![GOES-16 Mid-level Water Vapor (6.9 µm) images [click to play animation | MP4]](https://cimss.ssec.wisc.edu/satellite-blog/images/2020/11/mn_wv-20201101_160115.png)
GOES-16 Mid-level Water Vapor (6.9 µm) images [click to play animation | MP4]
A northwest-to-southeast oriented cross section of RAP40 model fields along line segment A-A’ (below) showed a deep pocket of positive Omega (upward vertical motion, yellow to red colors) that aided in development of the cloud band along the Minnesota Lake Superior shoreline. Note that this Omega feature was vertically tilted in an “upshear” direction (toward the northwest), and extended upward to the 350-400 hPa pressure level. There was also an increasing upward component of the ageostrophic vertical circulation, which was likely the initial forcing mechanism leading to formation of the standing wave cloud and standing waves seen on Water Vapor imagery. As the boundary layer wind speeds diminished during the day, the magnitude of the upward forcing also began to decrease.
It's been windy overnight! Here's a snippet of the list of the strongest wind reports we've received in the past 24 hours. The entire list, which includes stations sorted by value and also by location then by value is found at https://t.co/hEUsiIIHzJ. pic.twitter.com/qIliwobKqL
— NWS Duluth (@NWSduluth) November 1, 2020