New SPC outline for Heavy snow.
WS STORM PREDICTION CENTER NORMAN OK
0634 AM CST WED FEB 24 2016
AREAS AFFECTED...E-CNTRL IL...NWRN IND...SWRN LOWER MI
CONCERNING...HEAVY SNOW
VALID 241234Z - 241730Z
SUMMARY...SNOWFALL RATES WILL APPROACH ONE INCH PER HR THROUGH LATE
MORNING ACROSS E-CNTRL IL INTO SWRN LOWER MI. STRONG NELY WINDS WILL
CREATE LOCALIZED REDUCTIONS IN VISIBILITY.
DISCUSSION...RECENT RADAR TRENDS SHOW THE NEWD EXTENSION OF A
DEFORMATION BAND OF SNOW FIRMING OVER THE PAST 1-2 HRS FROM E-CNTRL
IL INTO NWRN IND. HERE...SFC OBS INDICATE TEMPERATURES ARE IN THE
MID-30S F...BUT CONTINUED WET-BULB/DYNAMIC LOW-LEVEL COOLING WILL
SUPPORT A PREDOMINANT PRECIPITATION TYPE OF SNOWFALL. THE PARENT
700-MB LOW WILL SHIFT NEWD OUT OF THE LOWER OH VALLEY...MAINTAINING
A DEFORMATION ZONE FROM CNTRL IL INTO SWRN MI THROUGH LATE MORNING.
MULTIPLE HOURS OF SNOWFALL RATES NEAR 1 INCH PER HR WILL BE POSSIBLE
AS THE PRIMARY BAND EXHIBITS LITTLE MOVEMENT. NELY WINDS OF 20-25
MPH WITH HIGHER GUSTS WILL ALSO LEAD TO REDUCTIONS IN VISIBILITY.