000
AXPZ20 KNHC 220916
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1005 UTC MON JUL 22 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
MONSOON TROUGH FROM 10N85W TO 12N100W TO LOW PRES NEAR 10N106W 
1008 MB TO 11N120W TO 11N135W. ITCZ FROM 11N135W TO 12N140W. 
SCATTERED MODERATE TO STRONG CONVECTION WITHIN 150 NM S OF OF 
AXIS FROM 85W-112W AND WITHIN 120 NM S OF AXIS FROM 131W-136W.

...DISCUSSION...                                             
UPPER LEVEL RIDGE OVER THE NW PORTION OF THE DISCUSSION AREA 
EXTENDS FROM AN ANTICYCLONIC CIRCULATION NEAR 15N135W TO 
32N132W. DOWNSTREAM UPPER LEVEL TROUGH EXTENDS FROM 32N129W TO A 
CYCLONIC CIRCULATION CENTERED NEAR 27N126W TO ANOTHER CYCLONIC 
CIRCULATION NEAR 24N119W. MODERATE TO STRONG SUBSIDENCE WITH 
DRY/STABLE AIR AT THE MIDDLE AND UPPER LEVELS IS N OF 15N W OF 
115W. AN UPPER LEVEL ANTICYCLONIC CIRCULATION ALONG THE W COAST 
OF MEXICO NEAR 23N107W. ABUNDANT DEEP LEVEL TROPICAL MOISTURE 
COVERS ALL OF MEXICO AND S INTO CENTRAL AMERICA.

SURFACE RIDGE COVERS THE AREA N OF 20N W OF 120W. A 1008 MB LOW 
PRES IS NEAR 11N107W. S TO SW WINDS ARE SE OF THE LOW FROM
5N-10N BETWEEN 100W-110W. THE LOW IS FORECAST TO MOVE TO THE 
NW. SURFACE TROUGH FROM 20N113W TO 12N121W. ISOLATED SHOWERS 
ARE ALONG THE TROUGH AXIS.

ELY WINDS TO 20-25 KT AND SEAS TO 8 FT ACROSS THE GULF OF 
PAPAGAYO WILL DECREASE LESS THAN 20 KT AND SEAS LESS THAN 8 FT 
TONIGHT. 

$$
DGS