000
AXPZ20 KNHC 051609
TWDEP 

TROPICAL WEATHER DISCUSSION                                  
NWS NATIONAL HURRICANE CENTER MIAMI FL                      
1605 UTC SAT MAR 05 2016

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.              
  
...INTERTROPICAL CONVERGENCE ZONE...

ITCZ FROM 01N97W TO 01S105W TO 03N120W TO 03N130W. SCATTERED
MODERATE CONVECTION IS FROM 03S TO 02N BETWEEN 103W AND 110W.

...DISCUSSION...

AN OLD FRONT HAS PRODUCED 8-12 FT NW SWELL OVER THE WESTERN AREA
W OF 110W. NOW A NEW COLD FRONT HAS REACHED THE NW CORNER AT
30N140W. THIS NEW FRONT N OF 28N W OF 130W HAS SW WINDS 20 TO 25
KT WITH SEAS 12 TO 14 FT IN NW SWELL. THE FRONT WILL MOVE E OVER
THE NEXT 24 HOURS WITH 12 TO 16 FT NW SWELL OVER THE NW CORNER.
8-12 FT SWELL WILL REMAIN ELSEWHERE W OF 105W. IN 48 HOURS THE
FRONT WILL BE DISSIPATED HOWEVER A NEW AREA OF 25 KT WINDS WILL
ENTER THE AREA FROM THE N...BASICALLY N OF 29N BETWEEN 125W AND
132W NW WINDS 20 TO 25 KT WITH SEAS 14 TO 16 FT IN NW SWELL.
THIS SECONDARY SURGE OF NW WINDS WILL HAVE GALE FORCE WINDS N OF
FORECAST WATERS BETWEEN 123W-127W. AGAIN 8-12 FT NW SWELL WILL
REMAIN W OF 103W.  
 
BUILDING HIGH PRES ACROSS THE NW GULF OF MEXICO WILL ALLOW GAP
WINDS TO INCREASE THROUGH TEHUANTEPEC TODAY REACHING TO 30 KT
...THEN DIMINISHING BELOW 20-25 KT THIS AFTERNOON AS DRAINAGE
EFFECTS WEAKEN. ANOTHER WEAKER PULSE LATE SAT NIGHT INTO SUN
MORNING WILL DIMINISH BELOW 20 KT AS SOUTHERLY RETURN FLOW RE-
ESTABLISHES ITSELF ACROSS THE WESTERN GULF OF MEXICO.

$$ 
FORMOSA