000
AXPZ20 KNHC 280329
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN MAR 28 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 
0300 UTC.

...ITCZ...

THE ITCZ AXIS IS ANALYZED ALONG 04N77W TO 06N95W TO 07N112W TO 
05N127W TO 03N140W. SCATTERED STRONG CONVECTION IS LOCATED 
WITHIN 90 NM EITHER SIDE OF A LINE FROM 06N123W TO 06N129W TO 
03N133W TO 02N140W. SCATTERED MODERATE ISOLATED STRONG 
CONVECTION IS LOCATED WITHIN 30 NM EITHER SIDE OF A LINE FROM 
10.5N104W TO 08.5N110W AND WITHIN 90 NM EITHER SIDE OF A LINE 
FROM 10N112W TO 07N118W.

...DISCUSSION...

W OF 105W...
A MIDDLE/UPPER LEVEL TROUGH COVERS THE AREA N OF 25N W OF 127W 
WITH THE AXIS ALONG 137W. THE TROUGH IS MOVING E ABOUT 20 KNOTS. 
ASSOCIATED COLD FRONT IS LOCATED THROUGH 32N137W TO BEYOND 
29N140W. WINDS BEHIND THE FRONT ARE LESS THAN 20 KNOTS WITH SEAS 
11 TO 17 FEET IN NW SWELL. DOWNSTREAM...A BROAD MIDDLE/UPPER 
LEVEL RIDGE IS LOCATED N OF ABOUT 25N E OF 124W. TO THE SOUTH A 
WELL-DEFINED JET STREAM IS LOCATED THROUGH 19N140W TO 25N125W 
AND THEN WEAKENS AS IT MOVES ACROSS THE CENTRAL BAJA CALIFORNIA 
PENINSULA. SATELLITE CLOUD DRIFT WINDS ALONG THE JET ARE IN THE 
70 TO 80 KNOT RANGE. SOUTHWESTERLY WINDS ALOFT LIE UP TO 12 
DEGREES S OF THE JET. AT THE SURFACE...NORTHEASTERLY TRADE WINDS 
FROM 20 TO 25 KNOTS AND SEAS 8 TO 11 FEET WILL PERSIST FOR THE 
NEXT TWO DAYS OVER THE AREA FROM ABOUT 06N TO 20N W OF 120W. A 
SURFACE TROUGH IS LOCATED ALONG 128W FROM 03N TO 09N.

E OF 105W...
LIGHT TO OCCASIONAL MODERATE EASTERLY WINDS ALOFT ARE LOCATED S 
OF 10N TO THE EQUATOR. N OF 10N WINDS ALOFT ARE SOUTHWESTERLY 
WITH SPEEDS 30 TO 40 KNOTS. IN 42 HOURS A GALE WARNING IS 
FORECAST FOR THE GULF OF TEHUANTEPEC. GULF OF PAPAGAYO WINDS ARE 
NE TO E 20 TO 25 KNOTS.

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

$$
CAB