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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