000
AXPZ20 KNHC 282154
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL 
2205 UTC FRI MAR 28 2014

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... 

ITCZ EXTENDS FROM 05N86W TO 06N103W TO 05N120W TO 03N125W TO 
03N140W. SCATTERED MODERATE TO ISOLATED STRONG CONVECTION IS 
FROM 03N TO 06N BETWEEN 93W AND 100W. SCATTERED MODERATE 
CONVECTION IS FROM 01N TO 08N BETWEEN 102W AND 122W.  

...DISCUSSION...  

AN UPPER LEVEL RIDGE HAS ENTERED THE NW CORNER N OF 20W AND W OF 
130W WITH STRONG SUBSIDENCE. AN UPPER LEVEL TROUGH IS N OF 20N 
BETWEEN 110W AND 130W TO INCLUDE BAJA CALIFORNIA. ZONAL FLOW IS 
N OF 20N E OF 110W OVER MEXICO. 

IN THE DEEP TROPICS AN UPPER LEVEL HIGH IS CENTERED NEAR 9N123W. 
ANOTHER UPPER LEVEL HIGH IS CENTERED NEAR 7N100W. THE TWO UPPER 
LEVEL HIGHS ARE SEPARATED BY A COL AT 9N112W. 

A 1025 MB HIGH PRES IS CENTERED NEAR 28N131W. SURFACE RIDGING IS 
N OF 15N W OF 110W.  

NW WINDS 20 KT OR LESS WITH SEAS TO 8 FT ARE ALONG THE COAST OF 
BAJA CALIFORNIA N OF 27N E OF 117W. THESE WINDS AND SEAS WILL 
SUBSIDE WITHIN 18 HOURS.  
 
NE TO E TRADEWINDS WINDS 20KT OR LESS WITH NW SWELL TO 9 FT ARE 
ACROSS THE AREA FROM 05N TO 17N W OF 115W. THE SWELL AREA WILL 
PERSIST OVER THE NEXT 48 HOURS.  

A NEW SWELL AREA OF 8 TO 9 FT WILL BE OVER THE NW CORNER IN 06 
HOURS AND WILL MOVE SE.  

ELY WINDS TO 20-30 KT WITH SEAS TO 10 FT ARE FROM 09N TO 12.5N E 
OF 92W TO INCLUDE THE GULF OF PAPAGAYO. THESE WINDS AND SEAS 
WILL DECREASE TO WINDS 20 KT OR LESS WITH SEAS LESS THAN 8 FT IN 
24 HOURS.
 
A GULF OF TEHUANTEPEC WIND EVENT IS FORECAST TO BEGIN IN 36 
HOURS OR SAT NIGHT WITH 25 KT NLY WINDS. WINDS OF 30 KT AND SEAS 
TO 10 FT WILL OCCUR 6 HOURS LATER. GALE FORCE WINDS ARE POSSIBLE 
BUT NOT EXPECTED SUN MORNING BASED ON AVAILABLE GUIDANCE.

$$
FORMOSA