Sunday, December 14, 2008

Wintry look to the work week

Arctic cold front keeps chugging south and now is from Southern Oklahoma, Southeast Missouri to Northwest Illinois. As temperatures in the Northern Plains never got above zero this afternoon. This front will continue to slide south and will be by Monday morning to Central Texas, Western Tennessee and Western Ohio. This front will eventually lose the southward push and this week's wintry weather will be just north of the stalled front. As at the mid levels 500mb(18,000ft) the winds are in a southwest flow from Arizona to New York. The fast flow will keep from large storms from forming but will eject out many pieces of energy. Each shortwave will produce some precipitation along and north of it. So from northern Oklahoma and the Central Plains east to north of the Ohio Rives a mixture of Freezing rain, sleet and snow will be possible. Some heavy rains will also be possible from Arkansas, Tennessee and Kentucky. This pattern is very Cold for the Northern Plains with several days below zero. While the Southeast really starts to heat up as the Southeast ridge builds and allows temps in the 70s and 80s.

So forecasts will change daily as the models are all over the place with the cold air and warm air battling. Keep up with all the local forecast as there will likely be some major travel issues this week with the ice and snow. Here is the Snow Cover from the Latest GFS by Friday afternoon of this week. I think the snowcover will be a little further south as I believe is surging the warm air to far north. So the southern edge will be from Northern Oklahoma to Saint Louis to Cincinnati. Here is my snowfall and ice areas of concern through Friday.
Stay Tuned a very fun time around the US weather wise.

No comments: