000
AXPZ20 KNHC 110307
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI APR 11 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 
0300 UTC.

...ITCZ...
ITCZ AXIS IS CENTERED ALONG 7N78W 5N83W 8N100W 8N110W 8N120W 
4N130W 4N140W. SCATTERED MODERATE TO ISOLATED STRONG IS S OF 
COSTA RICA FROM 5N TO 9N BETWEEN 85W AND 88W. SCATTERED MODERATE 
FROM 2N TO 4N BETWEEN 120W TO 123W...AND FROM 2N TO 4N BETWEEN 
130W AND 133W. 

...DISCUSSION...

W OF 105W...
A 1032 MB HIGH IS CENTERED N OF THE AREA NEAR 38N132W. A RIDGE 
AXIS EXTENDS SW FROM THE HIGH CENTER TO 30N140W. ANOTHER RIDGE 
AXIS EXTENDS SE FROM THE HIGH TO 20N110W. NORTHERLY WINDS TO 20 
KNOTS ARE LOCATED OFF THE BAJA CALIFORNIA COAST. NWLY SWELL 
EXTEND OFF THE BAJA CALIFORNIA COAST FROM 110W TO 130W N OF 10N. 
TRADEWIND EASTERLIES TO 20 KNOTS ARE LOCATED FROM 6N TO 12N W OF 
120W. IN THE UPPER LEVELS...AN UPPER LEVEL HIGH IS CENTERED JUST 
N OF THE AREA NEAR 32N130W. ANTICYCLONIC FLOW IS N OF 25N 
BETWEEN 123W AND 135W.  THE BASE OF A TROUGH IS OFF THE COAST 
BAJA CALIFORNIA N OF 1N BETWEEN 110W AND 123W. AN UPPER LEVEL 
HIGH IS CENTERED OVER THE TROPICS NEAR 6N130W. ANTICYCLONIC FLOW 
IS N OF 1N BETWEEN 122W AND 140W. A PATCH OF STRONG SUBSIDENCE 
IS N OF 25N BETWEEN 110W AND 140W. 

E OF 105W...
MODERATE TRADEWINDS DOMINATES THE AREA. SURFACE WINDS WILL 
REMAIN BELOW 20 KNOTS FOR THE NEXT 48 HOURS...HOWEVER A 
TEHUANTEPEC GALE IS EXPECTED ON 14 APR AT 0000 UTC. A 1009 MB 
LOW IS CENTERED S OF COSTA RICA NEAR 9N87W WITH CONVECTION S OF 
CENTER. SEE ABOVE. IN THE UPPER LEVELS...RIDGING IS PRODUCING 
SLY UPPER LEVEL FLOW. SIGNIFICANT UPPER LEVEL MOISTURE IS FOUND 
E OF 90W AND N OF 4N.

$$
FORMOSA