Updated: Sunday Morning 1/9/2011
Significant winter storm late tonight through early Tuesday morning…
A WINTER STORM WARNING has been issued by the National Weather Service in Columbia. The warning is in effect from late tonight through Tuesday Morning. This includes all of the midlands, Pee Dee, and the Central Savannah River Area.
Temperatures this morning have dropped well into the 20s across much of the forecast area. Expect a sunny start today with a cloudy finish. Temperatures will struggle to reach the lower 40s by the afternoon. Winds will be much lighter today compared to yesterday.
Looking at the radar this morning, widespread moderate to heavy rainfall is extending over much of Eastern and Southeastern Texas. This is associated with our area of low pressure that has been advertised to form across the Nothern Gulf of Mexico. This precipitation will continue to spread eastward throughout today. Nothern and Central Mississippi is its first target with ice and snow, then impacting Northern and Central Alabama and Georgia by tonight.
Precipitation will begin to move through the Carolinas late tonight. The precipitation is expected to start after Midnight in the form of snow. The snow will begin to accumulate quickly since our forecast area has seen below normal temperatures and ground temperatures are colder as well.
By the Monday morning commute, sleet will begin to mix in with the snow across the Southern Midlands. There may be periods of moderate to heavy snow across the Nothern and Southern Midlands and the Pee Dee. By late-morning Monday, sleet will be the main precipitation type across the Central Savannah River Area and Southern Midlands with Snow and sleet across the Nothern and Central Midlands.
By early-afternoon Monday, sleet will changeover to freezing rain across the Southern MIdlands. Sleet will become the precipitation type across the Southern Midlands, Central Savannah River Area and the Pee Dee. Mostly snow still for the Nothern Midlands.
By mid-late afternoon Monday, freezing rain will continue across the Southern MIdlands, a mix of sleet and freezing rain will be likely across the Central Midlands and the Pee Dee. Sleet will be the precipitation type across the Nothern Midlands.
By Monday evening, the precipitation becomes lighter. Most of the forecast area will see periods of freezing rain and freezing drizzle. Light freezing drizzle will continue overnight and into early Tuesday Morning before ending.
Before the transition of ice, The Nothern and Central Midlands could see 3 to 5 inches of snow. This would include Newberry, Irmo, Columbia, Camden and Lexington. 1 to 3 inches of snow is likely across the Southern Midlands and the Pee Dee.
There could be significant icing across the Pee Dee, Southern Midlands and Central Savannah River Area, anywhere from a quarter to a half an inch.
Temperatures will only climb to around the freezing mark across most of the Midlands.
This forecast may change. A more detailed forecast for the next 48 hours for the Nothern Midlands, Central Midlands, Pee Dee, Southern Midlands, and Central Savannah River Area will come later this afternoon.