000
AXPZ20 KNHC 181522
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1530 UTC.                           

...SPECIAL FEATURE... 
                                        
THE GALE WARNING CURRENTLY IN EFFECT FOR THE GULF OF TEHUANTEPEC 
HAS N TO NE WINDS OF 30 TO 35 KT WITH SEAS 9 TO 12 FT AND IS 
FORECAST TO EXPIRE IN THE AFTERNOON AS THE TIGHT PRESSURE 
GRADIENT OVER SOUTHEASTERN MEXICO WEAKENS. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
              
NO MONSOON TROUGH IS EVIDENT. THE ITCZ EXTENDS FROM 05N94W TO 
02N109W TO 04N114W 03N130W TO 03N140W. SCATTERED MODERATE 
CONVECTION IS LOCATED WITHIN 60 NM OF 02N106W. 

...DISCUSSION...  
                                              
A LARGE MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS LOCATED JUST 
NW OF THE DISCUSSION AREA NEAR 34.5N144W AND IS FORECAST TO MOVE 
ENE OVER THE TWO DAYS. THE FLOW ALOFT IS NEARLY ZONAL FROM 22N 
TO 32N E OF 140W INTO MEXICO WITH CIRRUS CLOUDS LOCATED N OF 20N 
W OF 130W. WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE N OF 
20N E OF 130W. TO THE SOUTH AN ILL-DEFINED MIDDLE/UPPER LEVEL 
CYCLONIC CIRCULATION IS POSITIONED IN THE VICINITY OF 10N115W. 
WEAKENING IS EXPECTED OVER THE NEXT COUPLE OF DAYS. FLOW ALOFT 
BECOMES ANTICYCLONIC S OF ABOUT 20N TO THE EQUATOR W OF 125W. 
SOUTHERLY WINDS ALOFT ARE LOCATED FROM MEXICO TO THE EQUATOR 
BETWEEN 90W AND 110W. 

GAP WINDS...                                                 
GULF OF PAPAGAYO...HIGH PRESSURE WILL BUILD SE AND S ACROSS THE 
GULF OF MEXICO AND THE WESTERN CARIBBEAN BEGINNING WEDNESDAY 
WITH NE TO E WINDS 20 TO 25 KT AND SEAS TO 8 FT THROUGH 
THURSDAY.

$$
CAB