000
AXPZ20 KNHC 070323
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC SUN AUG 07 2011

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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0245 UTC.

...ITCZ/MONSOON TROUGH...

MONSOON TROUGH FROM 10N85W TO 11N92W TO 11N102W TO 09N116W THEN 
ITCZ TO 09N126W TO 12N131W TO 12N140W. ISOLATED TO SCATTERED 
MODERATE CONVECTION WAS NOTED WITHIN 150 NM S OF AXIS BETWEEN 
90W AND 113W. 

...DISCUSSION...

BASED ON EARLIER ASCAT PASS THE REMNANT LOW OF EUGENE IS 
PRODUCING GALE FORCE WINDS. THUS...A GALE WARNING IS IN EFFECT 
WITHIN 60 NM N SEMICIRCLE OF THE CENTER OF THE LOW. THE GALE 
FORCE WINDS ARE EXPECTED TO DIMINISH BELOW 35 KNOTS BY SUN 
MORNING. FOR ADDITIONAL INFORMATION REFER TO THE HIGH SEAS UNDER 
AWIPS/WMO HEADERS MIAHSFEP2/FZPN03 KNHC. SATELLITE IMAGERY 
INDICATES THAT SOME LOW TOPPED CONVECTION CONTINUES AROUND THE 
LOW LEVEL CIRCULATION CENTER. THIS CONVECTION SHOULD DISSIPATE 
OVER THE NEXT 24 HOURS AS THE REMNANT LOW CONTINUES TO MOVE 
WESTWARD OVER INCREASINGLY COLDER WATERS.

A 1037 MB HIGH PRES IS CENTERED WELL NW OF THE FORECAST AREA 
NEAR 40N149W WITH AN ASSOCIATED RIDGE EXTENDING SE TO 25N123W. 
THE PRES GRADIENT BETWEEN THE RIDGE AND THE REMNANT LOW OF 
EUGENE IS RESULTING IN AN AREA OF FRESH 20 KT NE WINDS N OF 25N 
W OF 133W. 

CROSS-EQUATORIAL SOUTHERLY SWELL CONTINUES TO PROPAGATE ACROSS 
THE REGIONAL WATERS MAINLY S OF 10N AND W OF 95W BUILDING SEAS 
TO 9 FT. THIS SWELL WILL GRADUALLY DECAY AND BECOME CONFINED TO 
W OF 100W IN 24 HOURS...THEN TO W OF 103W IN 48 HOURS.

$$
AL