000
AXPZ20 KNHC 190224
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
0405 UTC THU MAR 19 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0225 UTC. 

...INTERTROPICAL CONVERGENCE ZONE/MONSOON TROUGH...
            
THE MONSOON TROUGH EXTENDS FROM 1012 MB LOW PRES NEAR 06N89W TO 
05N109W. THE ITCZ EXTENDS FROM 07N127W TO 06N140W. SCATTERED 
MODERATE CONVECTION WAS NOTED FROM 03N TO 10N BETWEEN 87W AND 
94W.

...DISCUSSION... 

HIGH PRESSURE OF 1026 MB CENTERED N OF THE AREA NEAR 34N132W 
EXTENDS A RIDGE SE TO NEAR 21N114W. THE WEAK PRESSURE GRADIENT 
BETWEEN THIS AREA OF HIGH PRESSURE AND LOWER PRESSURE IN THE 
VICINITY OF THE ITCZ IS SUPPORTING MAINLY GENTLE TO MODERATE 
TRADES OVER THE WESTERN WATERS N OF THE ITCZ. MUCH OF THE AREA 
IS BELOW ADVISORY CRITERIA EXCEPT FOR A SMALL AREA OF NORTHERLY 
SWELLS N OF 28N BETWEEN 120W AND 128W. THIS SMALL AREA OF 
NORTHERLY SWELLS IS WILL CONTINUE OVER THE NEXT COUPLE OF DAYS 
BEFORE SUBSIDING BELOW 8 FT BY FRI MORNING. 
 
FAIRLY BENIGN CONDITIONS PREVAIL OVER THE FORECAST AREA. IN 
FACT...THIS IS THE FIRST TIME IN SEVERAL WEEKS THAT THERE ARE NO 
ONGOING GAP WIND EVENTS THAT EXCEED 20 KT WINDS OR SEAS TO 8 
FT...AND NONE ARE EXPECTED TO DEVELOP DURING THE NEXT 2-3 DAYS. 
THIS IS AN INDICATION THAT WINTER SEASON IS WINDING DOWN...AND 
WE ARE MOVING INTO THE TRANSITIONAL SPRING SEASON. THIS MEANS 
FEWER STRONG COLD FRONTS PUSHING FAR SOUTH INTO THE TROPICS WITH 
AREAS OF STRONG HIGH PRESSURE IN THE WESTERN CARIBBEAN AND SW 
GULF OF MEXICO PROVIDING THE FORCING FOR STRONG DIURNAL WINDS 
THROUGH THE USUAL GAP WIND LOCATIONS SUCH AS THE GULFS OF 
TEHUANTEPEC AND PAPAGAYO. 

$$
AL