The National Weather Service has issued extreme cold watches for parts of central and southern Indiana, as well as parts of Kentucky and Ohio, noting temperatures dropping as low as 10 degrees below zero and windchills dropping as low as 25 degrees below zero.

STATEWIDE–Temperatures and wind chill factors will be in the single digits across Indiana this weekend. “The coldest air will arrive, though, Monday and Tuesday of next week,” said Jason Puma, meteorologist with the National Weather Service in Indianapolis. Puma says lows late in those evenings will be around 0.

NWS Indianapolis warns of hazardous weather, including freezing fog, sub-zero temps, and precipitation in Central Indiana.

An Arctic front will bring dangerously cold air into much of Indiana starting Sunday, with temperatures expected to plunge nearly 40 degrees.

A winter storm watch for central and southern Indiana has been upgraded to a warning as the state braces for cold temperatures.

A clipper system, which originated in the Canadian Rocky Mountains, is pushing colder air into the Midwest, a meteorologist said.

The Bloomington area has a 100% chance for snow on Friday, according to the National Weather Service. The NWS is now predicting 3 to 4 inches for the Bloomington area, up from 1 to 2 inches it expected previously.

The second winter storm of the week is moving in, and the National Weather Service has updated its forecast for Friday. Here's what they're saying.

Winter storm warning issued for southern Indiana, winter weather advisory for central Indiana. Snowfall and hazardous road conditions expected.

The National Weather Service forecast calls for the high potential of six or more inches of snow beginning Sunday morning.