000
AXPZ20 KNHC 182145
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2205 UTC TUE MAR 18 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.                           

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
              
NO MONSOON TROUGH IS EVIDENT. THE ITCZ EXTENDS FROM 04N82W 
07N94W 03N107W 07N120W 05N130W 03N140W. SCATTERED MODERATE 
CONVECTION WITHIN 75 NM N OF ITCZ BETWEEN 82W AND 86W. 

...DISCUSSION...  
                                              
A LARGE MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS LOCATED JUST 
NW OF THE DISCUSSION AREA NEAR 35N142W WITH THE ASSOCIATED 
SURFACE STATIONARY FRONT JUST W OF 140W. THIS SYSTEM IS FORECAST 
TO DISSIPATE OVER THE NEXT 24 HOURS. A SURFACE RIDGE COVERS THE 
REMAINDER OF THE AREA N OF 20N W OF 120W TO THE ABOVE MENTIONED 
FRONT...ANCHORED BY A 1032 MB HIGH WELL N OF THE DISCUSSION 
AREA. AN UPPER RIDGE COVERS THE AREA BETWEEN 120W-140W. SECOND 
UPPER LOW IS CENTERED NEAR 9N114W BUT DOES NOT HAVE ANY SURFACE 
REFLECTION NOR IS IT PRODUCING ANY SIGNIFICANT CONVECTION. AN 
UPPER RIDGE COVERS THE AREA E OF 110W ANCHORED OVER COSTA RICA. 
SATELLITE WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE N OF 
17N E OF 120W AND S OF 15N BETWEEN 120W-140W. 

GAP WINDS...                                                 
GULF OF PAPAGAYO...HIGH PRESSURE IS BUILDING SE AND S ACROSS THE 
GULF OF MEXICO AND THE WESTERN CARIBBEAN WITH GAP WINDS 
INCREASING EARLY WEDNESDAY TO 20 TO 25 KT WITH SEAS TO 8 FT. 
THESE CONDITIONS WILL CONTINUE THROUGH THURSDAY EVENING.

$$
PAW