000
AXPZ20 KNHC 231553
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SAT FEB 23 2008

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1500 UTC.
 
...ITCZ...

ITCZ AXIS ALONG 5N77W 7N90W 7N100W 8N108W 4N125W 4N140W. 
SCATTERED MODERATE CONVECTION WITHIN A 90 NM RADIUS OF 8N125W. 

...DISCUSSION...

W OF 105W...
STRONG WESTERLY WINDS ALOFT ARE LOCATED N OF ABOUT 25N BECOMING 
MODERATE IN THE AREA FROM 20N TO 25N. WINDS AREA STRONGEST N OF 
25N W OF 128W WITH SATELLITE CLOUD DRIFT WINDS INDICATING SPEEDS 
APPROACHING 100 KNOTS. AT THE SURFACE A 970 MB LOW PRODUCING 
HURRICANE FORCE WINDS IS CENTERED NEAR 38N137W AND IS FORECAST 
TO WEAKEN TO 984 MB AND MOVE E TO NEAR 39N127W...OR ABOUT 160 NM 
OFF THE CALIFORNIA COAST...IN 24 HOURS. A FRONT EXTENDS FROM THE 
LOW THROUGH 35N132W TO 30N132W TO 24N140W. STRONG GALE FORCE 
WINDS ASSOCIATED WITH THIS SYSTEM ARE LOCATED IN THE DISCUSSION 
AREA W OF THE FRONT AND WITHIN 300 NM E OF THE FRONT N OF 28N. 
SEAS ARE AS HIGH AS 24 FT W OF THE FRONT. A LOW LATITUDE 
MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED IN THE 
VICINITY OF 11N133W AND IS NEARLY STATIONARY. MODERATE 
SOUTHWESTERLY WINDS ALOFT ARE LOCATED E OF THE CIRCULATION OVER 
THE DEEP TROPICS TO 105W.

E OF 105W...
WATER VAPOR IMAGERY INDICATES STRONG SUBSIDENCE OVER THIS AREA 
WITH EASTERLY WINDS ALOFT E OF ABOUT 92W BECOMING SOUTHWESTERLY 
OVER THE GULF OF TEHUANTEPEC REGION WESTWARD ACROSS 105W. AT THE 
SURFACE WINDS ARE GENERALLY BELOW 20 KNOTS. 

$$
CAB