000
AXPZ20 KNHC 060920
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1005 UTC SAT JAN 6 2007

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.

...ITCZ...
AXIS IS CENTERED ALONG 6N77W 4N84W 6N100W 6N112W 3N130W 2N140W. 
SCATTERED MODERATE CONVECTION WITHIN 90 NM OF THE AXIS BETWEEN 
88W-110W. SCATTERED MODERATE FROM 3N-7N BETWEEN 111W-117W.

...DISCUSSION....

STRONG 1044 MB HIGH PRES REMAINS CENTERED JUST N OF THE AREA 
NEAR 36N138W AND CONTINUES TO PRODUCE GALE CONDITIONS WITHIN THE 
TRADE WINDS REGIME W OF 120W. THE COLD FRONT WHICH PRECEDED THE 
HIGH AND SURGED DOWN THE COAST OF BAJA CALIFORNIA IS BEGINNING 
TO DISSIPATE AND NOW EXTENDS FROM NEAR LOS MOCHIS MEXICO TO LA 
PAZ ON THE PENINSULA...THEN SW TO 20N120W. THE GRADIENT BEHIND 
THE FRONT SHOULD RELAX ENOUGH BY THIS AFTERNOON TO ALLOW WINDS 
TO FALL BELOW GALE FORCE...YET THEY SHOULD STILL REMAIN STRONG 
FOR A FEW DAYS. GALE CONDITIONS ARE ALSO CURRENTLY OCCURRING 
OVER THE GULF OF CALIFORNIA N OF 26N DUE TO THE GRADIENT BETWEEN 
A 1040 MB HIGH OVER NEVADA AND GENERAL LOW PRES TO THE S. WINDS 
HERE WILL REMAIN TO GALE FORCE FOR ANOTHER 24 HRS. 

FARTHER S...A MID/UPPER LOW IS CENTERED OVER THE OPEN PACIFIC 
WATERS NEAR 17N127W AND HAS BECOME CUT-OFF FROM THE MID-LATITUDE 
FLOW TO THE N. A LARGE AREA OF DIFFLUENCE TO THE E OF THE LOW IS 
PRODUCING WIDESPREAD HIGH CLOUDINESS ALMOST ALL THE WAY TO THE 
MEXICAN COAST. ALSO...A TROUGH EXTENSION SE OF THE LOW IS 
ENHANCING CONVECTION WITHIN THE ITCZ BETWEEN 108W-115W.

A MID-LEVEL HIGH IS CENTERED OVER W CUBA WITH A RIDGE EXTENDING 
SW ACROSS SRN MEXICO TO 15N110W. THIS FEATURES CONTINUES TO 
PRODUCE A SUBSIDENT ENVIRONMENT OVER AND SW OF CENTRAL AMERICA 
SUCH THAT SKIES ARE MOSTLY CLEAR DOWN TO THE ITCZ. WEAK 
LOW-LEVEL CONVERGENCE INTO THE ITCZ IS PRODUCING WIDELY 
SCATTERED SHOWERS/TSTMS ALONG THE AXIS...WITH ONE CLUSTER OF 
SCATTERED MODERATE CONVECTION JUST OFF THE SW COAST OF PANAMA 
FROM 6N-8N BETWEEN 81W-84W.

$$
BERG