000
AXPZ20 KNHC 231005
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC TUE MAY 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...TROPICAL WAVES...
A TROPICAL WAVE IS ALONG 93W TO THE S OF 14N AND HAS MOVED W AT 
12 KT THE PAST 24 HOURS. THE WAVE IS EMBEDDED IN A BROAD AREA OF 
LOW PRES THAT COVERS THE AREA FROM ROUGHLY 3N TO 13N BETWEEN 
103W AND 83W. SEVERAL OTHER CYCLONIC SWIRLS ARE NOTED ON IMAGERY 
INCLUDING ONE NEAR 11N99W THAT IS ANALYZED AS A SURFACE LOW PRES 
1009 MB BUT IS DISORGANIZED. CURRENTLY SCATTERED MODERATE 
ISOLATED STRONG CONVECTION OBSERVED WITHIN 90 NM OF 12N94W.

...ITCZ...
ITCZ AXIS ALONG 13N88W 13N95W 9N101W 9N119W 6N140W. SCATTERED 
MODERATE ISOLATED STRONG WITHIN 180 NM OF AXIS BETWEEN 83W AND 
119W. 

...DISCUSSION...
A DEEP LAYERED CYCLONE IS N OF AREA NEAR 48N138W WITH A 
SHORTWAVE TROUGH EXTENDING SW TO THE HAWAIIAN ISLANDS. A SURFACE 
FRONT LIES E TO W ALONG 32N BETWEEN 130W AND 143W AND IS 
FORECAST TO WEAK TO A TROUGH IN 24 HOURS. AN UPPER ANTICYCLONE 
IS NEAR 14N110W WITH A RIDGE EXTENDING N THROUGH ANOTHER 
ANTICYCLONE NEAR 29N107W.

A LARGE AREA OF UPPER DRY AIR IS NOTED N OF 20N BETWEEN 147W AND 
101W EXCEPT FOR A THIN MOISTURE PLUME NOTED ALONG 14N125W 
21N116W 23N102W.

A CUT OFF CYCLONE IS OVER THE SW GULF OF MEXICO NEAR 23N93W WITH 
AN UPPER TROUGH S TO NEAR 13N97W. A BAND OF DRY UPPER AIR IS 
INDICATED WITHIN 300 NM EITHER SIDE OF LINE 22N95W 12N112W. 

AN UPPER ANTICYCLONE IS NEAR 16N83W. AN UPPER CYCLONE IS OVER 
COLOMBIA AT 5N76W. DEBRIS MOISTURE FROM ITCZ CONVECTION BETWEEN 
81W AND 97W IS ADVECTED N ACROSS CENTRAL AMERICA BETWEEN 87W AND 
94W THEN TURNS NE ACROSS THE EASTERN GULF OF MEXICO AND FLORIDA.

$$
NELSON