000
AXPZ20 KNHC 090915
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE MAR 09 2010

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 
0900 UTC.

...ITCZ...
AXIS IS ALONG 1N79W 4N95W 3N100W 6N130W 3N140W. SCATTERED 
MODERATE ISOLATED STRONG WITHIN 180 NM N OF AXIS FROM 110W-113W.

...DISCUSSION...
A SHARPE UPPER LEVEL TROUGH OVER THE NW PORTION OF THE 
DISCUSSION AREA WITH AXIS FROM 32N126W TO 28N140W. SOME HIGH 
LEVEL MOISTURE IS WITHIN 120 NM SE OF THE TROUGH. A FLAT BROAD 
UPPER LEVEL RIDGE IS E AND SE OF THE TROUGH WITH MOSTLY ZONAL 
WLY FLOW. THE BROAD RIDGE AXIS EXTENDS FROM AN ANTICYCLONIC 
CIRCULATION CENTERED NEAR 9N107W N TO ACROSS WESTERN MEXICO.
A 125-150 KT JET STREAM ENTERS THE AREA AT 22N140W TO 27120W 
THEN NE ACROSS THE CENTRAL BAJA PENINSULA AND INTO NORTHERN 
MEXICO. BROKEN CIRRUS CLOUDS ARE WITHIN 360 NM SE OF THE JET 
AXIS W OF 125W. STRONG SUBSIDENCE WITH DRY AND STABLE AIR AT THE 
MIDDLE AND UPPER LEVELS OF THE ATMOSPHERE IS WITHIN 240 NM N OF 
THE JET AXIS. IN THE DEEP TROPICS AN UPPER LEVEL ANTICYCLONIC
CIRCULATION IS CENTERED NEAR 4N133W.

SURFACE HIGH PRES RIDGE COVERS THE AREA N OF 15N W OF 105W. FLOW 
AROUND THE PERIPHERY OF THE RIDGE IS PRODUCING BRISK TRADES FROM 
5N-25N W OF 115W. LARGE NW SWELLS COVER MUCH OF THE AREA W OF 
115W CONTINUE TO SLOWLY SUBSIDE AND ARE CURRENTLY AROUND 8 TO 11 
FT.

MODERATE TO STRONG WINDS IN THE 20 TO 25 KT RANGE ACROSS GULF OF 
PAPAGAYO AND GULF OF PANAMA. THE WINDS IN THE GULF OF PAPAGAYO 
DECREASE TO BELOW 20 KT THIS AFTERNOON AND IN THE GULF OF PANAMA 
AND WIND WILL DECREASE TONIGHT.

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

$$
DGS