2/3rds of Lower 48 states has a snowcoverDecember 27th, 2012 at 1:43 pm by Bill Steffen under Bill's Blog, Weather
Click the map to enlarge. Look at the swath of snow from the storm from N. Texas to New England. It’s hard to see, but there’s a tiny dot around Muskegon/Grand Haven without snow on the ground. 65% of the Lower 48 States has a snow cover this morning. Last year on this date, there was only a 24.3% U.S. snow cover. Also, the latest GFS has a massive Arctic outbreak across the eastern U.S. around Jan. 4. Lake Michigan makes a difference…the model has Green Bay -12 Friday 1/4 AM and Traverse city +12. It’s the GFS model and that does have a tendency to overdo cold outbreaks in the long term, but it it’s right, we’d have highs of 10-15 for at least one day with lake-effect snow showers a certainty. The European model is also latching onto a cold outbreak. It’s got the 850mb temperature in G.R. down to -17C (1.4F) on Tues. 1/3 with lake-effect snow. Both models look pretty chilly for the first week of Jan. There’s a slight risk of severe weather in LA/MS tomorrow.