000
AXPZ20 KNHC 132121
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC MON MAR 13 2006

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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1545 UTC.

...ITCZ...
ITCZ AXIS ALONG 6N78W 5N125W 2N140W. 
ISOLATED MODERATE CONVECTION WITHIN 60 NM OF AXIS E OF 98W AND 
BETWEEN 125W AND 135W. 

...DISCUSSION...
  UPPER SHORTWAVE TROUGH EXTENDS FROM  32N140W TO  5N128W.  A 
BAND OF UPPER DRY AIR IS INDICATED WITHIN 120 NM EITHER SIDE OF 
LINE 34N115W 30N134W 24N144W AND ALSO WITHIN 120 NM EITHER SIDE 
OF THE TROUGH AXIS S OF 22N. UPPER DIFFLUENCE JUST E OF THE 
TROUGH BASE IS ENHANCING CONVECTION ALONG THE ITCZ NEAR 5N130W.
AN UPPER TROPICAL ANTICYCLONE IS CENTERED NEAR 7N96W WITH A 
RIDGE EXTENDING NW AND CRESTING GENTLY ALONG 20N135W 27N122W 
29N110W. UPPER DEBRIS MOISTURE IS NOTED WITHIN 420 NM EITHER 
SIDE OF LINE FROM 18N133W TO 25N110W. DRY UPPER AIR AND 
SUBSIDENCE IS INDICATED SE OF LINE 10N125W 20N100W 24N80W WITH 
ISOLATED CONVECTION ENHANCED ALONG THE ITCZ ROUGHLY IN PHASE 
WITH THE UPPER RIDGE AXIS.
NLY WINDS 20-25 KT INDICATED IN THE GULF OF PAPAGAYO AND 
EXPECTED TO CONTINUE THROUGH 48 HOURS.

$$
FET