000
AXPZ20 KNHC 250308
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
0405 UTC WED JUL 24 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...SPECIAL FEATURES...                                          
TROPICAL DEPRESSION SIX IS CENTERED NEAR 15.2N 122.0W AT 25/0300 
UTC OR 825 NM WSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MOVING 
WNW AT 12 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1005 MB. 
MAXIMUM SUSTAINED WIND SPEED IS 30 KT WITH GUSTS TO 40 KT. 
SCATTERED MODERATE AND ISOLATED STRONG CONVECTION IS WITHIN 210 
NM OF CENTER WITHIN THE NW QUADRANT. ELSEWHERE ISOLATED MODERATE 
CONVECTION IS FROM 06N TO 18N BETWEEN 117W AND 124W. SEE LATEST 
NHC FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP1/WTPZ21 
KNHC FOR MORE DETAILS. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
THE MONSOON TROUGH EXTENDS FROM 07N78W TO 07N92W TO 13N116W. 
AXIS RESUMES NEAR 12N124W TO 10N129W TO 12N134W TO 11N140W. 
WIDELY SCATTERED MODERATE CONVECTION IS FROM 07N TO 10N BETWEEN 
76W AND 82W...AND FROM 11N TO 16N BETWEEN 103W AND 113W. 
SCATTERED MODERATE CONVECTION IS FROM 08N TO 12N BETWEEN 124W 
AND 136W.

...DISCUSSION...                                                

A NEARLY STATIOANRY 1027 MB HIGH PRESSURE CENTER IS LOCATED WELL 
N OF THE DISCUSSION AREA NEAR 43N138W WITH A SURFACE RIDGE 
EXTENDING SOUTHEASTWARD. THE RIDGE CONTINUES TO INFLUENCE THE NW 
PORTION OF THE AREA N OF 18N W OF 134W. A VERY WEAK PRESSURE 
GRADIENT DOMINATES THE REMAINDER OF THE NORTHERN PORTION OF THE 
AREA...PARTICULARLY N OF 20N E OF 130W. A WEAK SURFACE TROUGH IS 
ANALYZED IN BETWEEN THESE AREAS FROM 26N133W TO 35N126W. THE 
TROUGH IS EXPECTED TO WEAKEN AS A HIGH PRESSURE CENTER FORMS IN 
THE VICINITY OF 29N125W BY EARLY THURSDAY. TRADE WINDS IN THE 
RANGE OF 15 TO 20 KT ARE NOTED SOUTH OF THE RIDGE AND NORTH OF 
THE MONSOON TROUGH ELSEWHERE W OF 125W.

E WINDS OF 15 TO 20 KT CONTINUE ACROSS THE GULF OF PAPAGAYO AND 
INTO THE ADJACENT COASTAL WATERS TO THE WEST. THE WINDS ARE 
GREATEST DURING THE OVERNIGHT AND EARLY MORNING HOURS WITH THE 
ASSISTANCE OF THE NOCTURNAL DRAINAGE FLOW.

CROSS EQUATORIAL S AND SW SWELLS TO 8 FT ARE FORECAST TO MOVE 
INTO THE AREA S OF 03N BETWEEN 105W AND 123W WITHIN 36 HOURS AND 
SPREAD SLOWLY N INTO FRIDAY. 

$$
HUFFMAN