000
AXPZ20 KNHC 160223
TWDEP 

TROPICAL WEATHER DISCUSSION    
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC WED MAY 16 2007

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 
0245 UTC.

...ITCZ...
ITCZ AXIS ALONG 6N77W 7N106W 8N113W 8N125W 6N140W. SCATTERED 
MODERATE CONVECTION 120 NM WIDE 87W TO 100W.SCATTERED MODERATE 
TO STRONG CONVECTION 250 NM WIDE FROM 112W TO 120W.

...DISCUSSION...

UPPER LEVELS...
MOSTLY ZONAL FLOW WEST OF 130W. A SHORT WAVE TROUGH EXTENDS FROM 
32N121W TO 26N120W MOVING NE 20 TO 25 KT.  DIFFLUENT FLOW 
BETWEEN THE TROUGHING AND WEAK RIDGING FURTHER S IS HELPING TO 
SUPPORT THE CONVECTION WITH THE ITCZ BETWEEN 1123W-1201W. UPPER 
SW FLOW IS SPREADING THE UPPER MOISTURE OVER THIS ACTIVITY 
THROUGH CENTRAL MEXICO. RIDGING GENERALLY DOMINATES THE UPPER 
PATTERN IN THE FAR NE PORTION OF THE AREA.

LOW LEVELS...

A RIDGE EXTENDS FROM 32N136W TO 17N107W. A TROUGH S OF 12N ALONG 
117W IS MOVING W 10 KT OR LESS. 

OCEAN FEATURES...
FROM 9N TO 17N W OF 125W NE WINDS 20 KT SEAS TO 8 FT.
N OF 26N BETWEEN 118W AND 128W N WINDS LESS THAN 20 KT SEAS 8 TO 
9 FT IN N SWELL.
WITHIN 60NM EITHER SIDE OF A LINE 16N94.5W 13N96W 12N98W 
INCLUDING THE GULF OF TEHUANTEPEC...N WINDS 20 TO 25 KT SEAS TO 
10 FT. 

$$
FET