Winter Storm "Ozzy Osbourne" is on our doorstep: light rain this evening is expected to change to light freezing rain as the temperature plummets overnight.
Until now, it appeared that the rain would leave just before the temperature dropped below freezing, sparing us from any ice. However, the National Weather Service now expects that we could see some icing. Of course, any freezing rain is too much freezing rain.
Cape Girardeau County is under a Winter Weather Advisory from 10 PM until 5 AM tonight. With a temperature of 40°F at 4 PM at the Cape airport, we're not in imminent danger, but the colder air is moving this way. Farmington has already dropped to 32°F.
The advisory states:
LIGHT FREEZING PRECIPITATION IS EXPECTED TO START LATE IN THE EVENING...MAINLY IN PARTS OF SOUTHERN ILLINOIS AND ADJACENT PARTS OF SOUTHEASTERN MISSOURI...THEN IN SOUTHWESTERN INDIANA A FEW HOURS LATER AS TEMPERATURES DROP BELOW FREEZING.
ELEVATED SURFACES...SUCH AS UNTREATED BRIDGES AND OVERPASSES... WILL BE THE FIRST TO ACCUMULATE LIGHT AMOUNTS OF ICE. THIS ICE WILL BE HARDER TO SEE AT NIGHT...AND WILL MAKE TRAVEL HAZARDOUS.
PAVEMENT TEMPERATURES ACROSS THE ADVISORY AREA ARE CURRENTLY IN THE MIDDLE TO UPPER 30S AND WILL COOL OVERNIGHT...POSSIBLY TO THE FREEZING MARK. THIS WILL BE ESPECIALLY TRUE IN NORTHERN PARTS OF SOUTHERN ILLINOIS AND ADJACENT PARTS OF SOUTHEASTERN MISSOURI...WHERE AIR TEMPERATURES ARE EXPECTED TO BOTTOM OUT IN THE MID TO UPPER 20S. ON LESSER TRAVELED...UNTREATED ROADS... LIGHT ICE ACCUMULATIONS ARE LIKELY. THIS WILL CAUSE SLIPPERY DRIVING CONDITIONS.