Saturday, September 20, 2014
Update: Winter Weather on the Way
COLUMBIA, S.C. (WOLO) -- Another winter wallop is headed to South Carolina, and this time, it looks like Ice Man is showing up.
The National Weather Service in Columbia has issued a Winter Storm Warning in effect from 7 p.m. Tuesday through Noon Thursday. The primary concern is ice with some snow possible for the northern counties.
We have two waves of weather headed in our direction. The first one is expected to arrive late Monday and affect our forecast for Tuesday. Colder air will attempt to settle in tonight due to a wedge formation where cold air is forced into the Carolinas and trapping it for an extended period of time. However, the surface temperatures are likely not going to be cold enough to cause major travel impacts for Tuesday. The precipitation is expected to be mainly in the form of rain with some sleet. This particular system is not as wet in terms of the amount and duration of rain as the one expected moving into the area Wednesday, though it will be noticeable nonetheless. The northern counties may need to be a little more cautious as the colder air will affect those areas quicker than the central and southern Midlands.
As we head into Wednesday, two things are in play: 1) we are seeing more moisture move into the area from a second system, so we definitely will see some precipitation, and 2) the cold air will not be nearly as dominant as what we saw two weeks ago - the cold air will be from the wedge formation, a forcing much weaker than a high pressure system moving from Canada. This creates a bit of a problem because anytime melting occurs in any part of the atmosphere, snow goes away from the equation, and we start dealing with sleet and freezing rain, and that is more likely this time around, creating a messy situation for us. Expect a good chance for freezing rain during the day Wednesday, affecting travel for Wednesday into Thursday morning. I'm expecting ice accumulations close to 0.25 inches for the central Midlands. The northern Midlands may be lucky enough to see a dusting to maybe 0.25" of brief snow during the same time period, but icy conditions should be of primary concern.
After Thursday morning, we should see temperatures warming up to the mid-40s by the afternoon, allowing us to see a lot of improvement on the roads during the day.
We will keep you posted on the winter weather on ABC Columbia News and at ABCColumbia.com. You can also follow Chief Meteorologist Reg Taylor (@regtaylortv) and Jonathan Oh (@johontv) on Facebook and Twitter for the latest on this weather situation.
Wind: 13 MPH
Humidity: 46 %