Monday/Late Afternoon

WEATHER CODE: YELLOW ***Snow later tonight into tomorrow***

Very complex weather situation setting up tonight. A upper level disturbance showing up well in Nebraska on the latest Satellite imagery will move through Kentuckiana beginning well after midnight. This system wouldn't be to much of an issue, however temperatures tonight will dip into the upper teens and lower 20's. This will make for rather high snow ratios across the entire region. Right now were looking at a 15:1 snow ratio rate. What this means is for every 1 inch of moisture we would get 15 inches of snow. Now tonight we will NOT be looking at this much QPF developing across the region as this is a rather weak system. However, snow ratios will be higher than usual so a 1-3 or 2-3 inch snowfall is looking rather probable. I would not be suprised to see isolated areas pick up 4 inches of snow especially across Southeast Indiana where the greatest lift will be. The National Weather Service in Lousville has issued a WINTER WEATHER ADVISORY beginning at 4 AM tonight and continuing through 7 PM tomorrow. Slick roads will likely develop later tonight through tomorrow as air and road temperatures will be well below the freezing mark. The map below is from the NWS in Louisville and they seem to have a good handle on snowfall amounts. For those of you that live in the Indianapolis viewing area, I have no idea why a winter weather advisory has not been posted. Snowfall amounts will be the same in this area so I don't see why an advisory would not be needed. Please imply your winter driving skills tomorrow as roads will become slick and hazardous. STAY TUNED!