Skip Navigation Links weather.gov   
NOAA logo - Click to go to the NOAA homepage National Weather Service   NWS logo - Click to go to the NWS homepage
National Hurricane Center
Local forecast by
"City, St" or "ZIP"

 
Alternate Formats
   Text     |   Mobile
   Email   |   RSS XML/RSS logo
   About Alternates
Cyclone Forecasts
   Latest Advisory
   Past Advisories
   Audio/Podcasts
   About Advisories
Marine Forecasts
   Atlantic & E Pacific
   Gridded Marine
   About Marine
Tools & Data
   Satellite | Radar
   Analysis Tools
   Aircraft Recon
   GIS Datasets
   Data Archive
Development
   Experimental
   Research
   Forecast Accuracy
Outreach & Education
   Prepare
   Storm Surge
   About Cyclones
   Cyclone Names
   Wind Scale
   Most Extreme
   Forecast Models
   Breakpoints
   Resources
   Glossary | Acronyms
   Frequent Questions
Our Organization
   About NHC
   Mission & Vision
   Staff | Q&A
   Visitors | Virtual Tour
   Library Branch
   NCEP | Newsletter
Contact Us
   Comments
Follow the National Hurricane Center on Facebook Follow the National Hurricane Center on Twitter
Subscribe the National Hurricane Center on YouTube Read the National Hurricane Center Inside the Eye blog on WordPress
FirstGov.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.
 
 

Eastern Pacific Tropical Weather Discussion



000
AXPZ20 KNHC 260348
TWDEP 

TROPICAL WEATHER DISCUSSION                                    
NWS NATIONAL HURRICANE CENTER MIAMI FL                         
0405 UTC WED NOV 26 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 
0300 UTC.  

...SPECIAL FEATURE...    

GULF OF TEHUANTEPEC STORM WARNING...A STRONG COLD FRONT MOVING 
INTO THE SW GULF OF MEXICO HAS A SHARP RIDGE OF HIGH PRESSURE 
BEHIND THE FRONT IN SOUTHERN MEXICO PRODUCING A TIGHT PRESSURE 
GRADIENT. GALE FORCE WINDS THIS EVENING WILL QUICKLY INCREASE TO 
STORM FORCE BY SUNRISE WED. STORM FORCE WINDS ARE EXPECTED TO 
PERSIST THROUGH THU MORNING...DIMINISH TO GALE FORCE THU 
AFTERNOON...THEN BELOW GALE SAT AFTERNOON. WAVE MODEL GUIDANCE 
INDICATES SEAS BUILDING TO 23-25 FT WITH NE SWELL GREATER THAN 8 
FT PROPAGATING WELL DOWNSTREAM FROM ITS GULF OF TEHUANTEPEC 
SOURCE REGION.

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

THE MONSOON TROUGH AXIS EXTENDS FROM 10N85W TO 09N110W. ITCZ 
EXTENDS FROM 09N110W TO 11N118W TO 08N140W. SCATTERED MODERATE 
CONVECTION WITHIN 45 NM OF AXIS BETWEEN 116W AND 121W.

...DISCUSSION...                                                 

GULF OF CALIFORNIA...ASCAT SCATTEROMETER PASS AT 1640 UTC SHOWS 
20-30 KT N-NW WINDS N OF 23N IN THE GULF OF CALIFORNIA. A TIGHT 
PRESSURE GRADIENT EXISTS DUE TO A TROUGH ALONG THE EASTERN GULF 
OF CALIFORNIA AND RIDGING NOSING DOWN THE WEST COAST OF BAJA 
CALIFORNIA. WINDS WILL DIMINISH TO 20 KT OR LESS BY THU MORNING. 
SEAS TO 9 FT IN THE SOUTHERN GULF WILL SUBSIDE TO LESS THAN 8 FT 
BY WED NIGHT.

A 1026 MB HIGH N OF THE DISCUSSION ARE CENTERED NEAR 34N127W 
EXTENDS A RIDGE ACROSS NORTHERN WATERS. THE PRESSURE GRADIENT 
BETWEEN THE RIDGE AND LOWER PRESSURE ASSOCIATED WITH THE ITCZ IS 
SUPPORTING MODERATE TO FRESH TRADES ACROSS THE WATERS W OF 110W. 

FRESH TO STRONG S WINDS ARE OCCURRING IN THE FAR NW CORNER AHEAD 
OF A COLD FRONT NEAR 140W. WINDS WILL DIMINISH AS THE FRONT 
WEAKENS WHILE MOVING SLOWLY WEST WED. ASSOCIATED NW SWELL TO 12 
FT WILL COVER THE AREA W OF A LINE FROM 30N133W TO 19N140W BY 
THU MORNING.

MIXED SWELL WITH COMBINED SEAS OF 8-10 FT COVERS THE REMAINDER 
OF THE WATERS NW OF A LINE FROM 24N112W TO 13N123W TO 07N140W. 
THIS SWELL WILL DECAY TO LESS THAN 8 FT DURING THE NEXT 24-48 
HOURS WITH THE ONLY REMAINING AREA OF SEAS 8-9 FT BECOMING 
CONFINED TO THE W CENTRAL WATERS N OF THE ITCZ BY THU MORNING.

GULF OF PAPAGAYO...STRONG HIGH PRESSURE WILL BUILD EASTWARD IN 
THE WAKE OF A COLD FRONT MOVING ACROSS THE GULF OF MEXICO INTO 
THE WESTERN CARIBBEAN. EXPECT FRESH TO NEAR GALE FORCE NE WINDS 
DOWNSTREAM FROM THE GULF OF PAPAGAYO EARLY THU MORNING THROUGH 
THU EVENING WITH SEAS BUILDING TO 10-11 FT THU. 

$$
MUNDELL



Quick Navigation Links:
Tropical Cyclone Forecasts  -  Tropical Marine Forecasts  -  Data Archive
Outreach  -  Prepare  -  About Cyclones  -  About NHC  -  Contact Us

NOAA/ National Weather Service
National Centers for Environmental Prediction
National Hurricane Center
11691 SW 17th Street
Miami, Florida 33165 USA
nhcwebmaster@noaa.gov
Disclaimer
Credits
Information Quality
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
Page last modified: Wednesday, 26-Nov-2014 03:48:41 UTC