000
AXPZ20 KNHC 280910
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL 
1005 UTC WED MAY 28 2014

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 
0830 UTC.

...SPECIAL FEATURES...

TROPICAL STORM AMANDA IS CENTERED NEAR 14.6N 112.4W AT 28/0900 
UTC MOVING NE AT 2 KT. MAXIMUM SUSTAINED WIND SPEED IS 60 KT 
WITH GUSTS TO 75 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 992 
MB. NUMEROUS STRONG CONVECTION IS FROM 14N TO 17N BETWEEN 111W 
AND 114W. SCATTERED MODERATE TO STRONG CONVECTION COVERS THE 
REMAINDER OF THE AREA FROM 13N TO 18N BETWEEN 110W AND 115W. 
CONTINUED WEAKENING IS FORECAST DURING THE NEXT 48 HOURS AND 
AMANDA IS EXPECTED TO WEAKEN TO A TROPICAL DEPRESSION BY THU 
EVENING. PLEASE SEE LATEST NHC FORECAST/ADVISORY UNDER AWIPS/WMO 
HEADERS MIATCMEP1/WTPZ21 KNHC FOR MORE DETAILS.
  
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...           
MONSOON TROUGH EXTENDS FROM 6N77W TO 8N86W TO 13N98W THEN 
RESUMES SW OF T.S. AMANDA NEAR 9N116W TO 7N120W TO 9N126W TO A 
1009 MB LOW NEAR 9N128W TO 4N133W WHERE THE ITCZ AXIS BEGINS AND 
CONTINUES TO BEYOND 05N140W. CLUSTERS OF SCATTERED MODERATE TO 
ISOLATED STRONG CONVECTION ARE WITHIN 120 NM N OF THE MONSOON 
TROUGH E OF 87W TO INLAND OVER COLOMBIA AND WITHIN 90 NM EITHER 
SIDE OF THE MONSOON TROUGH BETWEEN 121W AND 125W. SCATTERED TO 
NUMEROUS STRONG CONVECTION IS WITHIN 90 NM ALONG THE COAST OF 
GUATEMALA AND S MEXICO BETWEEN 92W AND 96W. SCATTERED STRONG 
CONVECTION IS WITHIN 90 NM ALONG THE COAST OF MEXICO S OF 22N W 
OF 98W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS FROM 
8N TO 10N BETWEEN 108W AND 112W. 

...DISCUSSION...     

STRONG 1038 MB SURFACE HIGH PRES IS LOCATED WELL NW OF THE 
DISCUSSION AREA NEAR 43N146W WITH A RIDGE EXTENDING SE THROUGH 
32N133W TO 22N122W. A TIGHT PRES GRADIENT EXISTS ON THE E-SE 
SIDE OF THE RIDGE WITH A GALE ALONG THE NORTHERN COAST OF 
CALIFORNIA. 

FRESH N-NE WINDS CURRENTLY DIP INTO THE FAR N CENTRAL DISCUSSION 
WATERS WITH ASSOCIATED 8 TO 9 FT SEAS MIXING WITH LONG PERIOD 
SOUTHERLY SWELL N OF A LINE FROM 30N120W TO 24N130W TO 24N134W. 
THE AREA OF FRESH N-NE WINDS WHICH MAY BRIEFLY INCREASE LOCALLY 
TO STRONG WITH SEAS OF 8-11 FT SPREADING TO THE SW THROUGH THE 
NEXT 24-48 HOURS.

WEAK 1009 MB LOW IS EMBEDDED IN THE MONSOON TROUGH NEAR 9N128W. 
THE LOW IS CURRENTLY STATIONARY HOWEVER IT IS FORECAST TO BEGIN 
MOVING W AT 5-10 KT DURING THE NEXT FEW DAYS. 

BY THU AFTERNOON...SW SWELL TO 8 FT WILL APPROACH THE EQUATOR 
WHILE COVERING THE WATERS S OF 01.5S BETWEEN 91W AND 107W BY THU 
EVENING.
 
$$
PAW