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000
AXPZ20 KNHC 150236
TWDEP
TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC TUE APR 15 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
0230 UTC.
...SPECIAL FEATURE...
GULF OF TEHUANTEPEC STORM WARNING
WINDS OVER THE GULF OF TEHUANTEPEC WILL REMAIN FAIRLY LIGHT
THROUGH TUESDAY MORNING. A COLD FRONT IN THE NW 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 08.5N84W TO 06.5N98W WHERE LOW
LEVEL WINDS SUGGEST A TRANSITION TO ITCZ WHICH EXTENDS TO
06N135W TO BEYOND 04N140W. SCATTERED MODERATE ISOLATED STRONG
CONVECTION WAS NOTED WITHIN 90 NM N AND 120 NM S OF TROUGH
BETWEEN 86W AND 93W.
...DISCUSSION...
A SURFACE RIDGE EXTENDS INTO THE AREA FROM 30N132W TO 18N110W.
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
Delivered by Weather Underground Inc. Mon Apr 14 2014 10:37PM EDT
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