000
AXPZ20 KNHC 010924
TWDEP 

TROPICAL WEATHER DISCUSSION 
NWS NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SUN JUL 01 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 0600 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0900 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
MONSOON TROUGH AXIS FROM 8N78W TO 7N93W. ITCZ AXIS FROM 7N93W TO 
7N120W 6N140W. SCATTERED MODERATE TO STRONG CONVECTION WITHIN 
200 NM S OF AXIS FROM 118W-123W.

...DISCUSSION...
AN UPPER LEVEL TROUGH OVER THE FAR NW PORTION OF THE DISCUSSION 
AREA WITH AXIS FROM 32N130W TO 28N140W. UPPER LEVEL ANTICYCLONIC 
CIRCULATION IS OFF SOUTHERN BAJA CALIFORNIA CENTERED NEAR 
23N117W WITH RIDGE W TO 22N140W AND ANOTHER RIDGE EXTEND SW OF 
THE ANTICYCLONE TO 11N135W. AN UPPER LEVEL INVERTED TROUGH 
BETWEEN THE TWO RIDGESEXTENDS FROM A CYCLONIC CIRCULATION NEAR 
16N125W TO 21N133W. STRONG SUBSIDENCE WITH DRY/STABLE AIR AT THE 
MIDDLE AND UPPER LEVELS IS N OF 15N W OF 110W. AN UPPER LEVEL 
CYCLONIC CIRCULATION OS OVER GUATEMALA. DIFFLUENT FLOW OF THE 
CIRCULATION IS ENHANCING CONVECTION FROM 5N-15N BETWEEN 85W-105W.

SURFACE HIGH PRES RIDGE IS N OF 20N W OF 110W. THE RIDGE 
COMBINED WITH LOWER PRES ACROSS MEXICO IS PRODUCING A TIGHT 
ENOUGH PRES GRADIENT FOR NW WINDS 20 KT ALONG THE BAJA 
CALIFORNIA COAST N OF 28N OUT TO 118W.

ELY WINDS TO 20 KT CONTINUE TO BLOW THROUGH THE GULF OF PAPAGAYO
AND ARE EXPECTED TO CONTINUE THROUGH TUE.

A TROPICAL WAVE ALONG 96W FROM 7N-13N. SCATTERED SHOWERS ARE 
ALONG THE WAVE.
      
$$
DGS