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Eastern Pacific Tropical Weather Discussion



000
AXPZ20 KNHC 260326
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
0405 UTC FRI DEC 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
THE MONSOON TROUGH EXTENDS FROM 07N78W TO 05N95W. THE ITCZ 
EXTENDS FROM 05N95W TO 06N125W TO 05N135W TO 06N140W. SCATTERED 
MODERATE CONVECTION IS WITHIN 150 NM EITHER SIDE OF A LINE FROM 
12N103W TO 04N114W.

...DISCUSSION...                                                 

1033 MB HIGH CENTERED N OF THE AREA NEAR 42N139W EXTENDS A RIDGE 
ACROSS THE NORTHERN WATERS. A COLD FRONT PUSHING SOUTHWARD 
EXTENDS FROM THE NORTHERN GULF OF CALIFORNIA NEAR 31N113W TO 
26N125W TO 27N130W THEN STATIONARY TO 30N140W. FRESH TO STRONG 
NORTHERLY WINDS ARE INDICATED N OF THE FRONT BASED ON RECENT 
SCATTEROMETER DATA. THE FRONT WILL PUSH S ACROSS THE CENTRAL 
BAJA CALIFORNIA PENINSULA FRI WHILE DISSIPATING...AND BE 
DISSIPATED BY SAT. SHORT PERIOD 10-14 FT N SWELL WILL SWEEP N OF 
27N BETWEEN 116W-127W TONIGHT INTO FRI.

TRADE WINDS IN THE TROPICAL E PACIFIC W OF 120W REMAIN LIMITED 
TO 15-20 KT OR LESS. A TIGHTENING PRES GRADIENT BETWEEN 
DEVELOPING LOW PRES NE OF HAWAII AND THE PERSISTENT RIDGE TO THE 
NORTH WILL SUPPORT FRESH TO STRONG SE WINDS ACROSS THE FAR NW 
PORTION OF THE DISCUSSION AREA...N OF 22N W OF 135W THE NEXT 
SEVERAL DAYS...WITH SOME POTENTIAL FOR WINDS TO NEAR GALE FORCE 
BY LATE SAT. 

GULF OF TEHUANTEPEC...ANOTHER 12 HOURS REMAIN UNTIL NORTHERLY 
FLOW IS EXPECTED TO BECOME 20 KT OR LESS. SEAS HAVE SUBSIDED TO 
8 FT FROM AN EARLIER MORNING/AFTERNOON MAXIMUM DURING THE EVENT 
WITH AN AREA OF REMAINING NE SWELL IN EXCESS OF 8 FT PROPAGATING 
SOUTHWESTWARD AWAY FROM THE GULF REGION AND REACHING FROM 06N TO 
13N BETWEEN 99W AND 107W FRI LATE. 

GULF OF PAPAGAYO...HIGH PRES BUILDING OVER THE NW CARIBBEAN WILL 
SUPPORT FRESH TO STRONG GAP WINDS IN THE GULF OF PAPAGAYO 
OVERNIGHT INTO FRI. LOCAL DRAINAGE EFFECTS WILL ENHANCE GAP 
WINDS DURING THE LATE NIGHT AND EARLY MORNING HOURS...WITH MAX 
WINDS EXPECTED TO REACH 30 KT OVERNIGHT AND GENERATE A PLUME OF 
8-11 FT SEAS DOWNSTREAM FROM THE SOURCE REGION FRI MORNING... 
WITH 8-9 FT SWELL REACHING TO 101W SAT. A WEAKER DIURNAL PULSE 
IS EXPECTED LATE FRI NIGHT.

GULF OF CALIFORNIA...A STRENGTHENING PRES GRADIENT FRI INTO 
EARLY SAT IS EXPECTED TO GENERATE ANOTHER ROUND OF FRESH TO 
STRONG NORTHERLY WINDS ACROSS THE NORTHERN PORTION OF THE GULF 
OF CALIFORNIA SAT INTO SAT NIGHT.

$$
HUFFMAN



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Page last modified: Friday, 26-Dec-2014 03:26:53 UTC