000
AXPZ20 KNHC 140229
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC WED APR 14 2010

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 
0230 UTC.

...ITCZ...

AXIS EXTENDS ALONG FROM 06N77W TO 04N98W TO 6N112W TO 05N118W 
TO 06N128W TO 06N140W. SCATTERED MODERATE/ISOLATED STRONG 
CONVECTION IS FROM 03N TO 09N BETWEEN 84W TO 92W.

...DISCUSSION...
E OF 105W...
A SURFACE TROUGH EXTENDS FROM 09N88W TO 04N86W. AN EXTENDS FROM 
OVER SOUTH AMERICA ALONG 7N TO 92W ENHANCING CLUSTERS OF 
SCATTERED MODERATE/ISOLATED STRONG CONVECTION COVERING THE AREA 
DESCRIBED IN THE ITCZ. 

W OF 105W...
AN UPPER HIGH IS NEAR 11N117W WITH A RIDGE EXTENDING NE TO OVER 
NW MEXICO NEAR 28N106W WITH AN UPPER TROUGH EXTENDING FROM OVER 
NORTHERN PLAIN STATES THROUGH A SERIES OF UPPER LOWS N AND W OF 
THE REGION. A BAND OF STRONG SUBSIDENCE AND DRY STABLE AIR ALOFT 
IS WITHIN 200 NM OF LINE FROM 21N140W TO OVER THE N BAJA 
PENINSULA NEAR 30N110W. AT THE SURFACE...A SURFACE RIDGE EXTENDS 
THROUGH 32N133W TO 23N118W. 

NE TRADES AT 15 TO 20 KT GENERALLY COVER THE AREA FROM 10N TO 
20N W OF 120W. THE NW SWELL OVER THE N PORTION OF THE AREA IS 
PROPAGATING SE AND MIXING WITH THE SOUTHERLY SWELL THAT COVERS 
THE REMAINDER OF THE AREA. 

GAP WINDS...
GULF OF PAPAGAYO...NE TRADES TRADES OVER THE SW CARIBBEAN SEA 
ARE DIMINISHING THAT HAVE BEEN FUNNELING THROUGH THE GULF OF 
PAPAGAYO TO DIMINISH BELOW 20 KT BY WED AFTERNOON.

FOR ADDITIONAL INFORMATION PLEASE VISIT 
HTTP://WWW.HURRICANES.GOV/MARINE

$$
WALLACE