000
AXPZ20 KNHC 031523
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1605 UTC SAT AUG 03 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.

...SPECIAL FEATURES... 
TROPICAL STORM GIL NEAR 15.0N 132.6W AT 1500 UTC MOVING W OR 275 
DEGREES AT 10 KT. ESTIMATED CENTRAL PRES 999 MB. MAXIMUM 
SUSTAINED WIND 50 GUSTS TO 60 KT. NUMEROUS MODERATE TO STRONG 
CONVECTION IS FOUND WITHIN 75 NM NW AND 30 NM SE SEMICIRCLES. 
THE LATEST FORECAST IS FOR CONTINUED WEAKENING AS GIL MOVES 
WESTWARD INTO PROGRESSIVELY INCREASING SHEAR AND COOLER WATERS. 
SEE LATEST NHC FORECAST/ ADVISORY UNDER AWIPS/WMO HEADERS 
MIATCMEP2/WTNT22 KNHC FOR ADDITIONAL DETAILS.

JUST E OF GIL...NEWLY UPGRADED TROPICAL DEPRESSION EIGHT-E WAS 
CENTERED NEAR 13.0N 123.0W WITH AN ESTIMATED SEA LEVEL PRESSURE 
OF 1009 MB AND MAXIMUM SUSTAINED WINDS OF 25 KT WITH GUSTS TO 35 
KT AT 1500 UTC. NUMEROUS MODERATE TO STRONG CONVECTION WAS FOUND 
WITHIN 120 NM SE AND 30 NM NW SEMICIRCLES OF THE DEPRESSION. THE 
SYSTEM IS MOVING TOWARD THE WEST OR 270 DEGREES AT 8 KT AND IS 
FORECAST TO INTENSIFY TO A TROPICAL STORM SUNDAY MORNING WHILE 
CONTINUING ON A WESTWARD TRACK. SEE LATEST NHC FORECAST/ 
ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP3/WTNT23 KNHC FOR 
ADDITIONAL DETAILS.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
THE MONSOON TROUGH EXTENDS FROM 08N84W TO 09N100W TO 11N115W. 
SCATTERED MODERATE CONVECTION WITHIN 90 NM S OF AXIS BETWEEN 
106W TO 113W.

...DISCUSSION... 
HIGH PRESSURE IS CENTERED N OF THE AREA NEAR 39N133W WITH RIDGE 
EXTENDING SE INTO THE AREA EXTENDING TO NEAR 19N112W. THE 
MONSOON TROUGH BREAKDOWN OVER THE WESTERN HALF OF THE FORECAST 
AREA IS EVIDENT WITH TROPICAL STORM GIL AND NEWLY UPGRADED 
TROPICAL DEPRESSION EIGHT-E DISCUSSED ABOVE. THOSE SYSTEMS WILL 
BE THE MAJOR PLAYERS IN TO FORECAST OVER THE NEXT COUPLE OF DAYS 
AS WINDS AND SEAS ELSEWHERE OVER THE AREA WILL REMAIN BELOW 
ADVISORY CRITERIA. 

$$ 
AL