000
AXPZ20 KNHC 232126
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC THU FEB 23 2012

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.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
ITCZ AXIS ALONG OR SOUTH OF EQUATOR E OF 114W. NO MONSOON 
TROUGH. ITCZ AXIS EXTENDS FROM 06N119W TO 06N126W TO 01N140W. 
SCATTERED MODERATE CONVECTION WITHIN 60 NM S OF AXIS BETWEEN 
123W AND 128W.

...DISCUSSION...
WEAKENING HIGH PRES RIDGE EXTENDS FROM 37N137W TO NEAR 20N119W. 
ASCAT PASS AT 1835 UTC SHOWS GALE FORCE N WINDS ALONG THE COAST 
OF CALIFORNIA...WITH FRESH TO STRONG WINDS N OF 28N BETWEEN 120W 
AND 130W. SCATTEROMETER DATA ALSO SHOWS MODERATE TO FRESH NE 
TRADE WINDS FROM 08N TO 19N W OF 125W...AND N OF 20N W OF 130W.
ASCAT ALSO SHOWED SURPRISINGLY STRONG E WINDS EXTENDING W OF THE 
GULF OF PAPAGAYO TO AROUND 90W. LIGHT TO MODERATE ENE TRADE WINDS
PREVAIL OVER THE REMAINDER OF THE DISCUSSION AREA.

LARGE AREA OF NW SWELL W OF 115W IS GRADUALLY SUBSIDING...EXCEPT 
FOR AN AREA OF BUILDING SEAS ASSOCIATED WITH N SWELL GENERATED BY
GALES ALONG THE COAST OF CALIFORNIA...GENERALLY N OF 25N BETWEEN 
118W AND 130W. EXPECT MAX SEAS TO REMAIN 13-14 FT IN NORTHERN 
PORTION THROUGH FRI EVENING...THEN SUBSIDE FRI NIGHT AND SAT.

BARRING ANOTHER SURPRISE FROM SCATTEROMETER OR SHIP REPORTS... 
EXPECT WINDS TO DIMINISH BELOW 20 KT IN THE GULF OF PAPAGAYO FRI.

STRONG HIGH PRES BEHIND A COLD FRONT IN THE SW GULF OF MEXICO 
WILL INDUCE ANOTHER SHORT-DURATION GALE FORCE WIND EVENT IN THE 
GULF OF TEHUANTEPEC BY LATE SAT. WINDS WILL INCREASE TO 20-30 KT 
IN THE GULF OF TEHUANTEPEC IN ABOUT 48 HOURS.

$$
MUNDELL