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.
 
 

Atlantic Tropical Weather Discussion



000
AXNT20 KNHC 281715
TWDAT 

TROPICAL WEATHER DISCUSSION
NWS NATIONAL HURRICANE CENTER MIAMI FL 
105 PM EST SUN DEC 28 2014

TROPICAL WEATHER DISCUSSION FOR NORTH AMERICA...CENTRAL  
AMERICA...GULF OF MEXICO...CARIBBEAN SEA...NORTHERN SECTIONS OF 
SOUTH AMERICA...AND ATLANTIC OCEAN TO THE AFRICAN COAST FROM THE 
EQUATOR TO 32N. THE FOLLOWING INFORMATION IS BASED ON SATELLITE 
IMAGERY...WEATHER OBSERVATIONS...RADAR...AND METEOROLOGICAL 
ANALYSIS.

BASED ON 1200 UTC SURFACE ANALYSIS AND SATELLITE IMAGERY THROUGH 
1645 UTC. 

...THE ITCZ/THE MONSOON TROUGH...                                

THE MONSOON TROUGH CROSSES THE AFRICAN COAST NEAR 6N11W AND 
EXTENDS TO 6N21W WHERE THE ITCZ BEGINS AND CONTINUES TO 4N37W TO 
THE COAST OF SOUTH AMERICA AT 3N51W. NO SIGNIFICANT CONVECTION. 

...DISCUSSION...

GULF OF MEXICO... 

A COLD FRONT EXTENDS SW FROM A LOW IN SOUTHERN MISSISSIPPI 
ACROSS THE NW GULF OF MEXICO TO CENTRAL MEXICO NEAR 23N98W. 
FRESH NORTHERLY WINDS ARE N OF THE FRONT. THE REMAINDER OF THE 
GULF HAS GENTLE TO MODERATE SOUTHERLY WINDS. RADAR IMAGERY SHOWS 
SCATTERED SHOWERS WITHIN 240 NM NW OF FRONT EXTENDING INLAND. AT 
UPPER LEVELS...A LARGE RIDGE AXIS ALONG 75W IS PRODUCING SW FLOW 
OVER THE GULF. UPPER MOISTURE FROM THE TROPICAL EAST PACIFIC IS 
STREAMING OVER CENTRAL MEXICO INTO THE NORTHERN GULF. EXPECT THE 
FRONT TO EXTEND FROM THE FLORIDA PANHANDLE TO BAY OF CAMPECHE 
MON WITH WIDESPREAD LIGHT TO MODERATE SHOWERS ALONG THE FRONT. 

CARIBBEAN SEA...   

MODERATE TO FRESH TRADE WINDS PREVAIL ACROSS THE CARIBBEAN WITH 
STRONGEST WINDS JUST N OF THE COAST OF COLOMBIA. SCATTERED LIGHT 
SHOWERS ARE OVER THE GULF OF HONDURAS AND HONDURAS. ELSEWHERE... 
THE TAIL END OF A COLD FRONT IS PRODUCING SCATTERED SHOWERS OVER 
THE VIRGIN ISLANDS...PUERTO RICO...AND THE DOMINICAN REPUBLIC. 
MOSTLY FAIR WEATHER IS OVER THE REMAINDER OF THE CARIBBEAN. IN 
THE UPPER LEVELS...A LARGE RIDGE AXIS ALONG 75W IS PRODUCING 
STRONG SUBSIDENCE. EXPECT SCATTERED SHOWERS TO MOVE OVER THE 
WINDWARD ISLANDS MON...AND INTO BELIZE. 

HISPANIOLA...                   

MOSTLY CLOUDY SKIES AND SCATTERED TRADE WIND SHOWERS ASSOCIATED 
WITH THE TAIL END OF A COLD FRONT IS MOVING ACROSS THE EASTERN 
PORTION OF THE ISLAND. EXPECT THE REMNANTS OF THE FRONT TO PASS 
OVER THE ISLAND TONIGHT. RIDGING WITH STRONG SUBSIDENCE ALOFT 
WILL SUPPRESS DEEP CONVECTION.   

ATLANTIC OCEAN...   

A 1026 MB HIGH IN THE CENTRAL ATLANTIC NEAR 32N66W ANCHORS A 
BROAD RIDGE AND DOMINATES THE REGION N OF 18N WITH FAIR WEATHER. 
A COLD FRONT EXTENDS SW FROM A 1007 MB LOW NEAR 31N37W TO 24N41W 
TO 19N55W THEN DISSIPATING TO PUERTO RICO. SCATTERED SHOWERS ARE 
WITHIN 60 NM OF THE FRONT. A 1031 MB HIGH W OF PORTUGAL NEAR 
38N16W EXTENDS A RIDGE S OF THE CANARY ISLANDS. AN UPPER LOW IS 
CENTERED NEAR 30N38W WITH DIFFLUENCE E OF THE CENTER ENHANCING 
CONVECTION N OF 27N. EXPECT THE LOW TO MOVE N OF THE AREA MON 
WHILE DRAGGING THE FRONT AND ASSOCIATED SHOWERS INTO THE EASTERN 
ATLANTIC. 


FOR ADDITIONAL INFORMATION PLEASE VISIT 
WWW.HURRICANES.GOV/MARINE

$$
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: Sunday, 28-Dec-2014 17:15:25 UTC