000
AXPZ20 KNHC 260330
TWDEP 

TROPICAL WEATHER DISCUSSION                                  
NWS NATIONAL HURRICANE CENTER MIAMI FL                      
0405 UTC THU FEB 26 2015

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
0300 UTC.               

...SPECIAL FEATURE... 

GULF OF TEHUANTEPEC GALE WARNING... 

GALE FORCE WINDS AND SEAS REACHING NEAR 16 FT PERSIST
THROUGH THE GULF OF TEHUANTEPEC THIS EVENING. SEAS IN EXCESS OF
12 FT EXTEND UP TO 500 NM SW OF TEHUANTEPEC WITH AN ADDED
COMPONENT OF LONGER PERIOD NW SWELL. GALE FORCE WINDS WILL
CONTINUE OVER THE GULF OF TEHUANTEPEC THROUGH SUNDAY MORNING
WITH ASSOCIATED NE SWELL PROPAGATING WELL W OF THE AREA. THESE
SWELLS WILL MIX WITH A REINFORCING PUSH OF LARGE NW SWELL MOVING
THROUGH THE ENTIRE REGION TO SET UP AN AREA OF CONFUSED SEAS IN
THE 8-12 FT RANGE THROUGH SAT BETWEEN 95W-110W.
 
...INTERTROPICAL CONVERGENCE ZONE... 

THE ITCZ EXTENDS 05N87W TO 03N100W TO 04N115W TO 00N135W.
SCATTERED MODERATE CONVECTION WITHIN 60 NM S OF ITCZ BETWEEN
105W AND 115W. 

...DISCUSSION... 

N OF 15N E OF 120W...MODERATE NW WINDS CONTINUE DOWN THE LENGTH
OF THE GULF OF CALIFORNIA CURRENTLY...BETWEEN 1021 MB HIGH PRES
CENTERED WEST OF THE AREA...AND TROUGHING OVER NW MEXICO. SEAS
ARE LESS THAN 8 FT ACROSS THE GULF OF CALIFORNIA...BUT 8 TO 10
FT SEAS IN NW SWELL ARE NOTED OFF THE PACIFIC COAST OF THE BAJA
CALIFORNIA PENINSULA AND APPROACHING THE REVILLAGIGEDO ISLANDS.
THE SW WILL SUBSIDE THROUGH FRI BUT SEAS TO 8 FT WITH 16 TO 20
SECOND PERIODS WILL MOVE INTO THE APPROACHES OF THE GULF OF
CALIFORNIA TO NEAR CABO CORRIENTES BY FRI MORNING. THE SWELL
WILL DECAY BELOW 8 FT SOUTH OF 25N THROUGH SAT...JUST AS ANOTHER
PUSH OF LONGER PERIOD NW SWELL WITH 8 TO 12 FT WAVE HEIGHTS
MOVES INTO THE REGION...EVENTUALLY OVERTAKING ALL BUT THE GULF
OF CALIFORNIA BUT DECAYING TO 8 TO 9 FT BY MON.

S OF 15N E OF 110W...IN ADDITION TO THE STRONG GALE FORCE GAP
WIND EVENT OVER THE GULF OF TEHUANTEPEC...STRONG HIGH PRESSURE
BUILDING BEHIND THE COLD FRONT OVER THE WESTERN CARIBBEAN IS
SUPPORTING GAP WIND EVENTS IN THE GULFS OF PAPAGAYO AND FONSECA.
FRESH TO STRONG WINDS ARE FUNNELING INTO THE GULF OF PAPAGAYO
AND ARE EXPECTED TO INCREASE TO NEAR GALE FORCE OVERNIGHT. THESE
STRONG TO NEAR GALE WINDS WILL CONTINUE THROUGH SAT MORNING WITH
SEAS BUILDING TO NEAR 11 FT. THE NE SWELLS GENERATED FROM THIS
EVENT WILL PROPAGATE WESTWARD FROM THE REGION AND MIX WITH THE
NE SWELLS GENERATED FROM THE GULF OF TEHUANTEPEC GAP WIND EVENT.
WINDS WILL INCREASE TO 20 KT OVER AND DOWNWIND OF THE GULF OF
PANAMA FRIDAY NIGHT WITH SEAS BUILDING TO NEAR 8 FT BY SAT
MORNING.

ELSEWHERE...WEAK HIGH PRESSURE OF 1021 MB IS CENTERED OVER THE
NORTHERN WATERS NEAR 31N127W. THE PRESSURE GRADIENT BETWEEN THE
AREA OF HIGH PRESSURE AND LOWER PRESSURE IN THE VICINITY OF THE
ITCZ IS SUPPORTING MODERATE TO LOCALLY FRESH TRADEWINDS FROM 05N
TO 14N W OF 130W. THE AREA OF HIGH PRESSURE WILL CONTINUE TO
WEAKEN OVER THE NEXT 24 HOURS ENABLING A COLD FRONT TO MOVE INTO
THE NW WATERS OF THE DISCUSSION AREA. THE FRONT WILL DISSIPATE
THROUGH EARLY FRI...BUT BE ACCOMPANIED BY A NEW SET OF LARGE
LONG PERIOD NW SWELLS INTO THE NW WATERS FRIDAY WITH SEAS
BUILDING 12 TO 20 FT BY FRI MORNING OVER THE AREA N OF 20N W OF
135W. THIS NEW SET OF NW SWELLS WILL HELP TO MAINTAIN THE LARGE
AREA OF COVERAGE OF SEAS 8 FT OR GREATER OVER THE WESTERN WATERS
W OF 110W. 
 
$$
CHRISTENSEN