Storm Next Week?November 19th, 2012 at 5:50 pm by Bill Steffen under Bill's Blog, Weather
Check out the European model for next Weds. That’s a big, windy 983 mb low near Milwaukee. The FIM model has an Arctic Blast that would really get the lake-effect snow machine cranked up. It has the 1000-500 mb thickness in G.R. down to 505 in G.R. next Thursday with a stiff, cold NW wind and northwest flow lake-effect snow for at least the U.P., NW Lower and the SW corner of Michigan. The GFS is also on board with some snow and a good shot of Arctic air coming down into the Midwest/Great Lakes. Bottom line – enjoy the mild weather this midweek. A more wintery pattern is on the way. Also, Autumn snow extent in Eurasia is the greatest recorded since the start of the modern satellite era in 1979, (data from the Rutgers University Global Snow Lab.). Here’s current snow cover in Asia and current snow cover in N. America (note the ice starting to form on the west edge of Hudson Bay and also in Lake Winnipeg. Here’s the North American snow map from Rutgers. Here’s the raw figures from Rutgers (Snow Lab) for N. Hemisphere (and Canada). The data shows Canada with a 17% above average snow cover and the Northern Hemisphere at 11% above average. This would be another point on the side of a colder winter for Michigan. The white snow reflects more energy (heat) from the sun back to space and allows faster radiation of heat to space on clear nights. Here’s the Lower 48 temperature anomaly map for the past two weeks. Check out this cool video (t-storms, tornadoes, time lapse, volcanoes, etc.).