000
AXPZ20 KNHC 040254
TWDEP 

TROPICAL WEATHER DISCUSSION                                     
NWS NATIONAL HURRICANE CENTER MIAMI FL                           
0405 UTC WED JUN 04 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 0000 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
0215 UTC.

...SPECIAL FEATURES...

TROPICAL STORM BORIS IS CENTERED NEAR 15.7N 94.0W AT 04/0300 UTC 
MOVING N AT 4 KT. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1000 MB. 
MAXIMUM SUSTAINED WIND SPEED IS 35 KT WITH GUSTS TO 45 KT. 
SCATTERED MODERATE/STRONG CONVECTION IS N OF 15N TO INLAND OVER 
MEXICO BETWEEN 93W-99W. THIS SYSTEM IS EXPECTED TO PRODUCE 
ADDITIONAL RAINFALL AMOUNTS OF 3 TO 6 INCHES WITH ISOLATED 
AMOUNTS OF UP TO 10 INCHES OVER THE MEXICAN STATES OF OAXACA AND 
CHIAPAS. THESE ADDITIONAL RAINS WILL BRING ISOLATED STORM TOTAL 
AMOUNTS TO AS MUCH AS 20 INCHES... ESPECIALLY OVER THE HIGHER 
TERRAIN. THESE RAINS ARE LIKELY TO RESULT IN LIFE-THREATENING 
FLASH FLOODS AND MUD SLIDES. PLEASE SEE LATEST NHC 
FORECAST/ADVISORY UNDER AWIPS/WMO HEADERS MIATCMEP2/WTPZ22 KNHC 
FOR MORE DETAILS.

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

MONSOON TROUGH AXIS EXTENDS FROM 9N83W TO 13N90W THEN RESUMES 
NEAR 13N103W 13N111W TO 09N120W. ITCZ EXTENDS FROM 10N118W 
05N131W TO BEYOND 4N140W. SCATTERED MODERATE TO STRONG 
CONVECTION N OF 8N INLAND OVER MEXICO BETWEEN 83W AND 88W. 
SCATTERED MODERATE/ISOLATED STRONG CONVECTION IS FROM 3N-6N 
BETWEEN 87W-93W. 

...DISCUSSION...     

A 1032 MB HIGH IS CENTERED WELL N OF THE DISCUSSION AREA WITH A 
RIDGE AXIS EXTENDING S-SE INTO THE REGION THROUGH 32N132W TO 
20N125W. THE PRESSURE GRADIENT BETWEEN THIS SURFACE RIDGE AND 
THE LOWER PRESSURE OVER THE DESERT SW IS TIGHT ENOUGH TO SUPPORT 
FRESH TO LOCALLY STRONG WINDS OFF THE COAST OF BAJA CALIFORNIA 
WITH SEAS TO 8 FT. THESE CONDITIONS ARE EXPECTED TO PERSIST 
THROUGH LATE THU NIGHT. A TIGHTENING PRESSURE GRADIENT BETWEEN 
THIS SURFACE RIDGE AND LOWER PRESSURE ALONG THE ITCZ IS 
PRODUCING SEAS TO 8FT THAT WILL SUBSIDE OVER NIGHT. 

THE LEADING EDGE OF CROSS EQUATORIAL SWELLS WITH PERIODS AT 19-21 
SECONDS IS CURRENTLY REACHING THE COASTLINE OF SOUTHERN MEXICO 
AND CENTRAL AMERICA...INCLUDING ALSO THE GULF OF PANAMA AND THE 
GULF OF TEHUANTEPEC. SEAS OF TO 8 FT ASSOCIATED WITH THESE 
SWELLS ARE CURRENTLY REACHING TO 4N BETWEEN 81W-86W AND TO 9N 
BETWEEN 92W-101W. THESE SEAS WILL GRADUALLY SUBSIDE THROUGH WED 
EVENING.  

$$ 
PAW