000
AXPZ20 KNHC 251504
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1605 UTC TUE MAR 25 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.                           

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

ITCZ FROM 6N94W TO 3N105W TO 5N115W TO 6N140W. SCATTERED 
MODERATE TO STRONG WITHIN 90 NM S AND 50 NM N OF AXIS FROM 96W 
TO 110W. SCATTERED MODERATE ISOLATED STRONG WITHIN 150 NM N OF 
AXIS FROM 105W-109W AND WITHIN 90 NM S OF AXIS FROM 113W-115W.
  
...DISCUSSION...  

MAINLY ZONAL WESTERLY FLOW ACROSS THE AREA N OF 15N W OF 100W. A 
90-100 KT JETSTREAM ENTERS THE AREA NEAR 24N140W TO CENTRAL BAJA 
CALIFORNIA INTO NORTHERN MEXICO WHERE WINDS INCREASE TO 105W-110 
KT. IN THE DEEP TROPICS AN UPPER LEVEL RIDGE EXTENDS FROM 2N136W 
TO 11N121W. AN UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED NEAR 
2N120W. AN UPPER LEVEL ANTICYCLONIC CIRCULATION CENTERED NEAR 
4N100W WITH RIDGE EXTENDING FROM THE ANTICYCLONE EASTWARD TO 
PANAMA. UPPER LEVEL DIFFLUENCE IS ENHANCING CONVECTION FROM 3N 
TO 7N BETWEEN 85W-100W.

COLD FRONT EXTENDS FROM 32N130W TO 26N140W. A FEW LIGHT SHOWERS 
ARE WITHIN 60 NM EITHER SIDE OF THE FRONT. LARGE NW SWELL IN THE 
8-12 FT RANGE ARE W OF THE FRONT. A SURFACE TROUGH WITH AXIS 
FROM 6N82W TO 3N89W. SCATTERED TO NUMEROUS STRONG CONVECTION 
ASSOCIATED WITH THE TROUGH FROM 3N-7N BETWEEN 83W-88W.

A 1022 MB HIGH PRES IS CENTERED NEAR 26N132W. THIS HAS TIGHTENED 
THE PRES GRADIENT BETWEEN THE HIGH AND THE ITCZ RESULTING IN AN 
INCREASE IN THE TRADE WINDS FROM 10N-20N W OF 130W.

HIGH PRES BUILDING BEHIND A COLD FRONT MOVING THROUGH THE GULF 
OF MEXICO WILL TIGHTEN THE PRES GRADIENT ACROSS SOUTHERN MEXICO 
WILL RESULT IN NLY WINDS INCREASING TO 20-25 KT THROUGH THE GULF 
OF TEHUANTEPEC THIS EVENING. THE HIGH WILL MOVE E AND WINDS WILL 
DECREASE TO LESS THAN 20 KT WED EVENING.

ELY WINDS ARE FORECAST TO INCREASE TO 20-25 KT THROUGH THE GULF 
OF PAPAGAYO EARLY THU.

$$
DGS