000
AXPZ20 KNHC 190344
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI MAR 19 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...
AXIS ALONG 00N80W TO 06N94W TO 04N103W TO 08N110W TO 03N126W TO 
02N140W.  SCATTERED MODERATE ISOLATED STRONG CONVECTION FROM 05N 
TO 08N BETWEEN 113W AND 119W AND FROM 00N TO 06N BETWEEN 120W 
AND 127W.

...DISCUSSION...
W OF 110W...
A MIDDLE/UPPER LEVEL TROUGH IS APPROACHING THE NW PART OF THE 
DISCUSSION AREA FROM THE W WITH INCREASING SW WINDS OVER THE 
AREA N OF 25N W OF 135W. THE COLD FRONT WILL ENTER THE AREA IN 
18 HOURS WITH NW TO N WINDS 20 TO 25 KT AND SEAS 8 TO 11 FEET 
BEHIND THE FRONT. DOWNSTREAM FLOW BECOMES NEARLY ZONAL IN THE 
AREA N OF ABOUT 15N BETWEEN 120W AND 135W. WESTERLY FLOW IS 
FAIRLY STRONG IN THIS AREA WITH SATELLITE CLOUD DRIFT WINDS 
INDICATING SPEEDS OF 70 TO 80 KNOTS. A WEAK MIDDLE/UPPER LEVEL 
TROUGH IS LOCATED OVER BAJA CALIFORNIA AND IS MOVING ESE ABOUT 
20 KNOTS. WATER VAPOR IMAGERY SHOWS STRONG SUBSIDENCE OVER A 
LARGE AREA N OF ABOUT 15N W OF 110W. LIGHT VARIABLE WINDS ALOFT 
ARE LOCATED OVER THE DEEP TROPICS S OF ABOUT 10N TO THE EQUATOR. 
AT THE SURFACE A TROUGH IS LOCATED ALONG 111W/112W. NORTHEAST TO 
E 20 KNOT TRADE WINDS ARE LOCATED FROM 05N TO 15N W OF 125W WITH 
SEAS 10 TO 12 FEET IN NW SWELL. A RIDGE AXIS IS LOCATED THROUGH 
32N133W TO 21N134W.

E OF 110W...
FLOW ALOFT N OF 08N E OF 110W IS SOUTHWESTERLY TO WESTERLY WITH 
SPEEDS UP TO 40 KNOTS. FURTHER S TO THE EQUATOR SE TO S WINDS 
ALOFT ARE LIGHTER. OVER THE GULF OF TEHUANTEPEC N TO NE WINDS 
ARE IN THE 20 TO 30 KNOT RANGE WITH SEAS 8 TO 11 FT. GULF OF 
PAPAGAYO WINDS WILL BE IN THE 20 TO 25 KNOT RANGE FOR THE NEXT 
24 HOURS AND THEN WEAKEN SLIGHTLY.

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

$$
CAB