000
AXPZ20 KNHC 060400
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
0405 UTC THU DEC 6 2007

TROPICAL WEATHER DISCUSSION FOR THE EASTERN PACIFIC OCEAN
FROM THE EQUATOR TO 32N...EAST OF 140W. 

BASED ON 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0300 UTC.
 
...ITCZ...
INTERTROPICAL CONVERGENCE ZONE AXIS IS ALONG 8N83W 8N106W 7N114W 
9N122W 7N140W. ISOLATED CONVECTION ALONG ITCZ AXIS.

...DISCUSSION...
UPPER LEVELS CHARACTERIZED BY SEVERAL CYCLONIC CIRCULATIONS SPREAD 
ACROSS THE DISCUSSION AREA. WATER VAPOR IMAGERY SHOWS FOUR DISTINCT 
UPPER LOWS CENTERED NEAR 23N102W...23N117W...22N138W AND 12N136W. AS 
A RESULT...UPPER LEVEL WINDS OVER THE ENTIRE BASIN ARE BROKEN UP AND 
RELATIVELY LIGHT. THE SUBTROPICAL JET IS DISPLACED UNSEASONABLY FAR 
N OF THE AREA. DESPITE LIGHT WINDS AND FAVORABLE DIVERGENCE ALOFT... 
CONVECTIVE ACTIVITY IS MINIMAL. 

AT THE SURFACE...SUBTROPICAL RIDGE ANCHORED BY 1023 MB HIGH PRES 
NEAR 28N133W DOMINATES NW PORTION OF THE AREA. HIGH WILL WEAKEN 
DURING THE NEXT FEW DAYS AS COLD FRONT PLOWING INTO SRN CALIFORNIA 
DIPS S OF 30N FRI.

LARGE NW SWELLS OF UP TO 17 FT OBSERVED OVER MOST OF THE AREA...NW OF
A LINE FROM 24N111W TO EQ135W. SWELLS WILL CONTINUE TO SPREAD SE AND 
SUBSIDE THROUGH 48 HOURS...IMPACTING MOST OF THE AREA NORTH OF THE 
EQUATOR AND WEST OF 105W.

$$
MUNDELL