Understanding temperature profiles in the upper and lower parts of the atmosphere can be very complicated when you have near freezing temperatures that span more than a hundred miles of land. What we experienced is what I will call a "Swiss Cheese" theory of an ice storm. Despite what you see on weather stations on tv, there are no clearly demarcated straight "east-west" lines that define the freezing line on a map. Instead, pockets of cold air and warm air can spread ununiformly across an area. This is what I think happened south of I-70 overnight. Some people in northern counties saw ice while the next county over saw rain and the county south of them saw sleet.
For the snow lovers out there, don't worry. Winter is not over. All indications are that it will be warmer than average with rain until about January 25th. After that the pattern looks to turn to a colder one to open February. Stay positive #BOTS fans.
URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE INDIANAPOLIS IN 327 AM EST SAT JAN 14 2017 INZ021-028>031-035>049-051>057-060>065-141630- /O.CON.KIND.ZR.Y.0001.000000T0000Z-170115T1800Z/ CARROLL-WARREN-TIPPECANOE-CLINTON-HOWARD-FOUNTAIN-MONTGOMERY- BOONE-TIPTON-HAMILTON-MADISON-DELAWARE-RANDOLPH-VERMILLION-PARKE- PUTNAM-HENDRICKS-MARION-HANCOCK-HENRY-VIGO-CLAY-OWEN-MORGAN- JOHNSON-SHELBY-RUSH-SULLIVAN-GREENE-MONROE-BROWN-BARTHOLOMEW- DECATUR- INCLUDING THE CITIES OF...LAFAYETTE...FRANKFORT...KOKOMO... CRAWFORDSVILLE...ANDERSON...MUNCIE...INDIANAPOLIS...TERRE HAUTE... SHELBYVILLE...BLOOMINGTON...COLUMBUS 327 AM EST SAT JAN 14 2017 ...FREEZING RAIN ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY... A FREEZING RAIN ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST SUNDAY. * MAIN IMPACT...FREEZING RAIN WILL RESULT IN LOCALLY HAZARDOUS TRAVEL CONDITIONS...ESPECIALLY ON BRIDGES...OVERPASSES AND UNTREATED ROADS AND SURFACES. ICE ACCUMULATION GENERALLY UP TO A TENTH OF AN INCH IS POSSIBLE THROUGH THIS AFTERNOON. AFTER A LULL TONIGHT...ADDITIONAL LIGHT ICING IS POSSIBLE SUNDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.
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