000
AXPZ20 KNHC 070922
TWDEP 

TROPICAL WEATHER DISCUSSION      
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC MON MAY 07 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 O600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH ALONG 10N86W TO 9N98W. ITCZ EXTENDS FROM 9N98W 
10N115W 4N125W TO 4N140W. SCATTERED MODERATE TO STRONG 
CONVECTION WITHIN 120 NM N AND 240 NM S OF AXIS FROM 105W-114W.

...DISCUSSION...
AN UPPER LEVEL TROUGH WITH AXIS FROM NORTHERN BAJA CALIFORNIA TO 
26N134W. AN UPPER LEVEL RIDGE IS NW OF THE TROUGH. ANOTHER BROAD 
UPPER RIDGE FROM 25N133W TO 15N125W. OTHERWISE MOSTLY ZONAL WLY 
UPPER LEVEL FLOW S OF THE TROUGH TO 15N. EXCEPT FOR A FEW HIGH 
CLOUDS FROM 17N-22N W OF 120W MODERATE TO STRONG SUBSIDENCE WITH 
DRY STABLE AIR AT THE MIDDLE LEVELS IS N OF 15N W OF 105W. A 
70-90 KT JETSTREAM EXTENDS FROM 24N127W ACROSS THE SOUTHERN HALF 
OF BAJA CALIFORNIA INTO NW MEXICO. IN THE DEEP TROPICS AN EAST 
TO WEST UPPER LEVEL RIDGE EXTENDS FROM PANAMA TO 10N110W. AN 
EMBEDDED ANTICYCLONIC CIRCULATION WITHIN THE RIDGE AXIS IS 
CENTERED NEAR 10N94.

HIGH PRES N OF THE AREA WILL CONTINUE N-NE WINDS 20 KT N OF 
AROUND 20N W OF 125W. LARGE NW SWELLS TO 1O FT HAVE PROPAGATED 
INTO THE AREA N OF 27N BETWEEN 121W-130W. TRADES AROUND THE 
SOUTHERN PERIPHERY OF THE RIDGE HAVE TO 20 KT FROM 7N-20N W OF 
130W.

$$
DGS