000
AXPZ20 KNHC 141506
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC MON APR 14 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 CENTERED ALONG 7N78W 4N90W 8N100W 5N125W 4N140W. SCATTERED 
MODERATE TO STRONG CONVECTION FROM 6N-9N BETWEEN 84W-87W AND 
FROM 9N-14N BETWEEN 94W AND 99W AND WITHIN 240 NM N OF AXIS FROM 
106W TO 118W.

...DISCUSSION...
MID/UPPER LEVEL TROUGH OVER THE FAR W PORTION OF THE AREA EXTENDS
FROM 22N140W 15N130W TO EQUATOR AT 121W. UPPER LEVEL RIDGE E OF 
THE TROUGH WITH AXIS FROM THE NORTHERN ROCKIES TO SOUTHERN 
CALIFORNIA TO 32N123W TO 22N127W. MODERATE TO STRONG SUBSIDENCE 
WITHIN THE RIDGE N OF 20N BETWEEN 115W-132W. UPPER LEVEL TROUGH 
EXTENDS FROM SW NEW MEXICO ACROSS NORTHERN BAJA CALIFORNIA TO 
25N120W. A 75-95 KT SUBTROPICAL JETSTREAM IS S OF THE TROUGH 
AXIS FROM THE SOUTHERN TIP OF THE BAJA PENINSULA ACROSS NORTHERN 
MEXICO TO S TEXAS. UPPER LEVEL ANTICYCLONIC CIRCULATION CENTERED 
OVER THE SW CARIBBEAN WITH RIDGE EXTENDING FROM THE CIRCULATION 
ACROSS NICARAGUA TO 23N107W. A VERY MOIST UNSTABLE AIRMASS IS S 
OF THE RIDGE AXIS.

STATIONARY FRONT OVER SOUTHERN MEXICO WITH STRONG HIGH PRES N
OF THE FRONT IN THE WESTERN GULF OF MEXICO HAS PRODUCED A
TIGHT GRADIENT RESULTING IS STORM FORCE WINDS IN THE GULF OF
TEHUANTEPEC. A 1010 MB SURFACE LOW ANALYZED JUST N OF THE ITCZ
NEAR 7N92W...ONLY A FEW SHOWERS ASSOCIATED WITH THE LOW.
OTHERWISE HIGH PRES COVERS THE AREA N OF 13N W OF 110W.

$$
DGS