000
AXPZ20 KNHC 280920
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SAT SEP 28 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 10N86W TO LOW PRES 08N99W THEN RESUMES FROM 
LOW PRES NEAR 18N107W TO LOW PRES 11N116W TO 10N135W. SCATTERED 
MODERATE TO STRONG CONVECTION FROM 4N-8N BETWEEN 77W-86W AND 
FROM 07N-10N BETWEEN 98W-101W.

...DISCUSSION...     
                                    
UPPER LEVEL TROUGH OVER THE FAR WEST PORTION OF THE DISCUSSION 
AREA WITH AXIS FROM 32N132W TO A CYCLONIC CIRCULATION CENTERED 
NEAR 26N134W TROUGH CONTINUES TO 18N134W. AN UPPER LEVEL 
ANTICYCLONIC CIRCULATION IS SW OF THE TIP OF THE BAJA PENINSULA 
NEAR 20N111W WITH RIDGE SW TO 14N132W. MODERATE TO STRONG 
SUBSIDENCE WITH DRY AND STABLE AIR AT THE MIDDLE AND UPPER LEVEL 
IS ACROSS THE AREA N OF 19N W OF 110W. A MIDDLE TO UPPER LEVEL 
TROUGH PROGRESSING EASTWARD OVER THE WESTERN U.S. WITH A  TROUGH 
AXIS EXTENDING FROM THE CALIFORNIA/ARIZONA BORDER NEAR 32N114W 
TO A BROAD BASE NEAR 29N120W.

ACROSS THE AREA N OF 20N BETWEEN 118W-132W NW SWELL WITH SEAS OF 
8-10 FT AND 5-7 FT ACROSS THE REMAINDER OF THE AREA N OF 20N. 
THESE SWELLS WILL SUBSIDE TO LESS THAN 8 FT BY THIS AFTERNOON.

AN AREA OF SW WIND TO 20 KT AND 8-9 FT IN NW SWELL FROM 7N-12N 
BETWEEN 110W-120W. THESE SEAS ARE FORECAST TO SUBSIDE TO LESS 
THAN 8 FT BY SUN AFTERNOON. 

$$
DGS