000
AXPZ20 KNHC 250918
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON FEB 25 2008

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

BASED ON 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0845 UTC.
 
...ITCZ...
ITCZ AXIS ALONG 5N77W 4N83W 9N113W 5N130W 4N140W. ISOLATED 
MODERATE CONVECTION NEAR 6N78W. ISOLATED STRONG NEAR 6N79W. 
ISOLATED MODERATE NEAR 4N86W 9N102W 8N111W. SCATTERED MODERATE 
NEAR 11N111W AND 10N115W. ISOLATED MODERATE NEAR 7N124W AND 
6N127W.

...DISCUSSION...

A MID LEVEL RIDGE EXTENDS FROM OVER MEXICO AND CENTRAL AMERICA 
WWD TO 130W THEN NWD ALONG 130W. ONE SHORTWAVE TROUGH ALONG 115W 
JUST N OF THE AREA WAS MOVING E WHILE A LARGER SHORTWAVE WAS 
OVER THE CENTRAL PACIFIC ALONG 155W MOVING E. ON THE SURFACE 
TONIGHT A 1026 MB HIGH NEAR 30N130W ANCHORS THE PACIFIC RIDGE 
AND IS PRODUCING NWLY WINDS TO 20 KT ALONG THE BAJA COAST. NW 
SWELL TO 15 FT CONTINUE TO MOVE EWD ALONG THE NRN BAJA COAST. 
THE RIDGE IS RESPONSIBLE FOR NE TRADES TO 20 KT S OF 20N W OF 
115W WITH NW SWELL 9 TO 12 FT. GAP WINDS ARE MOSTLY LIGHT EXCEPT 
FOR PAPAGAYO WHERE SSMI IMAGERY SHOWS E WINDS TO 20 KT. 

LATER DAY 1 THE STRONG SHORTWAVE OVER THE CENTRAL PACIFIC WILL 
CONTINUE EWD WITH THE MID LEVEL FLOW BECOMING MORE SWLY N OF 25N 
W OF 135W. THE MID LEVEL RIDGE HOLDS FIRM S OF 25N BUT IS 
SHIFTING EWD N OF 28N. ON THE SURFACE LATER DAY 1 THE PACIFIC 
RIDGE DRIFTS EWD TO 126W WITH LITTLE CHANGE TO BAJA WINDS OR NE 
TRADES. NW SWELL OF 10 TO 15 FT WILL CONTINUE ALONG THE BAJA 
COAST. GULF OF PANAMA WINDS INCREASE TO 20 KT AND PAPAGAYO WINDS 
REMAIN ABOUT THE SAME. TEHUANTEPEC WINDS MOSTLY LIGHT.

FOR DAY 2 THE MID LEVEL RIDGE CONTINUES SHIFTING E TO NEAR 123W 
WHILE REMAINING FLAT OVER MUCH OF THE REGION S OF 25N. MID LEVEL 
SWLY FLOW CONTINUES N OF 25N W OF 130W WITH THE STRONG SHORTWAVE 
MOVING ENE AND BRUSHING THE AREA. ON THE SURFACE DAY 2 SOME 
SLIGHT WEAKENING OF THE PACIFIC RIDGE WITH WINDS ALONG THE BAJA 
COAST WEAKENING TO 10 TO 15 KT. NW SWELL ALSO DIMINISHING BUT 
STILL 9 TO 12 FT. GAP WINDS DECREASE IN PAPAGAYO AREA AND 
THROUGH GULF OF PANAMA.

$$
RRG