000
AXPZ20 KNHC 272127
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC SAT MAR 27 2010

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

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...ITCZ...

THE ITCZ AXIS IS ANALYZED ALONG 05N77W TO 06N95W TO 07N111W TO 
06N126W TO 03N140W. SCATTERED STRONG CONVECTION IS LOCATED 
WITHIN 90 NM EITHER SIDE OF A LINE FROM 06.5N126W TO 03N133W TO 
02N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED FROM 07.5N TO 10.5N BETWEEN 110W AND 115W AND WITHIN A 
90 NM RADIUS OF 07N120W. 

...DISCUSSION...

W OF 105W...
A MIDDLE/UPPER LEVEL TROUGH COVERS THE AREA N OF 25N W OF 128W 
WITH THE AXIS ALONG 139W. THE TROUGH IS MOVING E ABOUT 20 KNOTS. 
ASSOCIATED COLD FRONT IS LOCATED THROUGH 32N138W TO BEYOND 
30N142W. 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 125W. TO THE SOUTH A 
WELL-DEFINED JET STREAM IS LOCATED THROUGH 19N140W TO 24N130W 
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 12 FEET WILL PERSIST FOR THE 
NEXT TWO DAYS OVER THE AREA FROM ABOUT 05N TO 20N W OF 120W. 
SURFACE TROUGHS ARE LOCATED ALONG 112W FROM 04N TO 10N AND ALONG 
128W FROM 04N TO 10N.

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 48 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