000
AXPZ20 KNHC 080329
TWDEP 

TROPICAL WEATHER DISCUSSION  
NWS NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU MAR 08 2012

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 0300 UTC.

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

THE ITCZ IS TO THE SOUTH OF THE EQUATOR. NO SIGNIFICANT 
CONVECTION.

...DISCUSSION...

AN UPPER LEVEL RIDGE IS OVER THE NW REGION N OF 20N W OF 135W. 
AN UPPER LEVEL TROUGH IS FURTHER E...N OF 20N BETWEEN 110W AND 
135W MOVING E. IN THE TROPICS A LARGE UPPER LEVEL HIGH IS 
CENTERED NEAR 10N100W. RIDGING EXTENDS INTO MEXICO AND COVERS 
THE AREA E OF 120W. STRONG UPPER LEVEL SUBSIDENCE COVERS THE 
ENTIRE EASTERN PACIFIC SUPPRESSING DEEP CONVECTION. EXPECT THE 
UPPER LEVEL HIGH TO BE QUASI-STATIONARY FOR THE NEXT 48 HOURS.  

AT THE SURFACE...A 1040 MB HIGH IS CENTERED N OF THE AREA NEAR 
41N132W. FURTHER SE...THE TAIL END OF A COLD FRONT EXTENDS FROM 
SW NEW MEXICO TO THE N GULF OF CALIFORNIA AT 30N114W AND IS 
MOVING E. 20 KT NW WINDS ARE N OF THE FRONT. FRESH NORTHERLY 
FLOW WILL SPREAD ACROSS THE AREA BEHIND THE FRONT DOWN THE SPINE 
OF THE GULF TONIGHT. WINDS WILL INCREASE THU TO 25 KT AND 
PERSIST THROUGH FRI AS HIGH PRESSURE BUILDS OVER THE GREAT BASIN 
TO THE NORTH.

GAP WINDS...

GULF OF TEHUANTEPEC...20 TO 25 KT WINDS ARE OVER THE GULF OF 
TEHUANTEPEC WITH SEAS TO 8 FT. WINDS WILL BE LESS THAN 20 KT AND 
SEAS WILL BE LESS THAN 8 FT ON FRI. 

GULF OF PAPAGAYO...20 TO 25 KT WINDS ARE OVER THE GULF OF 
PAPAGAYO WITH SEAS TO 8 FT. A LARGE AREA OF 10 TO 12 FT NE SWELL 
PERSISTS IN THE TROPICAL NORTH PACIFIC TO THE EAST OF 110W DUE 
TO THE COMBINED INFLUENCE OF THE PAST TEHUANTEPEC AND PAPAGAYO 
GAP WINDS EVENTS. WINDS WILL INCREASE OVER THE GULF OF PAPAGAYO 
TO 30 KT THU AND DROP DOWN TO 25 KT ON FRI.  

GULF OF PANAMA...STRONG TRADE WINDS IN THE SOUTHWESTERN 
CARIBBEAN SEA WILL MAINTAIN SPURTS OF FRESH NORTHERLY FLOW 
ACROSS THE PANAMA ISTHMUS AND INTO THE BAY OF PANAMA THROUGH THE 
REMAINDER OF THE WEEK. 

$$
FORMOSA