ZCZC SPCSWOMCD ALL ACUS11 KWNS 020137 SPC MCD 020137 KSZ000-NEZ000-020630- MESOSCALE DISCUSSION 0068 NWS STORM PREDICTION CENTER NORMAN OK 0737 PM CST MON FEB 01 2016 AREAS AFFECTED...NW KS...SW NEB CONCERNING...HEAVY SNOW VALID 020137Z - 020630Z SUMMARY...AREAS OF HEAVY SNOW ARE EXPECTED TO DEVELOP ACROSS NW KS AND SW NEB THIS EVENING. SNOWFALL RATES COULD REACH 1 INCH PER HOUR WITHIN A FEW LOCATIONS INSIDE THE MCD AREA. DISCUSSION...LATEST SFC ANALYSIS SHOWS A 997 MB LOW JUST TO THE NORTHEAST OF RATON PASS WITH UPSLOPE FLOW TO THE NORTH OF THE SFC LOW OVER MUCH OF THE CNTRL HIGH PLAINS. WIDESPREAD PRECIPITATION HAS DEVELOPED ACROSS ERN CO AND WRN KS IN AN AREAS OF STRONG LARGE-SCALE ASCENT AHEAD OF A NEGATIVELY-TILTED UPPER-LEVEL TROUGH EVIDENT ON WATER VAPOR OVER SRN HIGH PLAINS. AS PRECIPITATION INCREASES ACROSS THE MCD AREA OVER THE NEXT FEW HOURS...FORECAST SOUNDINGS GRADUALLY COOL THE LOWER TO MID-LEVELS ACROSS NW KS AND SW NEB SUGGESTING THE PREFERRED PRECIPITATION TYPE WILL BE SNOW. THE DENDRITIC GROWTH ZONE IS FORECAST TO BE NEAR 600 MB WITH AN ISOTHERMAL LAYER FAVORABLE FOR AGGREGATION IN THE 800 TO 700 MB LAYER. THIS COMBINED WITH INCREASING ISENTROPIC ASCENT WILL CREATE CONDITIONS FAVORABLE FOR HEAVY SNOW. SNOWFALL RATES WITHIN THE HEAVIEST BANDS COULD REACH 1 INCH PER HOUR ESPECIALLY LATE THIS EVENING AS THE UPPER-LEVEL TROUGH MOVES INTO THE REGION FROM THE SOUTHWEST. ..BROYLES.. 02/02/2016 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...GID...LBF...DDC...GLD... LAT...LON 38380038 38150155 38580195 40340173 40439946 39509919 38380038 NNNN