000
AXPZ20 KNHC 060909
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1005 UTC TUE AUG 06 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.

...SPECIAL FEATURES...
HURRICANE HENRIETTE AT 13.8N 130.9W AT 0900 UTC WITH MINIMUM 
CENTRAL PRES 991 MB AND MAXIMUM SUSTAINED WIND 65 GUSTS TO 80 KT 
MOVING WNW OR 300 DEGREES AT 9 KT. NUMEROUS MODERATE TO STRONG 
CONVECTION WITHIN 90 NM NE AND 50 NM SW SEMICIRCLES. HENRIETTE 
FORECAST TO STRENGTHEN SOME MORE AS SYSTEM MOVES W OVER WARM SEA 
SURFACE TEMPERATURES AND FAVORABLE UPPER LEVEL ENVIRONMENT. SEE 
LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS 
MIATCMEP3/WTNT23 KNHC FOR ADDITIONAL DETAILS.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
MONSOON TROUGH FROM 8N83W TO 9N95W TO 10N110W TO 14N123W.  
SCATTERED MODERATE ISOLATED STRONG CONVECTION WITHIN 70 NM S AND 
200 NM N OF AXIS FROM 99W-105W AND WITHIN 200 NM S OF AXIS FROM 
114W-118W.

...DISCUSSION...
UPPER LEVEL TROUGH ACROSS THE EXTREME NW CORNER OF DISCUSSION 
AREA FROM 32N130W TO CYCLONIC CIRCULATION NEAR 27N134W 
CONTINUING TO 24N137W. AN 70-80 KT JETSTREAM IS SE OF THE 
CYCLONIC CIRCULATION FROM 23N138W TO 27N129W. MODERATE TO STRONG 
SUBSIDENCE WITH DRY AND STABLE AIR AT THE MIDDLE AND UPPER 
LEVELS COVERS THE AREA N OF 20N W OF 115W. UPPER LEVEL RIDGE 
EXTENDS AN ANTICYCLONIC CIRCULATION NEAR 18N122W TO 25N115W.
ABUNDANT DEEP LAYER TROPICAL MOISTURE IS FROM 5N-15N E OF 117W.

TROPICAL STORM GIL HAS MOVED W OF THE DISCUSSION AREA HOWEVER 
NUMEROUS MODERATE TO STRONG CONVECTION ASSOCIATED WITH GIL IS 
FROM 12N-14N W OF 139W ALSO SOME LINGERING NE SWELL TO 8 FT IS 
FROM 14N-16N W OF 138W.
 
BROAD SURFACE HIGH PRES RIDGE IS N OF 20N W OF 118W. OUTSIDE OF 
THE TROPICAL CYCLONES SURFACE WINDS ACROSS THE AREA ARE 20 KT OR 
LESS AND SEAS ARE LESS THAN 8 FT.

$$
DGS