000
AXPZ20 KNHC 300304
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN MAY 30 2010

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.

...SPECIAL FEATURE...
TROPICAL DEPRESSION AGATHA IS CENTERED INLAND OVER GUATEMALA NEAR 
14.9N92.0W WITH MAXIMUM SUSTAINED WINDS OF 30 KT AND MINIMUM CENTRAL 
PRESSURE OF 1003 MB. NUMEROUS MODERATE TO STRONG CONVECTION IS FROM 
13N TO 17N BETWEEN 88W AND 94W. AGATHA CONTINUES TO PRODUCE ABUNDANT 
HEAVY RAINFALL AND FLOODING INLAND OVER S MEXICO...GUATEMALA...AND 
EL SALVADOR...AND IS EXPECTED TO CONTINUE TO DO SO OVER THE NEXT 24 
HOURS.

...ITCZ...
AXIS IS ALONG 10N85W TO 11N95W TO 09N100W TO 08N110W TO 09N119W TO 
06N130W TO 07N140W. SCATTERED MODERATE CONVECTION IS FROM 06N TO 09N 
BETWEEN 110W AND 115W...FROM 07N TO 11N BETWEEN 117W AND 120W...AND 
FROM 05N TO 08N BETWEEN 135W AND 139W.

...DISCUSSION...
AN UPPER LEVEL TROUGH IS OVER THE NW PORTION OF THE DISCUSSION AREA 
N OF 20N BETWEEN 130W AND 140W. AN UPPER LEVEL RIDGE IS N OF 20N 
BETWEEN 117 AND 130W. AN UPPER LEVEL TROUGH IS N OF 24N OVER BAJA 
CALIFORNIA AND NW MEXICO BETWEEN 105W AND 117W. THE SUBTROPICAL 
50-70 KT JET EXTENDS ACROSS THE AREA FROM 18N140W ENE TO THE 
SOUTHERN TIP OF BAJA CALIFORNIA. IN THE DEEP TROPICS ANTICYCLONIC 
CIRCULATION IS CENTERED NEAR 10N131W WITH RIDGE FROM THE CIRCULATION 
ENE TO 14N117W. EASTERLY FLOW IS FROM EQUATOR TO 10N BETWEEN 77W AND 
117W.  

A 1028 MB HIGH IS CENTERED NEAR 35N134W WITH RIDGE EXTENDING SE TO 
18N115W. THE PRESSURE GRADIENT BETWEEN THIS RIDGE AND THE ITCZ IS 
PRODUCING 20 KT TRADES FROM 09N TO 15N W OF 130W. ADDITIONALLY THE 
PRES GRADIENT BETWEEN THE RIDGE AND TROUGHING OVER MEXICO IS 
PRODUCING 20 KT NW TO N WINDS AND 8 TO 10 FT SEAS ALONG THE W COAST 
OF BAJA CALIFORNIA. 

ANOTHER SW SWELL TRAIN IS PROPAGATING N OVER THE FORECAST AREA... 
CURRENTLY S OF 16N BETWEEN 95W AND 135W. IT IS EXPECTED TO CONTINUE 
TO SPREAD N OVER THE NEXT COUPLE OF DAYS. 

$$
FORMOSA