A well-defined train of wind shear vortices was revealed on GOES-16 Water Vapor images — Upper-level (6.2 µm), Mid-level (6.9 µm) and Lower-level (7.3 µm) — propagating westward over the Great Lakes on 07 June 2017 (above).A larger-scale view using Mid-level 6.9 µm images (below) showed additional (and larger) vortices which were moving eastward over... Read More

GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testingThe strong pressure gradient around a Low Pressure system over Alberta and Saskatchewan caused strong winds across northern Montana on 24 May 2017, and blowing dust was the result, especially in Hill and Blaine Counties. The visible animation, above, from 1707 to 1802 UTC... Read More

Frequent images we obtain from #GOES16 show motion in the atmosphere nicely. Here’s a great loop of fog in the Strait this evening. #wawx pic.twitter.com/f0HI1yS8ab — NWS Seattle (@NWSSeattle) May 21, 2017 ** The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing. **As seen in... Read More

* The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing. *A significant outbreak of severe thunderstorms developed on 16 May 2017, producing damaging winds, large hail and tornadoes from Texas to Wisconsin (SPC storm reports). On the northern end of this outbreak, hail as large as 3.0 inches... Read More