000
AXPZ20 KNHC 030930
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN FEB 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH ALONG 10N85W TO 6N90W. ITCZ FROM 6N90W 3N105W TO 
7N119W. NO SIGNIFICANT CONVECTION.

...DISCUSSION...
UPPER LEVEL TROUGH OVER THE FAR W PORTION OF THE DISCUSSION AREA 
EXTENDS FROM 32N131W TO CYCLONIC CIRCULATION CENTERED NEAR 
20N132W. SCATTERED SHOWERS ARE FROM 15N-25N E OF THE CYCLONIC 
CIRCULATION TO 130W. A 120-125 KT JETSTREAM ON THE W SIDE OF THE 
TROUGH FROM 32N138W TO 21N140W WHERE WINDS INCREASE TO 145 KT. A 
SLY 95-100 KT JET SE OF THE TROUGH FROM 12N134W TO 20N120W. A 
BROAD UPPER LEVEL RIDGE IS E OF THE TROUGH. STRONG SUBSIDENCE 
WITH DRY AND STABLE AT THE MIDDLE AND UPPER LEVELS IS ACROSS THE 
AREA IS S OF 15N E OF 115W.

GALE FORCE WINDS CONTINUE TO BLOW THROUGH THE GULF OF 
TEHUANTEPEC. THE WINDS ARE FORECAST TO DECREASE TO BELOW GALE 
FORCE TONIGHT AND LESS THEN 20 KT MON.

A 1010 MB LOW PRES IS CENTERED NEAR 19N139W...THIS COMBINED WITH 
HIGH PRES N OF THE DISCUSSION AREA PRODUCING A STRONG ENOUGH 
PRES GRADIENT FOR ELY WINDS 20-25 KT FROM 20N-27N W OF 128W. 
OTHERWISE LARGE NW SWELL UP TO 15 FT N OF 15N W OF 125W. THE LOW 
IS FORECAST TO WEAKEN TO A TROUGH SUN NIGHT.

ELY WINDS IN THE 20-25 KT RANGE CONTINUE THROUGH THE GULF OF 
PAPAGAYO. THE WINDS ARE FORECAST TO FINALLY DECREASE TO LESS THAN 
20 KT LATE MON.

$$
DGS