MESOSCALE DISCUSSION 0028
   NWS STORM PREDICTION CENTER NORMAN OK
   1255 PM CST THU JAN 08 2009
   
   AREAS AFFECTED...NORTHEAST MT/WESTERN ND
   
   CONCERNING...FREEZING RAIN 
   
   VALID 081855Z - 090000Z
   
   FREEZING RAIN AND SOME SLEET SHOULD GRADUALLY INCREASE THROUGH
   MID/LATE AFTERNOON INTO EARLY EVENING WITHIN A RELATIVELY NARROW
   NORTHWEST-SOUTHEAST CORRIDOR ACROSS NORTHEAST MT/WESTERN
   ND...INCLUDING THE WILLISTON/DICKINSON/HAZEN/BEULAH ND VICINITIES.
   
   LATEST SURFACE ANALYSIS FEATURES A NORTHWEST-SOUTHEAST ORIENTED
   QUASI-STATIONARY FRONT FROM EASTERN MT INTO WESTERN SD. AHEAD OF A
   SHORTWAVE TROUGH/DOWNSTREAM HEIGHT FALLS ACROSS THE NORTHERN
   INTERMOUNTAIN WEST...A PERSISTENT WARM ADVECTION REGIME/SATURATION
   SHOULD LEAD TO A GRADUAL INCREASE IN PRECIPITATION RATES THIS
   AFTERNOON FROM NORTHEAST MT INTO WESTERN SD. WITH A COLD LOW LEVEL
   AIRMASS WELL ENTRENCHED ON THE COOL SIDE OF THE SURFACE FRONT...RUC
   FORECAST SOUNDINGS SUGGEST A WARMING/ABOVE 32F LAYER BASED
   AROUND/ABOVE 750 METERS AGL WILL BE FAVORABLE FOR FULL/PARTIAL
   MELTING AND SUBSEQUENT FREEZING RAIN/SOME SLEET WITHIN A ROUGHLY
   50-60 MILE CORRIDOR ACROSS NORTHEAST MT/WESTERN ND...ESPECIALLY
   AFTER 21Z.
   
   ..GUYER.. 01/08/2009
   
   
   ...NOTICE...
   SPC WINTER WEATHER MESOSCALE DISCUSSIONS WILL BE ISSUED ON A
   SCHEDULED BASIS FROM DECEMBER 1 THROUGH FEBRUARY 28...FOUR
   TIMES A DAY...AROUND 00 UTC...06 UTC...12 UTC...AND 18 UTC
   FOR SIGNIFICANT SHORT RANGE WINTER WEATHER EVENTS.
   
   ATTN...WFO...ABR...BIS...GGW...
   
   LAT...LON   48740437 47560230 46180051 45740106 45950188 46790296
               48370569 48740437