450  
ACUS11 KWNS 120534  
SWOMCD  
SPC MCD 120534  
ILZ000-MOZ000-KSZ000-120930-  
 
MESOSCALE DISCUSSION 0017  
NWS STORM PREDICTION CENTER NORMAN OK  
1134 PM CST FRI JAN 11 2019  
 
AREAS AFFECTED...EASTERN KS TO WEST-CENTRAL IL  
 
CONCERNING...HEAVY SNOW  
 
VALID 120534Z - 120930Z  
 
SUMMARY...HEAVY SNOW WILL FOCUS ALONG A CORRIDOR FROM EASTERN KS,  
ACROSS CENTRAL MO, INTO WEST-CENTRAL IL. SNOW RATES WILL BE ON THE  
ORDER OF 1"+ PER HOUR.  
 
DISCUSSION...WELL-DEFINED MID-LEVEL CIRCULATION HAS EVOLVED OVER THE  
CENTRAL PLAINS ALONG THE KS/OK BORDER NEAR MEDICINE LODGE (KP28).  
LARGE-SCALE FORCING FOR ASCENT APPEARS TO BE INCREASING AHEAD OF  
THIS FEATURE AND PRECIPITATION IS RESPONDING ACCORDINGLY. OVER THE  
LAST FEW HOURS THE CORRESPONDING BAROCLINIC LEAF IS SHARPENING WHICH  
SUPPORTS RADAR TRENDS OF AN EXPANDING/INTENSIFYING SHIELD OF HEAVY  
SNOW ACROSS PORTIONS OF EASTERN KS INTO CENTRAL MO. IT APPEARS A  
CORRIDOR OF HEAVY SNOW (1"+/HR) WILL ESTABLISH ITSELF OVER THE NEXT  
FEW HOURS FROM NEAR EMP IN KS, DOWNSTREAM JUST SOUTH OF THE KC  
METRO, INTO WEST-CENTRAL IL JUST NORTH OF THE ST. LOUIS AREA. HEAVY  
SNOW WILL LIKELY CONTINUE ALONG THIS CORRIDOR INTO THE POST-DAWN  
HOURS.  
 
..DARROW.. 01/12/2019  
   
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
 
 
ATTN...WFO...ILX...LSX...SGF...EAX...TOP...ICT...  
 
LAT...LON 38519602 39339349 39859055 38969025 38119244 37979556  
38519602  
 
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