This was one hell of a long day. Started the day in Scotts Bluff - met up with Scott Blair and Eric Nguyen. We intercepted tornado warned supercells - we even heard sirens blazing in Authur.
The first supercell developed in eastern Wyoming and drifted towards Scotts Bluff. This became tornado warned as it organised near the city. I filmed excellent timelapse of the mesocyclone. We headed further east and all I can say is Wow!! The circular structure was magnificent - high contrast and with green tinge!
This storm gradually lined out and we headed east for a developing supercell but the immense distance and lack of road choices (including a wrong choice) cost us getting much ahead of it to see any funnels and the main mesocyclone. We did get glimpses of it as well as timelapse of an approaching mesocyclone north of Authur. The anvil lightning and bolts were incredible. We saw a small grass fire that had been started by lightning.
Finally the last attempt to get decent structure had to wait until we got to North Platte.
From here we decided to cross the border - not before getting hammered at McCook during our meal - some excellent footage of blasting winds and rain - only small hail though. Lightning was as per normal very frequent but some explosive thunder within the core near Hoxie.
Regards,
Jimmy Deguara