Winter Weather Possible Sunday

While it's still a few days away, a low-end snow event is looking more possible for north Texas and southwest Oklahoma on Sunday. As we've seen time and time again, precipitation chances will look promising for our area days in advance and then suddenly go away. Hopefully this will not be the case this time around because we could really use the moisture.

A front will be nearly stationary across southwest Oklahoma tomorrow, causing a huge range in high temperatures tomorrow afternoon. 50s near & behind the front with 70s & maybe a few 80s ahead of the front down along HWY 380.

The front will pick up forward speed Saturday and push through the area. Fog is possible early Saturday morning. Temperatures will be cooler Saturday with highs only reaching the 50s.

Sunday boasts our best chance to see any wintry weather. An upper-level system to our west will swing through the Red River Valley over top of the cold air that will be in place at this time. Temperatures will hold in the low-mid 30s all day with an icy north/northeast wind. For now, the temperature profile of the atmosphere is such that snow would be our main form of precipitation, but we could see a brief period of sleet early Sunday before the entire column of the atmosphere dips below freezing.

GFS model temperature profile Sunday afternoon, supportive of snow.

In another view based on model guidance at this point, the atmosphere is certainly supportive of snow across Texoma.

GFS KSPS Model Output

NAM KFSI Model Output

What stands out in the white circles is the fact that within the snow growth region (SGR)–area between the pink lines– is good moisture content (high relative humidity) and negative omega (rising air).

It is still a little too early to throw around possible accumulation scenarios, but the trends are have been promising the past few days. Other forecast models such as the European model are also indicating the possibility for some snow.

Stay with Newschannel 6 Friday & Saturday and I'll keep you posted.