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 47
< Previous MD         Next MD >
MD 47 graphic

   MESOSCALE DISCUSSION 0047
   NWS STORM PREDICTION CENTER NORMAN OK
   0730 AM CST FRI JAN 22 2016

   AREAS AFFECTED...PORTIONS OF FAR ERN MO...FAR SRN IL/IND...
   WRN/MIDDLE TN...AND MUCH OF KY

   CONCERNING...HEAVY SNOW 

   VALID 221330Z - 221730Z

   SUMMARY...HEAVY SNOW WILL DEVELOP/CONTINUE THROUGH 18Z. SNOWFALL
   RATES OF 1-2 INCHES/HR WILL BE COMMON.

   DISCUSSION...RADAR MOSAIC AS OF 1330Z SHOWS A BAND OF MODERATE TO
   HEAVY PRECIPITATION EXTENDING FROM FAR SERN MO ENEWD INTO PORTIONS
   OF WRN/MIDDLE TN AND MUCH OF KY. SFC TEMPERATURES HAVE GENERALLY
   FALLEN BELOW FREEZING ACROSS THIS REGION...AND TEMPERATURES ALOFT
   HAVE ALSO COOLED OVER THE PAST SEVERAL HOURS. THIS HAS SUPPORTED A
   TRANSITION TO MAINLY SNOW ACROSS THE MCD AREA. ACROSS PARTS OF
   MIDDLE TN...THE TRANSITION TO SNOW HAS OCCURRED WITHIN THE PAST
   HOUR...AS THE 12Z SOUNDING FROM KBNA SHOWED A NEARLY ISOTHERMAL
   PROFILE ALONG THE 0 DEG C ISOTHERM FROM THE SFC TO AROUND 780 MB. AS
   THE UPPER LOW OVER THE LOWER MS VALLEY/MID SOUTH PIVOTS NEWD THROUGH
   THE REMAINDER OF THE MORNING...A DEFORMATION ZONE OF HEAVY SNOW
   ASSOCIATED WITH STRONG LOW- TO MID-LEVEL FRONTOGENESIS APPEARS
   LIKELY TO DEVELOP/CONTINUE...WITH SNOWFALL RATES OF 1-2 INCHES/HR
   COMMON. THE HEAVY SNOW WILL GRADUALLY END ACROSS WRN PORTIONS OF THE
   MCD AREA THROUGH 18Z AS THE UPPER LOW AND ASSOCIATED MID- TO
   UPPER-LEVEL FORCING MOVE NEWD.

   ..GLEASON.. 01/22/2016


   ATTN...WFO...RLX...MRX...JKL...ILN...LMK...OHX...PAH...MEG...

   LAT...LON   35798799 35808891 36198923 36658957 37198926 37638866
               37978734 38318556 38438323 38238272 37748243 37428244
               36748322 36388485 36018668 35798799 

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: January 22, 2016
Disclaimer
Information Quality
Help
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities