000
AXPZ20 KNHC 142130
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC WED AUG 14 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.
                                      
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           

THE MONSOON TROUGH EXTENDS FROM 10N85W TO A 1009 MB LOW NEAR 
10N106W TO 13N114W TO A 1008 MB LOW NEAR 09N120W TO 06N129W. THE 
ITCZ AXIS EXTENDS FROM 06N129W TO 08N140W. SCATTERED MODERATE 
CONVECTION WITHIN 60 NM S OF THE TROUGH BETWEEN 102W AND 111W. 
SCATTERED MODERATE ISOLATED STRONG IS WITHIN 90 NM EITHER SIDE 
OF THE TROUGH BETWEEN 116W AND 126W.

...DISCUSSION...                                                 

A WEAK 1021 MB SURFACE HIGH IS ANALYZED NEAR 30N135W WITH AN 
ASSOCIATED RIDGE EXTENDING SOUTHEASTWARD TO 21N117W. PRESSURE 
GRADIENT BETWEEN THE HIGH AND AREA OF LOW PRESSURE NEAR 12N141W 
IS PRODUCING FRESH NE TO E WINDS AND SEAS TO 9 FT W OF 137W... 
BETWEEN 16N AND 20N. WINDS AND SEAS WILL DECREASE IN THIS REGION 
OVERNIGHT AS SYSTEM CONTINUES MOVING W AWAY FROM FORECAST WATERS.

ASCAT SCATTEROMETER DATA AT 1630 UTC SHOWED A WEAK GAP WIND 
EVENT CONTINUING N OF 15N IN THE GULF OF TEHUANTEPEC. A TROPICAL 
DISTURBANCE IN THE WESTERN CARIBBEAN IS INDUCING SOME NORTHERLY 
FLOW THROUGH THE CHIVELA PASS INTO THE GULF OF TEHUANTEPEC. AS 
THE DISTURBANCE MOVES NW TOWARD THE GULF OF MEXICO...DYNAMIC 
FORCING SHOULD RELAX TONIGHT AND THU.

NO SIGNIFICANT LONG-PERIOD SWELL EPISODES ARE EXPECTED THE NEXT 
SEVERAL DAYS. OVERALL...THE NE PACIFIC REMAINS RELATIVELY QUIET 
NEAR THE PEAK OF HURRICANE SEASON.

$$ 
MUNDELL