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Eastern Pacific Tropical Weather Discussion



000
AXPZ20 KNHC 040235
TWDEP 

TROPICAL WEATHER DISCUSSION                                      
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
0405 UTC FRI SEP 04 2015

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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0230 UTC.               

...SPECIAL FEATURES...

TROPICAL STORM KEVIN NEAR 19.7N 115.8W AT 0300 UTC SEPTEMBER 4 
MOVING N OR 360 DEG AT 8 KT. MAXIMUM SUSTAINED WINDS ARE 50 KT 
GUSTS 60 KT. ESTIMATED MINIMUM PRESSURE IS 999 MB. NUMEROUS 
MODERATE TO STRONG CONVECTION WAS NOTED WITHIN 60 NM OF CENTER. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION WAS NOTED 
ELSEWHERE FROM 16N TO 22N BETWEEN 113W AND 117W. KEVIN IS 
EXPECTED TO REMAIN A TROPICAL STORM BEFORE ENVIRONMENTAL 
CONDITIONS BECOME UNFAVORABLE WITH DIMINISHING SST AND A DRIER 
MORE STABLE ENVIRONMENT SAT NIGHT. REFER TO THE LATEST NHC 
FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP4/WTPZ24 KNHC 
FOR ADDITIONAL DETAILS. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...            

THE MONSOON TROUGH EXTENDS FROM 09N84W TO 10N90W TO 09N92W TO 
11N102W TO 12N107W. SCATTERED MODERATE CONVECTION WAS NOTED 
WITHIN 270 NM S OF TROUGH BETWEEN 90W AND 101W. SCATTERED 
MODERATE CONVECTION WAS NOTED WITHIN 180 NM S AND 120 NM N OF 
TROUGH BETWEEN 101W AND 107W. 

...DISCUSSION...

HURRICANE JIMENA REMAINS JUST W OF THE FORECAST AREA. SEAS 
GENERATED BY THE HURRICANE COVER A PORTION OF WESTERN FORECAST 
WATERS WITH SEAS GREATER THAN 8 FT CURRENTLY FROM 10N TO 28N W 
OF 136W. SEAS GREATER THAN 8 FT WILL CONTINUE TO COVER MUCH OF 
THIS AREA DURING THE NEXT COUPLE OF DAYS. 

HIGH PRESSURE OF 1029 MB CENTERED NW OF THE AREA NEAR 43N147W 
EXTENDS A RIDGE SE TO NEAR 26N117W. GENTLE TO MODERATE WINDS ARE 
FOUND OVER MOST OF THE AREA OUTSIDE OF JIMENA AND KEVIN. CROSS-
EQUATORIAL SW SWELL PREVAILS OVER SOUTHERN WATERS S OF A LINE 
FROM 03N133W TO 10N126W TO 10N111W TO 03.4S95W. THE AREAL 
COVERAGE OF SEAS 8 FT OR GREATER WILL SLOWLY DECREASE OVER THE 
NEXT COUPLE OF DAYS. BY SAT AFTERNOON SEAS 8 FT OR GREATER WILL 
COVER THE AREA FROM 08N TO 10N BETWEEN 105W AND 122W. 

$$
AL


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Page last modified: Friday, 04-Sep-2015 02:35:46 UTC