000
AXPZ20 KNHC 230317
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC FRI JUN 23 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0315 UTC.

...TROPICAL WAVES...
TROPICAL WAVE ALONG 94W FROM 5N TO 14N MOVING W 10-12 KT BASED 
ON A 24 HOUR MOTION. NO SIGNIFICANT CONVECTION IS ASSOCIATED 
WITH THIS WAVE. 

TROPICAL WAVE ALONG 114W/115W FROM 5N TO 13N MOVING W 10 KT ALSO 
BASED ON A 24 HOUR MOTION. ONLY ISOLATED SHOWERS/TSTMS ARE SEEN 
WITHIN ABOUT 240 NM E OF THE WAVE AXIS.

TROPICAL WAVE ALONG 123W FROM 5N TO 16N MOVING W 10 KT BASED ON 
A 24 HOUR MOTION. ONLY WIDELY SCATTERED SHOWERS/TSTMS ARE SEEN 
WITHIN 180 NM E OF THE WAVE AXIS ALONG THE ITCZ.

..ITCZ...
AXIS IS CENTERED ALONG 9N85W 9N94W 7N105W 12N122W 7N140W. 
SCATTERED MODERATE TO STRONG WITHIN 90 NM OF THE AXIS W OF 138W. 
SCATTERED MODERATE WITHIN 90-120 NM OF THE AXIS BETWEEN 127W AND 
133W. WIDELY SCATTERED MODERATE WITHIN 120 NM OF THE AXIS 
BETWEEN 93W AND 100W. 

...DISCUSSION...
MID/UPPER LEVEL LOW HAS SHEARED OUT TO THE NORTH NEAR 32N138W. 
DRY AIR AND SUBSIDENCE COVERS THE ENTIRE AREA N OF 20N W OF 110W 
AND S OF 20N W OF 127W. 

LARGE MID/UPPER LEVEL HIGH IS CENTERED NEAR 20N122W. RIDGE 
EXTENDS NORTHWARD ALONG 30N121W TO THE WEST COAST OF THE CONUS. 
THE RIDGE COVERS THE AREA N OF THE ITCZ BETWEEN 110W AND 130W.
 
ANOTHER LARGE MID/UPPER LEVEL HIGH IS CENTERED OVER THE SW 
CARIBBEAN SEA NEAR 13N83W. RIDGE EXTENDS WESTWARD INTO THE 
EASTERN PACIFIC TO 11N100W AND ALSO NWWD TO ANOTHER HIGH 
CENTERED OVER NORTHERN MEXICO NEAR 26N105W. A VERY WEAK TROUGH 
THAT DIVIDES THE FLOW BETWEEN THE TWO RIDGES EXTENDS FROM A 
CYCLONIC CIRCULATION NEAR 27N112W THROUGH 17N110W 10N109W TO 
6N105W. 

AT THE SURFACE...A BROAD LOW IS NOTED NEAR 14N123W AND IS 
MOVING SLOWLY W. THE CIRCULATION AROUND THE EASTERN SIDE OF THE 
LOW HAS PULLED THE ITCZ MUCH FARTHER NORTHWARD NEAR 120W. THE 
LOW IS MOVING INTO COOLER WATERS AND A MORE STABLE ENVIRONMENT 
AND IS EXPECTED TO DISSIPATE OVER THE NEXT 12-24 HOURS.

$$
COBB