000
AXPZ20 KNHC 241557
TWDEP 

TROPICAL WEATHER DISCUSSION     
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL
1605 UTC SUN DEC 24 2006

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 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 1500
UTC.

...ITCZ...
AXIS 7N77W 6N100W 5N120W 5N140W. SCATTERED MODERATE CONVECTION 
WITHIN 90 NM EITHER SIDE OF AXIS W OF 120W. 
 
...DISCUSSION...
TWO STRONG LARGE SCALE FEATURES DOMINATE THE MID LEVELS TODAY. ONE 
IS A CLOSED LOW OVER MEXICO AND THE OTHER A RIDGE ALONG 127W. AT THE 
SURFACE A 1025 MB HIGH IS NEAR 30N127W. FRESH NE TRADES OF 20 TO 25 
KT ARE LOCATED S OF 20N W OF 120W. WINDS ALONG THE BAJA COAST REMAIN 
NLY 15 TO 20 KT. WINDS ARE 20 TO 25 KT IN THE GULF OF CALIFORNIA. GAP
WINDS ARE LIGHT.

MONDAY THE STRONG TROUGH OVER MEXICO WILL MOVE E WHILE THE MID LEVEL 
RIDGE HOLDS NEAR 24N125W. STRONG SWLY FLOW WILL PREVAIL IN THE NW 
CORNER OF THE AREA. AT THE SURFACE THE HIGH DRIFTS TO 30N126W 
MAINTAINING NE TRADES TO 25 KT BETWEEN 8N AND 15N W OF 120W. SWLY 
WINDS INCREASE 20 TO 25 KT N OF 27N W OF 135W AS A FRONT APPROACHES. 
GULF OF CALIF WINDS REMAIN STEADY WHILE GAP WINDS INCREASE SLIGHTLY. 

TUESDAY THE STRONG MID LEVEL TROUGH MOVES E INTO THE WRN GULF OF 
MEXICO AND STRONG WLY FLOW BEGINS TO WORK ITS WAY INTO THE NW CORNER 
OF THE REGION BUT MOST OF THE ENERGY IS KEPT WELL N OF THE AREA BY 
THE SUBTROPICAL RIDGE. NE TRADES WILL WEAKEN AND THE AREA OF 20 TO 25
KT WINDS W OF 120W WILL CONTRACT NOTICEABLY. GAP WINDS WILL INCREASE 
THROUGH TEHUANTEPEC TO 30 KT AS HIGH PRESSURE BUILDS OVER THE WRN 
GULF OF MEXICO. GAP WINDS W OF NICARAGUA INCREASE TO 20 KT. 

$$
MUNDELL