000
AXPZ20 KNHC 260926
TWDEP 

TROPICAL WEATHER DISCUSSION                                                                                                            
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1005 UTC WED FEB 26 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.                           

...SPECIAL FEATURE...

A STRONG COLD FRONT WILL MOVE INTO THE FORECAST AREA BY THU 
MORNING. BY THU EVENING COLD FRONT WILL EXTEND FROM 30N132W TO 
22N140W WITH WINDS TO GALE FORCE W OF FRONT AND WITHIN 90 NM E 
OF THE FRONT N OF 27N. THE FRONT WILL RAPIDLY SHIFT EASTWARD 
WITH GALE FORCE WINDS CONTINUING EAST AND WEST OF THE FRONT 
THROUGH FRI NIGHT. THE FRONT WILL USHER IN A NEW SET OF NW 
SWELLS...WITH SEAS REACHING NEAR 22 FT OVER THE FAR NW PORTION 
OF THE FORECAST AREA. 

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

MONSOON TROUGH EXTENDS FROM 09N84W TO 09N87W TO 05N92W TO 
05N100W. ITCZ EXTENDS FROM 05N100W TO 06N106W TO 04N111W TO 
03N122W TO 05N132W TO 4N140W. NO SIGNIFICANT CONVECTION IS NOTED.

...DISCUSSION...

IN THE UPPER LEVELS...A LARGE UPPER LEVEL TROUGH IS OVER THE 
WESTERN AREA WITH AXIS FROM 30N116W TO BEYOND EQ120W MOVING E. 
DIFFLUENT UPPER LEVEL WINDS E OF THE UPPER LEVEL TROUGH IS 
TRANSPORTING ABUNDANT MID TO UPPER LEVEL MOISTURE ACROSS THE N 
WATERS TO S BAJA CALIFORNIA AND N MEXICO. A LARGE UPPER LEVEL 
RIDGE IS OVER THE EASTERN AREA E OF 108W WITH STRONG SUBSIDENCE 
TO INCLUDE CENTRAL AMERICA. 
 
ON THE SURFACE...A COLD FRONT IS OVER THE NW CORNER FROM 30N130W 
TO 23N140W MOVING E AND WEAKENING. N OF 28N W OF FRONT NW WINDS 
ARE 20 TO 25 KT WITH SEAS 14 TO 16 FT. ELSEWHERE NW OF LINE FROM 
30N127W TO 19N140W WINDS ARE 20 KT OR LESS WITH SEAS 8 TO 16 FT 
PRIMARILY IN NW SWELL...HIGHEST NW. A 1019 MB HIGH IS CENTERED 
NEAR 25N119W AND IS EXPECTED TO REMAIN QUASI-STATIONARY FOR 24 
HOURS.

A REINFORCING COLD FRONT WILL FOLLOW ON THU MORNING... AS 
MENTIONED IN THE SPECIAL FEATURE SECTION...AND WILL USHER IN A 
GALE THROUGH FRI NIGHT. 

GAP WINDS...

FRESH TO STRONG WINDS ARE OVER THE GULF OF PAPAGAYO. WINDS WILL 
DIMINISH TO 20 KT OR LESS BY THIS EVENING. 

$$
FORMOSA