Thursday, December 7 Afternoon Forecast Discussion

Winter Storm Warming for Clarke (MS), Jasper, Jones, and Smith Counties through noon Friday.
Winter Storm Warming for Choctaw, Clarke (AL), and Wayne Counties through 6pm Friday.
Winter Weather Advisory for Kemper, Lauderdale, Newton, and Scott Counties until noon Friday.
Winter Weather Advisory for Greene, Hale, Marengo, and Sumter Counties until 6pm Friday.

It has been another cold and rainy day for us with rain showers mostly confined along and south of Interstate 20. As we head through the night, rain will drift northward and interact with cooler air. As it does, the entire atmosphere will cool to allow for rain showers to transition to snow afternoon midnight with snow showers possible through Friday evening.

Unlike most winter weather events, this one looks pretty solid that we should see a transition to all snow area wide. With cold air already in place and colder air still arriving, we should be cold enough that snowflakes will stay frozen all the way to the ground. Sleet looks unlikely and no freezing rain is anticipated.

The start time of snow looks after midnight with the heaviest snow showers falling from about 6am to 11am. Within this time frame, we could see heavier bursts of snow, especially in our Winter Storm Warning counties. Snow will taper off from west to east and north to south through the afternoon hours with frigid temperatures Saturday morning.

As far as amounts, that is easier and yet harder to nail down this afternoon. The northern extent of precipitation and the end time of snow makes actual amounts a little tricky. Locations not within a winter weather alert (Pickens, Winston, Noxubee, Neshoba, and Leake) will see less than an inch of snow. Winter Weather Advisory counties (listed at the top of the page) will see 1-2 inches of snow. Winter Storm Warning counties (listed at the top of the page) will see about 2 inches with locally higher amounts. The top end is hard to pinpoint as processes during the day could allow heavier bursts that will be tough to factor and ending time is not clear. Most accumulation will happen on grass, roofs, and other cold surfaces (like cars, bridges, and overpasses) while accumulations on roads (except bridges and overpasses) will be mostly melted snow with some slick spots on roads. Winter Storm Warning counties could see less than an inch stick on roadways, making travel very difficult Friday morning.

We all will have an issue with black ice forming Friday night into Saturday morning as lows drop into the 20s, and perhaps 10s with snow on the ground, causing all water to freeze. Temperatures will get back above freezing during the day on Saturday to melt most of the snow during the day with another black ice issue Sunday morning as water again refreezes. If you must travel, be very careful and watch out for icy spots on roadways.

After Friday, no more precipitation is anticipated for another week with lows back above freezing by Tuesday.