000
AXPZ20 KNHC 222141
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC THU JUN 22 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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2130 UTC.

...TROPICAL WAVES...
TROPICAL WAVE ALONG 92W FROM 5N TO 14N MOVING W 10 KT BASED ON A 
24 HOUR MOTION. NO SIGNIFICANT CONVECTION IS ASSOCIATED WITH 
THIS WAVE. 

TROPICAL WAVE ALONG 113W/114W FROM 4N 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 122W FROM 5N TO 14N MOVING W 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 9N83W 9N93W 7N107W 12N118W 6N140W. 
SCATTERED MODERATE ISOLATED STRONG WITHIN 90 NM OF THE AXIS 
BETWEEN 83W AND 87W. SCATTERED MODERATE WITHIN 60-75 NM OF THE 
AXIS BETWEEN 119W AND 122W...BETWEEN 130W AND 132 AND W OF 138W. 

...DISCUSSION...
MID/UPPER LEVEL LOW HAS WEAKENED NEAR 31N141W. THE DISSIPATING 
LOW IS MOVING NORTH-NORTHWESTWARD AT 10 KT. 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 21N121W. 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 13N82W. RIDGE EXTENDS WESTWARD INTO THE 
EASTERN PACIFIC TO 11N100W. A VERY WEAK TROUGH THAT DIVIDES 
THE FLOW BETWEEN THE TWO RIDGES LIES ALONG 17N108W 10N106W 
TO 6N104W. 

AT THE SURFACE...A BROAD LOW IS SEEN NEAR 14N122W AND IT 
CONTINUES TO MOVE SLOWLY WNW. THIS IS THE SAME LOW THAT HAS BEEN 
TRACKED FOR ABOUT A WEEK. 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 DAY OR 
TWO.

$$
COBB