SPC MD 82

MD 0082 CONCERNING HEAVY SNOW FOR CNTRL/NERN KS…SERN NEB…FAR SWRN IA…EXTREME NWRN MO


MESOSCALE DISCUSSION 0082
NWS STORM PREDICTION CENTER NORMAN OK
0829 PM CST TUE JAN 29 2013

AREAS AFFECTED...CNTRL/NERN KS...SERN NEB...FAR SWRN IA...EXTREME
NWRN MO

CONCERNING...HEAVY SNOW

VALID 300229Z - 300630Z

SUMMARY...A BAND OF SNOWFALL ACROSS PORTIONS OF THE CNTRL PLAINS IS
EXPECTED TO PERSIST AND PERHAPS INTENSIFY DURING THE NEXT FEW HOURS.
MDT SNOW WITH BRIEF/ISOLATED SNOWFALL RATES AROUND 1 INCH/HR ARE
POSSIBLE.

DISCUSSION...RADAR IMAGERY ACROSS THE CNTRL PLAINS CONTINUES TO SHOW
A SNOW BAND FROM CNTRL KS NEWD INTO SWRN NEB. UPPER AIR ANALYSIS
SHOWS THE 700 MB TROUGH AXIS OF THE LARGE TROUGH ACROSS THE CNTRL
PLAINS IS GENERALLY LOCATED FROM CNTRL KS NEWD INTO S-CNTRL MN. THIS
PLACES THE DEFORMATION AXIS FROM CNTRL KS NEWD INTO SERN NEB/SWRN
IA.  MODEL GUIDANCE AND RECENT MESOANALYSIS SUGGESTS MOISTURE WILL
CONTINUE TO WRAP AROUND THE UPPER TROUGH INTO THE DEFORMATION AXIS
WITH THE PERSISTENCE AND PERHAPS INTENSIFICATION OF THE SNOWFALL IN
THE SNOW BAND. AS SUCH...BRIEF PERIOD WITH SNOWFALL RATES AROUND 1
INCH/HR ARE POSSIBLE.

..MOSIER.. 01/30/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...DMX...EAX...OAX...TOP...ICT...GID...DDC...GLD...

LAT...LON   40139558 39899616 38859772 37469961 37540057 39319976
            40659848 41429719 41939604 41929521 41419428 40369514
            40139558

via SPC Forecast Products http://www.spc.noaa.gov/products/md/md0082.html