000
AXPZ20 KNHC 071532
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1605 UTC WED AUG 07 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...                                  
HURRICANE HENRIETTE IS CENTERED NEAR 16.2N 134.9W AT 07/1500 UTC 
OR ABOUT 1175 E OF HILO HAWAII OR ABOUT 1470 NM W OF THE 
SOUTHERN TIP OF BAJA CALIFORNIA MOVING WNW AT 09 KT. ESTIMATED 
CENTRAL PRESSURE IS 983 MB. MAXIMUM SUSTAINED WIND SPEED IS 75 
KT WITH GUSTS TO 90 KT. SCATTERED MODERATE AND ISOLATED STRONG 
CONVECTION IS WITHIN 120 NM OF CENTER. ISOLATED MODERATE 
CONVECTION IS ELSEWHERE FROM 13N TO 18N BETWEEN 132W AND 137W 
SEE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS 
MIATCMEP3/WTPZ23 KNHC FOR ADDITIONAL DETAILS.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
THE MONSOON TROUGH EXTENDS FROM 08N78W TO 08N87W TO 12N111W TO 
09N122W TO 12N128W. SCATTERED MODERATE AND ISOLATED STRONG 
CONVECTION IS FROM 03N TO 08N BETWEEN 77W AND 81W...AND FROM 05N 
TO 07N BETWEEN 81W AND 84W. SCATTERED MODERATE CONVECTION IS 
FROM 06N TO 09N BETWEEN 87W AND 93W...AND FROM 11N TO 14N 
BETWEEN 99W AND 103W. WIDELY SCATTERED MODERATE CONVECTION IS 
FROM 06N TO 12N BETWEEN 96W AND 106W...AND FROM 07N TO 15N 
BETWEEN 113W AND 127W.

...DISCUSSION...                                                
E OF 110W...WATER VAPOR IMAGERY INDICATES AN UPPER LEVEL LOW IS 
CENTERED NEAR 11N93W THAT CONTINUES TO DRIFT WESTWARD. GENERALLY 
NORTHEASTERLY DIFFLUENT FLOW ALOFT WEST OF THIS LOW AND ON THE 
SOUTHWESTERN PERIPHERY OF AN UPPER RIDGE CENTERED OVER THE NW 
GULF OF MEXICO IS GENERATING CLUSTERS OF WIDELY SCATTERED TO 
SCATTERED MODERATE CONVECTION FROM 07N TO 15N BETWEEN 96W AND 
106W. OTHERWISE...MONSOONAL FLOW DOMINATES THE REGION S OF THE 
TROUGH AND AREAS TO THE WEST-SOUTHWEST...WITH S TO SW WINDS 
GENERALLY LESS THAN 20 KT AS DEPICTED BY EARLIER OVERNIGHT 
SCATTEROMETER PASSES. EARLIER ALTIMETER PASSES ALSO INDICATED 
SEAS ARE GENERALLY LESS THAN 7 FT ACROSS THE AREA E OF 110W.

W OF 110W...THE MAIN FEATURE IS HURRICANE HENRIETTE. PLEASE SEE 
THE LATEST NHC TROPICAL CYCLONE DISCUSSION ON HENRIETTE UNDER 
AWIPS/WMO HEADERS MIATCDEP3/WTPZ43 KNHC FOR A MORE IN DEPTH 
DISCUSSION. EXPECT SWELL RELATED TO HENRIETTE OF GREATER THAN 8 
FT GENERALLY FROM 14N TO 22N W OF 129W OVER THE NEXT COUPLE OF 
DAYS. OTHERWISE...BROAD HIGH PRESSURE IS CENTERED N OF THE AREA 
ANCHORED BY A PAIR OF 1024 MB HIGHS CENTERED NEAR 31N132W AND 
31N142W.

$$
HUFFMAN