000
AXPZ20 KNHC 132204
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC TUE MAY 13 2008

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN
FROM THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY
THROUGH 2130 UTC.

...ITCZ...

06N77W 05N80W 06N87W 05N94W 07N101W 05N113W 06N130W 05N140W. 
SCATTERED TO NUMEROUS STRONG THUNDERSTORMS FROM 13N TO 15N 
BETWEEN 104W AND 106W. SCATTERED MODERATE SHOWERS TO ISOLATED 
STRONG THUNDERSTORMS WITHIN A 15 TO 30 NM RADIUS OF 06N79W...
FROM 1N TO 4N BETWEEN 111W AND 113W...FROM 09N TO 10N BETWEEN 
114W AND 116W...AND FROM 11N TO 13N BETWEEN 127W AND 128W.

...DISCUSSION...

A MIDDLE TO UPPER LEVEL TROUGH EXTENDS FROM A SOUTH CENTRAL 
ARIZONA CYCLONIC CIRCULATION CENTER NEAR 34N112W TO 24N120W AND
TO 18N118W. A SHEAR AXIS CONTINUES WESTWARD FROM 18N118W TO
25N137W. A CUT-OFF MIDDLE TO UPPER LEVEL CYCLONIC CIRCULATION 
CENTER IS NEAR 22N147W...ABOUT 440 NM EAST-NORTHEAST OF HAWAII.
UPPER LEVEL MOISTURE ON THE EASTERN SIDE OF THE 24N120W 18N118W 
TROUGH MOVES ACROSS THE SOUTHERN PART OF THE BAJA CALIFORNIA 
BEYOND NORTHERN MEXICO. AN UPPER LEVEL RIDGE IS ALONG 130W
FROM 10N TO 23N.

BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS AREA NORTH OF 
30N BETWEEN 120W AND 140W...WITH AN ANTICYCLONIC CIRCULATION 
CENTER NEAR 34N131W.

BROAD UPPER LEVEL ANTICYCLONIC WIND FLOW COVERS THE AREA
NORTH OF 10N EAST OF 110W.

SURFACE TROUGH IS ALONG 104W/105W FROM 11N TO 15N. SCATTERED
TO NUMEROUS STRONG THUNDERSTORMS FROM 13N TO 15N BETWEEN
104W AND 106W.

A SEPARATE SURFACE TROUGH IS ALONG 104W/105W FROM 03N TO 09N.
NO ORGANIZED CONVECTIVE PRECIPITATION ACCOMPANIES THIS TROUGH.

A SURFACE TROUGH IS ALONG 130W/131W FROM 4N TO 10N. NO ORGANIZED 
CONVECTIVE PRECIPITATION ACCOMPANIES THIS TROUGH.

$$
MT