I've talked before about Mesoscale Convective Vortexes -- and we had a pair of them over Lake Superior Wednesday. I pulled up 3-D radar data just before the storms made "landfall":
Mesoscale low pressure systems like this are not common, but are also not unprecedented. Although usually associated with thunderstorms, the lake-effect snow Sunday was convective enough to spawn them. Here's a look at close-up shots from the MODIS satellite archive:
My friend, Scott, over at the CIMSS satellite blog has satellite loops, wind maps and more in-depth information. Below my radar animation, he says:
"As the feature approached the Upper Peninsula of Michigan, a secondary mesovortex could be seen to the east-southeast of the larger primary mesovortex. These mesovortices produced bands of heavy snowfall and strong winds (with gusts as high as 60 mph offshore at Stannard Rock, and 46 mph inland at Marquette), which reduced surface visibility to less than 0.1 miles at times."
The Blizzard of 2016 had many similarities to the Blizzard of 1996. Will there be a similar flood?
The Blizzard of 2016 flooded coastal communities and piled up over 40 inches of snow, with incredible drifts. Here are the stats.
The Blizzard of 2016 has begun. Here are some historical and model maps.
The NCEP SREF snow plumes are in; now the snow-forecasting fun begins.
Yes, it's true. The possibility of a snowstorm in the East (the first this season for coastal areas).
We've had three named tropical cyclones already this month, two in the Pacific, and today one in the Atlantic.