{"id":27293,"date":"2020-05-20T00:00:00","date_gmt":"2020-05-20T08:00:00","guid":{"rendered":"http:\/\/stormbruiser.com\/chase\/?p=27293"},"modified":"2020-11-06T17:21:46","modified_gmt":"2020-11-07T01:21:46","slug":"may-20-2020-glendo-supercell-and-pawnee-lightning-show","status":"publish","type":"post","link":"http:\/\/stormbruiser.com\/chase\/2020\/05\/20\/may-20-2020-glendo-supercell-and-pawnee-lightning-show\/","title":{"rendered":"May 20, 2020 Glendo Supercell and Pawnee Lightning Show"},"content":{"rendered":"

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Start: \u00a0Cheyenne<\/p>\n

Brunch: \u00a0Cheyenne\/Village Idiot<\/p>\n

End: \u00a0Sterling, CO<\/p>\n

406 miles<\/p>\n

SPC Day One\/20Z<\/a><\/p>\n

SPC Mesoscale Discussion 643<\/a>\u00a0 \u00a0SPC Mesoscale Discussion 648<\/a><\/p>\n

SPC Mesoscale Discussion 651<\/a><\/p>\n

Storm Reports<\/a><\/p>\n

Bob’s account<\/a><\/p>\n

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Surface Map 22Z<\/p>\n

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Moisture was surging northwestward along the North Platte River Valley into east-central Wyoming this afternoon. \u00a0Upslope flow against the Laramie Range in advance of a trough that was ejecting out of the Great Basin was providing a good severe-weather chance. \u00a0But, as has been the case for much of May, the low-level moisture (mid-50 dew points) was just “so-so” and was not ideal for tornadoes. \u00a0SPC drew a little 5-percent tornado area from about Chugwater to almost Newcastle.<\/p>\n

We had an easy drive to watch towers develop in the vicinity of Wheatland. \u00a0The first good cell was a bit west of I-25 and southwest of Glendo, and the second good cell was WNW of Glendo. \u00a0These featured some decent mid-level rotation, some scary lowerings, and maybe a funnel or two. \u00a0We watched the second one approach from a spot just southwest of Orin, along I-25. \u00a0A medium-high updraft base approached, but coolish outflow preceded it. \u00a0We were not going to get a tornado from this storm. \u00a0Here is a slew of images for this part of the chase:<\/p>\n

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