000
AXPZ20 KNHC 032125
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC TUE DEC 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2030 UTC.

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

MONSOON TROUGH FROM 07N77W TO 10N86W TO 07N100W TO LOW PRES NEAR 
07.5N115W TO 06N124W. ITCZ FROM 06N124W TO 10N134W TO 09N140W.  
SCATTERED MODERATE ISOLATED STRONG WITHIN 210 NM NE QUADRANT OF 
LOW.

...DISCUSSION...

A RIDGE DOMINATES THE NW CORNER OF THE FORECAST AREA. PRES 
GRADIENT BETWEEN THE RIDGE AND A 1013 MB LOW PRES LOCATED NEAR 
21N133W IS PRODUCING AN AREA OF FRESH TO STRONG WINDS MAINLY N 
OF 24N BETWEEN 130W AND 137W WITH SEAS IN THE 8 TO 11 FT RANGE 
BASED ON A RECENT ALTIMETER PASS. THE LOW WILL CONTINUE TO 
WEAKEN...GRADUALLY DISSIPATING TO A TROUGH BY 24 HOURS...WITH 
THE TROUGH DISSIPATING BY 36 HOURS. AS A RESULT...WINDS AND SEAS 
WILL DIMINISH IN ASSOCIATION WITH THIS FEATURE. HOWEVER...THE 
RIDGE WILL BE REINFORCING BY STRONG HIGH PRES LOCATED WELL N OF 
AREA BRINGING AGAIN AN INCREASE IN WINDS AND SEAS ACROSS THE N 
WATERS...PARTICULARLY N OF 21N W OF 130W IN ABOUT 36-48 HOURS.
 
A 1009 MB LOW PRES IS EMBEDDED IN THE MONSOON TROUGH NEAR 
07.5N115W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS 
NOTED WITHIN 210 NM IN THE NE QUADRANT OF THE LOW. SCATTEROMETER 
DATA SHOWED FRESH TO STRONG WINDS WITHIN 180 NM IN THE NE 
QUADRANT... ALONG WITH 8-9 FT SEAS. ANOTHER AREA OF SOUTHERLY 
FRESH TO STRONG WINDS IS NOTED S OF THE MONSOON TROUGH TO 02N 
BETWEEN 110W AND 115W. THIS LOW IS FORECAST TO DISSIPATED WED 
AFTERNOON WITH ASSOCIATED WINDS AND SEAS DIMINISHING/SUBSIDING 
BY THEN.

MEANWHILE...THE GAP WIND REGIONS ARE QUIET WITH MAINLY LIGHT TO 
LOCALLY MODERATE WINDS DURING THE NEXT 48 HOURS...ALONG WITH 1-3 
FT SEAS.

$$
GR