000
AXPZ20 KNHC 010328
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN JUN 01 2008

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

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.

...ITCZ...

ITCZ AXIS ALONG AXIS 13N88W TO 04N110W TO 05N120W TO 05N130W TO 
04N140W. SCATTERED MODERATE ISOLATED STRONG CONVECTION IS 
LOCATED FROM 11N TO 16N BETWEEN 91W AND 99W. 

...DISCUSSION...

W OF 100W...
A MIDDLE/UPPER LEVEL TROUGH COVERS THE AREA N OF 25N W OF 125W 
WITH THE AXIS ALONG 132W. THE TROUGH IS MOVING E ABOUT 10 KNOTS. 
AN ASSOCIATED SURFACE TROUGH EXTENDS THROUGH 32N138W TO BEYOND 
29N142W. A MIDDLE/UPPER LEVEL CYCLONIC CIRCULATION IS CENTERED 
NEAR 17N113W...MOVING NW ABOUT 10 KNOTS. THE CIRCULATION IS 
ABOUT 12 DEGREES IN DIAMETER WITH THE STRONGEST WINDS...TO 40 
KNOTS...LOCATED OVER THE NE QUADRANT. IN BETWEEN THE ABOVE TWO 
FEATURES A RIDGE AXIS ALOFT EXTENDS FROM ABOUT 28N105W TO NEAR 
20N130W. A BAND OF MODERATE SOUTHWESTERLY WINDS ALOFT EXTENDS 
FROM 22N128W INTO SOUTHERN CALIFORNIA WITH SATELLITE CLOUD DRIFT 
WINDS INDICATING WINDS IN THE 50 TO 60 KNOT RANGE. A WESTERLY 
JET STREAM IN THE DEEP TROPICS IS LOCATED THROUGH 13N140W TO 
NEAR 10N132W. AT THE SURFACE 20 TO 25 KNOT NW TO N WINDS ARE 
LOCATED N OF 23N E OF 120W. SEAS ARE 8 TO 10 FT. WINDS WILL 
CONTINUE FROM 20 TO 25 KNOTS OVER THE NEXT 48 HOURS. 

E OF 100W...
TROPICAL STORM ARTHUR IS LOCATED OVER LAND NEAR 18.4N89.5W AT 
0300Z AND IS CROSSING THE SOUTHERN YUCATAN PENINSULA. ARTHUR IS 
FORECAST TO MOVE INTO THE SOUTHERN BAY OF CAMPECHE. THE DEEPEST 
CONVECTION IS LOCATED OVER THE NORTHERN TWO-THIRDS OF GUATEMALA 
AND OVER MEXICO FROM 15N TO 18N BETWEEN 92W AND 95W. MODERATE 
EASTERLY WINDS ALOFT COVER MOST THE EASTERN PART OF THE 
DISCUSSION AREA S OF 12N. 

$$
CAB