Tuesday, May 1, 2018

Active Severe Weather Day in Hastings, NE

ProbSevere was very helpful for hail and wind, but especially hail, which is the main threat as of late afternoon. ProbTor was lagging behind base data by a volume scan, which was critical as a tor warning was issued several minutes before probtor spiked up from 7% to 46%



GLM 1-min Total Energy overlaid with 1-min vis cued me in on areas of deep convective development. Additionally, ENI lightning data overlaid with GLM gave me a good indication of where anvil flashes were propagating away from the main updraft.

GLM readily caught my attention as energy was displayed as an image, with more intense lightning activity showing up 'hotter' in the magma color table.



Supercell that moved eastward just north of the KS/NE border exhibited high total energy while located in our CWA. It appeared that as the storm's total energy began to weaken as it moved away from our CWA, a confirmed tornado was reported in Gage County NE at 7:23PM local time (see bottom two images). Lightning jump?


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