000
AXPZ20 KNHC 241516
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC THU JAN 24 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 
1200 UTC.
 
...ITCZ...
ITCZ AXIS ALONG 3N78W 5N185W 4N100W 11N120W 8N140W. NO 
SIGNIFICANT CONVECTION.

...DISCUSSION...
MID/ UPPER TROUGH EXTENDS SW FROM DEEP LEVEL CYCLONE NEAR THE 
NORTHERN CALIFORNIA COAST COVERS THE DISCUSSION AREA N OF 20N W 
OF 120W. ASSOCIATED SURFACE COLD FRONT IS ANALYZED FROM NORTHERN 
BAJA CALIFORNIA NEAR 32N116W TO 25N115W TO 23N125W. A 100-115 KT 
SUBTROPICAL JETSTREAM EXTENDS FROM 17N140W TO 26N121W WHERE 
WINDS INCREASE TO 125-140 KT THE JET CONTINUE NE ACROSS THE 
NORTHERN GULF OF CALIFORNIA INTO SE ARIZONA. ABUNDANT TROPICAL 
MOISTURE IS BEING ADVECTED NEWD INTO NORTHERN MEXICO S OF THE 
JET AXIS. A BROAD MID/UPPER LEVEL RIDGE IS E OF THE TROUGH. 

IN THE DEEP TROPICS A BROAD MID/UPPER LEVEL RIDGE IS S OF 20N W
OF 103W. AN UPPER LEVEL EXTENDS FROM HONDURAS SW TO THE EQUATOR
AT 94W. STRONG SUBSIDENCE...WITH ASSOCIATED DRY AIR AT THE MID
AND UPPER LEVELS OF THE ATMOSPHERE S OF 20N E OF 105W...WITH
MOSTLY CLEAR SKIES N OF THE ITCZ.

A 1021 MB SURFACE HIGH IS CENTERED OVER THE CENTRAL BAJA 
PENINSULA NEAR 28N113W. SATELLITE IMAGERY SHOWS LARGE FIELD OF 
STRATOCUMULUS CLOUDS ADVECTING S IN A BROAD ARC BEHIND THE 
FRONT. A PERSISTENT TROUGH ALONG THE ITCZ REMAINS ALONG 123W 
FROM 14N-8N. 

$$
DGS