NW OF THE AREA NEAR 34N144W. THE 
PRESSURE GRADIENT IS TIGHT ENOUGH BEHIND THE FRONT TO SUPPORT 
FRESH TO STRONG NE WINDS. THE FRONT WILL SLOWLY DISSIPATE INTO A 
REMNANT TROUGH BY THIS TIME TOMORROW...THEN WILL MOVE W OF THE 
AREA TUE WITH ASSOCIATED WINDS OVER THE AREA DIMINISHING TO 20 
KT OR LESS. 

A SET OF NW SWELL WITH SEAS UP TO 13 FT W OF THE FRONT COVERS 
THE NW WATERS WITH THE EDGE OF SEAS OF 8 FT OR GREATER REACHING 
TO A LINE FROM 30N124W TO 11N140W. PEAK SEAS WILL SUBSIDE TO 10 
FT BY 24 HOURS...AND TO 9 FT BY 48 HOURS AS THE SWELL GRADUALLY 
DECAYS WHILE CONTINUING TO PROPAGATE TO THE SE.

MODERATE TO FRESH TRADEWINDS ARE NOTED N OF THE ITCZ TO NEAR 
20N. THE MODERATE TO FRESH TRADES ARE EXPECTED TO CONTINUE OVER 
THIS AREA THROUGH AT LEAST TUE AFTERNOON. A SURFACE TROUGH IS 
EMBEDDED IN THE ITCZ EXTENDING FROM 12N118W TO 07N122W. 
ASSOCIATED SCATTERED MODERATE CONVECTION IS FROM 11N TO 13N 
BETWEEN 114W AND 119W. THIS TROUGH IS FORECAST TO DISSIPATE 
DURING THE NEXT 24 HOURS.

FRESH TO STRONG WINDS CONTINUE TO PREVAIL OVER THE NORTHERN  
GULF OF CALIFORNIA...ALTHOUGH THE PREVIOUS ASCAT AND ASCAT-B 
PASSES WERE CONFINED TO S OF 28N. THESE WINDS WILL DIMINISH 
TONIGHT AS HIGH PRESSURE OVER THE U.S. GREAT BASIN REGION 
WEAKENS...AND AS A SURFACE TROUGH EXTENDING FROM NW MEXICO 
ACROSS THE SOUTHERN GULF OF CALIFORNIA SHIFTS SLIGHTLY EASTWARD. 
A NICE ALTIMETER PASS SHOWED 1-3 FT SEAS IN THE GULF OF 
CALIFORNIA S OF 28N. 

GAP WINDS...WINDS WILL INCREASE TO FRESH TO STRONG IN THE GULF 
OF TEHUANTEPEC BY MON MORNING AS HIGH PRESSURE BUILDS OVER 
EASTERN MEXICO BEHIND A COLD FRONT CURRENTLY MOVING THROUGH THE 
W GULF OF MEXICO. WINDS WILL THEN DIMINISH AND BECOME LIGHT AND 
VARIABLE THROUGH TUE. MEANWHILE WINDS WILL BE PRIMARILY LIGHT 
AND VARIABLE DURING THE DAYLIGHT HOURS IN FONSECA...PAPAGAYO... 
AND PANAMA THROUGH EARLY THIS WEEK. WINDS WILL INCREASE TO 
MODERATE TO FRESH LEVELS DURING NOCTURNAL DRAINAGE FLOW LATE 
EACH NIGHT AND EARLY MORNING. SEAS WILL BE PRIMARILY 3-5 FT.

$$
LEWITSKY