Skip Navigation Links weather.gov 
NOAA logo-Select to go to the NOAA homepage NOAA's National Weather Service   Select to go to the NWS homepage
Storm Prediction Center
navigation bar left  
  navigation bar end cap


 
USA.gov is the U.S. Government's official Web portal to all Federal, state and local government Web resources and services.

Mesoscale Discussion 200
< Previous MD         Next MD >
MD 200 graphic

   MESOSCALE DISCUSSION 0200
   NWS STORM PREDICTION CENTER NORMAN OK
   1010 AM CDT TUE MAR 18 2014

   AREAS AFFECTED...N CENTRAL NEB TO E CENTRAL SD AND CENTRAL MN

   CONCERNING...HEAVY SNOW 

   VALID 181510Z - 181915Z

   SUMMARY...A NARROW SNOW BAND WILL BE MAINTAINED AND ONLY DRIFT N-NW
   THROUGH ABOUT MID AFTERNOON...WITH LOCALIZED SNOWFALL RATES NEAR 1
   INCH PER HOUR.

   DISCUSSION...A LOW-MIDLEVEL DEFORMATION ZONE IS BECOMING BETTER
   DEFINED FROM N CENTRAL NEB NEWD TO ERN SD AND CENTRAL MN...N OF THE
   CYCLONE NOW IN CENTRAL KS.  FRONTOGENESIS WILL REMAIN STRONGEST NEAR
   700 MB THROUGH ABOUT 18-21Z IN THE SAME ZONE WHERE THE NARROW SNOW
   BAND IS ALREADY ESTABLISHED...WHICH SUPPORTS THE SLOW MOTION NOTED
   IN RADAR IMAGERY AND IN SHORT-TERM HIGH-RESOLUTION MODEL FORECASTS. 
   PRECIPITATION IS ALSO LIKELY TO REMAIN FOCUSED IN A SINGLE BAND AS A
   RESULT OF CSI AND WEAK STATIC STABILITY IN THE MIDLEVELS.  MARGINAL
   MOISTURE INFLUX AND SURFACE TEMPERATURES NEAR 32 F WILL POTENTIALLY
   LIMIT SNOWFALL ACCUMULATION RATES...HOWEVER.

   THIS INITIAL SNOW BAND IS EXPECTED TO BREAK DOWN AFTER 21Z AS THE
   CENTRAL PLAINS CYCLONE BEGINS TO ACCELERATE EWD TO THE MID MS
   VALLEY...AND AS A NEW AREA OF ASCENT AND PRECIPITATION DEVELOPMENT
   FOCUSES INVOF WRN IA.

   ..THOMPSON.. 03/18/2014


   ATTN...WFO...DLH...MPX...FSD...ABR...LBF...

   LAT...LON   44179732 43289830 42029940 41570000 41630027 41870040
               44259802 45049693 45589570 45809440 45829337 45789311
               45549317 45529329 45549346 45369494 45189569 44719652
               44179732 

Top/All Mesoscale Discussions/Forecast Products/Home
Weather Topics:
Watches, Mesoscale Discussions, Outlooks, Fire Weather, All Products, Contact Us

NOAA / National Weather Service
National Centers for Environmental Prediction
Storm Prediction Center
120 David L. Boren Blvd.
Norman, OK 73072 U.S.A.
spc.feedback@noaa.gov
Page last modified: March 18, 2014
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities