000
AXPZ20 KNHC 082155
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC THU MAR 08 2007

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN FROM 
THE EQUATOR TO 32N...EAST OF 140W. THE FOLLOWING INFORMATION IS 
BASED ON SATELLITE IMAGERY...WEATHER OBSERVATIONS...RADAR...AND 
METEOROLOGICAL ANALYSIS.

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2045 UTC.

...ITCZ...
EQUATOR AT 81W  4N90W  5N120W  
3N140W.  SCATTERED MODERATE ISOLATED STRONG 30 NM N OF AXIS FROM 
82W TO 92W AND WITHIN 120 NM N OF AXIS FROM 98W TO 134W.

...DISCUSSION...
UPPER TROUGH FROM 32N108W TO 8N132W. JET WITH SW 70 KT WINDS IS 
WITHIN 60 NM SE OF THE TROUGH. EXTENSIVE TROPICAL MOISTURE  IS 
WITHIN 300 NM SE OF THE TROUGH  ADVECTING INTO MEXICO AND THE SW 
US. UPPER LEVEL RIDGE BUILDING W OF TROUGH OVER FAR NW PORTION 
OF AREA MAINTAIN MOIST ANTICYCLONIC FLOW N OF 17N W OF TROUGH.  
THAT LEAVES SWATH OF 5 DEG EITHER SIDE OF TROUGH AXIS AS ONLY 
DRY SLOT W OF 103W.  MID/UPPER LEVEL RIDGE CENTERED OVER ERN 
CARIBBEAN PROVIDES MODERATE SUBSIDENCE TO DRY E PAC N OF 8N E OF 
103W...SRN HALF OF GULF OF MEXICO AND ENTIRE CARIBBEAN SEA WITH 
DRY AIR MASS. 
HIGH PRES 33N132W EXTENDS RIDGE SE TO 10N106W MAINTAINING FRESH 
BREEZE ON TRADES W OF 130W N OF ITCZ AND CURTAILING VERTICAL 
DEVELOPMENT OF CLOUDS UNDER ITS COVERAGE.


$$
WALLY BARNES