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 SONIA


ZCZC MIATCDEP3 ALL
TTAA00 KNHC DDHHMM
 
TROPICAL DEPRESSION SONIA DISCUSSION NUMBER  13
NWS NATIONAL HURRICANE CENTER MIAMI FL       EP182013
100 AM PST MON NOV 04 2013
 
SCATTEROMETER DATA INDICATE THAT THE CENTER OF SONIA REACHED THE
COAST OF SINALOA NEAR THE CITY OF EL DORADO ROUGHLY AROUND 0500
UTC...AND THE CYCLONE WAS STILL PRODUCING A SMALL AREA OF 35-KT
WINDS NEAR THE COAST TO THE SOUTHEAST OF THE CENTER AT THAT TIME. 
NOW THAT THE CENTER AND ALL OF THE DEEP CONVECTION HAVE MOVED
INLAND...SONIA IS PROBABLY NO LONGER PRODUCING SUSTAINED TROPICAL-
STORM-FORCE WINDS...AND IT IS BEING DOWNGRADED TO A DEPRESSION ON
THIS ADVISORY.  RAPID WEAKENING IS EXPECTED FROM THIS POINT FORWARD
DUE TO INTERACTION WITH MOUNTAINOUS TERRAIN AND VERY STRONG SHEAR. 
EVEN THOUGH THE NHC FORECAST PROVIDES A 12-HOUR REMNANT LOW
POSITION...SONIA COULD VERY WELL HAVE DISSIPATED BY THAT TIME AS
SHOWN BY THE GLOBAL MODELS.

SONIA WAS MOVING QUICKLY NORTH-NORTHEASTWARD BETWEEN 15-20 KT BEFORE
IT REACHED LAND...BUT IT IS NOW SLOWING DOWN CONSIDERABLY WITH AN
ESTIMATED MOTION OF 030/8 KT.  AN EVEN SLOWER NORTH-NORTHEASTWARD
MOTION IS EXPECTED BEFORE DISSIPATION DUE TO THE LOW-LEVEL CENTER
BECOMING BLOCKED BY MOUNTAINOUS TERRAIN.

EVEN THOUGH SONIA IS WEAKENING...LOCALLY HEAVY RAINFALL IS STILL
POSSIBLE ACROSS PORTIONS OF SINALOA...WESTERN DURANGO...AND
SOUTHERN CHIHUAHUA THROUGH THE DAY.
 
FORECAST POSITIONS AND MAX WINDS
 
INIT  04/0900Z 24.6N 107.3W   30 KT  35 MPH...INLAND
 12H  04/1800Z 25.0N 107.0W   20 KT  25 MPH...POST-TROP/REMNT LOW
 24H  05/0600Z...DISSIPATED
 
$$
FORECASTER BERG
 
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 USA
nhcwebmaster@noaa.gov
Disclaimer
Credits
Information Quality
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities
Page last modified: Monday, 07-Apr-2014 23:29:41 UTC