000
AXPZ20 KNHC 082142
TWDEP 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL
2205 UTC FRI MAR 8 2013

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 1800 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
2100 UTC.

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH... 

NORTHERN HEMISPHERE PORTION OF ITCZ EXTENDS FROM 08N83W TO 
02N101W. SCATTERED MODERATE TO STRONG CONVECTION NOT DIRECTLY 
ASSOCIATED WITH CONVERGENCE ZONE FROM 06N TO 10N BETWEEN 129W 
AND 135W.

...DISCUSSION...

UPPER LEVEL DIFFLUENCE BETWEEN A TROUGH OVER NW PORTION AND AN 
ANTICYCLONIC CIRCULATION ALONG 5N BETWEEN 110W-120W IS ENHANCING 
CONVECTION FROM 5N-15N W OF 125W. DEEP LAYER TROUGH EXTENDS FROM 
A CYCLONIC CIRCULATION NEAR 44N122W TO 30N118W. A 120 KT JET IS 
ROUNDING THE BASE OF THE TROUGH ACROSS NORTHERN BAJA CALIFORNIA 
INTO NW MEXICO.

BROAD SUBTROPICAL RIDGE DOMINATES NORTHERN PORTION OF DISCUSSION 
AREA N OF 15N W OF 115W. SUBTROPICAL HIGH WILL REMAIN FIRMLY IN 
PLACE W OF CALIFORNIA NEAR 35N132W THROUGH WED...AND MAINTAIN 
FRESH TO STRONG E-NE TRADE WINDS N OF THE CONVERGENCE ZONE W OF 
110W THROUGH THE WEEKEND INTO EARLY NEXT WEEK. EXPECT VERY 
LITTLE CHANGE TO OVERALL SYNOPTIC PATTERN NEXT DAYS. NW WINDS IN 
THE GULF OF CALIFORNIA ARE EXPECTED TO INCREASE TO 20-25 KT SUN.

NE WINDS TO 25 KT THROUGH THE GULF OF PAPAGAYO WILL CONTINUE TO 
PULSE IN A DIURNAL CYCLE THROUGH MON MORNING WITH HIGHEST WINDS 
IN THE EARLY MORNING HOURS. NLY WINDS 20-25 KT THROUGH THE GULF 
OF TEHUANTEPEC WILL DECREASE TO LESS THAN 20 KT THIS EVENING.



$$
MUNDELL