000
AXPZ20 KNHC 232205
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
2205 UTC MON MAR 09 2015

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 
2145 UTC. 
 
...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
 
THE MONSOON TROUGH EXTENDS FROM 07N90W TO 1013 MB LOW PRES NEAR 
05N96W TO 04N108W. THE ITCZ EXTENDS FROM 04N108W TO 06N120W TO 
04N135W TO 04N140W. SCATTERED MODERATE CONVECTION IS NOTED 
WITHIN 120 NM N OF AXIS W OF 137W.

SCATTERED MODERATE CONVECTION IS OBSERVED WELL N OF THE ITCZ 
AXIS FROM 08N TO 10N BETWEEN 125W AND 135W.
 
...DISCUSSION... 
  
A VERY WEAK PRESSURE PATTERN CONTINUES ACROSS THE MOST OF THE 
REGION. BUOY OBSERVATIONS AND DATA FROM RECENT SCATTEROMETER 
SATELLITE PASSES INDICATE GENERALLY LIGHT WINDS OVER MOST OF THE 
AREA. THE EXCEPTION IS OFF THE COAST OF BAJA CALIFORNIA NORTE 
WHERE FRESH NW TO N WINDS ARE NOTED ON THE EAST SIDE OF STRONG 
HIGH PRESSURE CENTERED WEST OF THE AREA NEAR 30N130W. SEAS IN 
THIS AREA ARE LIKELY REACHING 8 FT DUE IN PART TO NW SWELL 
GENERATED BY PREVIOUS STRONG WINDS OFF THE COAST OF SOUTHERN AND 
CENTRAL CALIFORNIA. RECENT ALTIMETER PASSES ELSEWHERE INDICATE 
GENERALLY 4 TO 5 FT WAVE HEIGHTS. STRONG GAP WINDS WILL BRIEFLY 
PUSH INTO THE GULF OF TEHUANTEPEC TONIGHT...ASSOCIATED WITH A 
COLD FRONT MOVING ACROSS THE SW GULF OF MEXICO THIS AFTERNOON. 
IN ADDITION...LONG PERIOD SW SWELL IS EXPECTED TO MOVE ACROSS 
THE EQUATOR BETWEEN THE GALAPAGOS AND 120W EARLY 
TUESDAY...BRINGING 8 FT OR GREATER TO THE MEXICAN AND CENTRAL 
AMERICAN COASTLINES THROUGH LATE WEEK.

FARTHER WEST...STRONG SUBTROPICAL RIDGING IS SUPPORTING FRESH 
TRADES NEAR THE ITCZ W OF 135W. LONG PERIOD NW SWELL OVER MUCH 
OF THE AREA N OF 15N W OF 130W WILL DECAY BELOW 8 FT THROUGH 
TONIGHT.

LOOKING AHEAD...GULF OF TEHUANTEPEC...NORTHERLY 20-25 KT FLOW IS 
FORECAST TONIGHT THROUGH SUNRISE ON TUE WITH SEAS BUILDING TO 8 
FT. A STRONGER TEHUANTEPEC EVENT IS EXPECTED ON FRI NIGHT WITH 
MINIMAL GALE CONDITIONS.

$$ 
CHRISTENSEN