000
AXPZ20 KNHC 191518
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC TUE NOV 19 2013

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...           
MONSOON TROUGH FROM 10N85W TO 08N95W TO 09N100W TO 07110W. ITCZ 
07N110W TO 05N135W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION FROM 5N-7N BETWEEN E OF 83W.

...DISCUSSION...                                                
AN UPPER LEVEL TROUGH EXTENDS FROM 24N120W TO A CYCLONIC 
CIRCULATION NEAR 16N135W CONTINUES TO 13N140W. SCATTERED SHOWERS 
ARE WITHIN THE CENTER OF THE CYCLONIC CIRCULATION. WITH THE 
EXCEPTION OF THE SHOWERS AND SOME HIGH LEVEL MOISTURE FROM 15N-
20N BETWEEN 124W-137W...MODERATE TO STRONG SUBSIDENCE COVERS THE 
AREA FROM 10N-29N W OF 100W. A BROAD ANTICYCLONIC CIRCULATION IS 
S OF THE TROUGH CENTERED NEAR 3N121W WITH RIDGE FROM THE 
ANTICYLONE NE TO 13N102W.

A 1022 MB SURFACE HIGH PRESSURE IS CENTERED OVER THE N PART OF 
THE AREA NEAR 29N126W WITH ASSOCIATED RIDGE EXTENDING SE TO NEAR 
19N109W. DUE TO THE RELATIVE WEAK HIGH PRESSURE CENTER...THE 
PRESSURE GRADIENT BETWEEN THIS FEATURE AND LOWER PRESSURE IN THE 
VICINITY OF THE ITCZ IS WEAK. AS A RESULT...MAINLY GENTLE TO 
MODERATE TRADES ARE N OF THE ITCZ. A SMALL AREA OF SE CROSS 
EQUATORIAL SWELL WITH SEAS TO 8 FT IS S OF 04N W OF 130W. THE 
SWELL IS FORECAST TO SUBSIDE TO BELOW 8 FT WED.

$$
DGS