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.
 
 

Tropical Depression NINE


ZCZC MIATCDAT4 ALL
TTAA00 KNHC DDHHMM
TROPICAL DEPRESSION NINE DISCUSSION NUMBER   1
NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL   AL092007
1100 AM EDT WED SEP 12 2007
 
RADAR...SATELLITE...AND BUOY OBSERVATIONS INDICATE THAT THE AREA OF
LOW PRESSURE IN THE WESTERN GULF OF MEXICO HAS BECOME BETTER
ORGANIZED THIS MORNING. NWS RADAR IMAGERY FROM CORPUS CHRISTI AND
HOUSTON SHOW A LOOSE BANDING STRUCTURE IN THE SOUTHEAST AND
NORTHWEST QUADRANTS...WHILE THE NORTHWEST WINDS FROM NOAA BUOY
42019 INDICATE THAT THE SYSTEM LIKELY HAS A WELL-DEFINED SURFACE
CIRCULATION. CONSEQUENTLY... TROPICAL CYCLONE ADVISORIES ARE BEING
INITIATED. WITH 38 KT WINDS REPORTED FROM SHIP V7DI7...THE SYSTEM
MIGHT ALREADY BE A TROPICAL STORM...BUT FOR THE MOMENT THOSE WINDS
ARE JUDGED AS UNREPRESENTATIVE OF THE CYCLONE SCALE. THE INITIAL
INTENSITY IS ESTIMATED TO BE 30 KT FOR NOW...WITH A BETTER READ ON
THE INTENSITY EXPECTED WHEN A RECONNAISSANCE AIRCRAFT ARRIVES IN
THE AREA WITHIN THE NEXT HOUR OR SO. THE DEPRESSION IS IN A
LIGHT-SHEAR ENVIRONMENT WITH ANTICYCLONIC FLOW ALOFT...AND SOME
INTENSIFICATION IS THEREFORE ANTICIPATED. THE PRIMARY INHIBITING
FACTOR FOR DEVELOPMENT WILL BE THE SHORT PERIOD OF TIME THE SYSTEM
WILL HAVE OVER WATER. THE OFFICIAL FORECAST REPRESENTS A BLEND OF
THE SHIPS AND GFDL GUIDANCE.
 
THE INITIAL MOTION ESTIMATE IS 350/5.  THE DEPRESSION IS ROUNDING
THE WESTERN PERIPHERY OF MID-LEVEL HIGH PRESSURE THAT EXTENDS FROM
THE ATLANTIC ACROSS FLORIDA INTO THE CENTRAL GULF OF MEXICO.  A
MID-LATITUDE SHORT-WAVE TROUGH OVER THE SOUTHWESTERN UNITED STATES
IS FORECAST TO DIG SOUTHEASTWARD OVER THE NEXT COUPLE OF DAYS AND
INDUCE A GRADUAL TURN OF THE CYCLONE TOWARD THE NORTHEAST.  MODEL
GUIDANCE IS IN PRETTY GOOD AGREEMENT ON THIS SCENARIO IN THE SHORT
TERM...ALTHOUGH WHAT HAPPENS WITH THE REMNANTS OF THE CYCLONE AFTER
DAY 2 IS LESS CLEAR.  MOST OF THE GUIDANCE MODELS DETACH THE SYSTEM
FROM THE WESTERLIES AND LINGER IT ALONG THE GULF COAST...WHERE IT
COULD REPRESENT A PROLONGED RAINFALL THREAT.

 
FORECAST POSITIONS AND MAX WINDS
 
INITIAL      12/1500Z 28.1N  95.2W    30 KT
 12HR VT     13/0000Z 28.6N  95.3W    40 KT
 24HR VT     13/1200Z 29.8N  95.0W    40 KT...INLAND
 36HR VT     14/0000Z 31.4N  94.0W    30 KT...INLAND
 48HR VT     14/1200Z 32.7N  91.5W    20 KT...REMNANT LOW
 72HR VT     15/1200Z...DISSIPATED
 
$$
FORECASTER FRANKLIN
 
NNNN


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 33165-2149 USA
nhcwebmaster@noaa.gov
Disclaimer
Credits
Information Quality
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
Page last modified: Friday, 02-Nov-2007 21:20:48 UTC