000
AXPZ20 KNHC 160924
TWDEP 

TROPICAL WEATHER DISCUSSION        
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
1005 UTC SUN FEB 16 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 
0900 UTC.                              

...SPECIAL FEATURES...

GULF OF TEHUANTEPEC GALE WARNING...THE PRESSURE GRADIENT ACROSS 
SOUTHERN MEXICO IS TIGHT ENOUGH FOR WINDS TO MINIMAL GALE FORCE 
IN THE IMMEDIATE GULF OF TEHUANTEPEC PERSISTING INTO THIS 
MORNING THEN DECREASE TO BELOW GALE FORCE THIS AFTERNOON. SEAS 
WILL BUILD TO 9-11 FT AS THE WINDS STRENGTHEN. WINDS WILL 
DIMINISH TO 20 KT OR LESS MON.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...              

MONSOON TROUGH FROM 6N77W TO 4N98W. ITCZ FROM 4N98W TO 7N130W TO 
8N140W. NO SIGNIFICANT CONVECTION.

...DISCUSSION...

AN UPPER LEVEL RIDGE OVER THE NW PORTION OF THE DISCUSSION AREA 
HAS FLATTENED AS A SHORT WAVE MOVES TROUGH N OF 25N ALONG 35W. 
THE RIDGE AXIS EXTENDS FROM 25N125W TO 15N140W. A SHARP UPPER AN 
UPPER LEVEL TROUGH IS E OF THE RIDGE WITH AXIS FROM 22N1122W TO 
A CYCLONIC CIRCULATION NEAR 12N124W THE TROUGH CONTINUES TO 
5N125W. ABUNDANT UPPER LEVEL MOISTURE IS WITHIN 300 NM E OF THE 
TROUGH N OF 10N. THE UPPER LEVEL WINDS E OF THE TROUGH ARE 
ADVECTING THE HIGH LEVEL MOISTURE INTO SOUTHERN BAJA CALIFORNIA 
AND INTO NW MEXICO. A BROAD UPPER LEVEL RIDGE E OF THE TROUGH. 
AN AREA OF STRONG SUBSIDENCE WITH DRY AND STABLE AIR AT THE 
MIDDLE AND UPPER LEVELS IS S OF 20N E OF 115W.

ELY WINDS 20-25 KT WILL CONTINUE THROUGH THE GULF OF PAPAGAYO 
THROUGH MON. SEAS WILL BRIEFLY INCREASE TO 8-11 FT MON.

A COLD FRONT FROM 32N132W TO 26N140W IS WEAKENING...HOWEVER 
LARGE NW SWELLS ARE BEHIND THE FRONT. THE FRONT WILL DISSIPATE 
TONIGHT...HOWEVER THE LARGE SWELL WILL SPREAD SE.

$$
DGS