000
AXPZ20 KNHC 130332
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN APR 13 2008

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0315 UTC.

...ITCZ...

ITCZ AXIS IS CENTERED ALONG 6N78W 4N90W 7N105W 5N120W 5N140W. 
SCATTERED MODERATE ISOLATED STRONG CONVECTION IS LOCATED FROM 5N 
TO 9N BETWEEN 86W AND 91W...WITHIN 60 NM EITHER SIDE OF A 4N91W 
7N97W LINE...AND WITHIN 60 NM EITHER SIDE OF A 6N100W 9N104W 
9N110W LINE. 

...DISCUSSION...

W OF 105W...
A LARGE MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED NEAR 
22N122W AND IS NEARLY STATIONARY. A TROUGH AXIS EXTENDS SW FROM 
THE CIRCULATION CENTER TO 15N135W. WATER VAPOR SATELLITE IMAGERY 
INDICATES STRONG SUBSIDENCE COVERING THE AREA ABOUT 8 DEGREES 
EITHER SIDE OF THE TROUGH AXIS. THE FLOW ALOFT OVER THE NW PART 
OF THE DISCUSSION AREA IS BECOMING INCREASINGLY ANTICYCLONIC N 
OF ABOUT 25N W OF 125W WITH THE AXIS EXTENDING FROM 32N132W TO 
22N140W. A JET ORIGINATES IN THE TROPICS NEAR 12N135W AND 
CONTINUES THROUGH 14N120W TO THE MEXICAN COAST NEAR 23N. 
SATELLITE CLOUD DRIFT WINDS INDICATE THE HIGHEST SPEEDS E OF 
120W AND MEASURE 60 TO 70 KNOTS. AT THE SURFACE MODERATE TRADE 
WINDS ARE LOCATED FROM 7N TO 20N W OF 128W WITH SEAS TO 8 FT. 
THESE CONDITIONS WILL CONTINUE THROUGH 48 HOURS. 

E OF 105W...
LIGHT WINDS ALOFT COVER THIS AREA AND ARE MOSTLY EASTERLY TO 
SOUTHEASTERLY. A GALE WARNING IS FORECAST OVER THE GULF OF 
TEHUANTEPEC IN 36 HOURS WITH N TO NE WINDS 30 TO 40 KT AND SEAS 
9 TO 13 FT.

$$
CAB