Beautiful stack-of-plates supercell structure |
Tuesday, June 18, 2013
6/14/2013 Dodge, NE Supercell
Walker and I targeted the area between Norfolk and Columbus, NE on this slight risk
day. This region had strong surface convergence, moderate instability,
and sufficient shear for supercells. The only concern was the strong
capping inversion, which had us waiting in the Humphrey, NE park for a
lengthy part of the afternoon. As strato-cumulus clouds took over, we became
increasingly concerned about (the potential lack of) storms firing in
our target region. We actually began to bail south toward less organized
storms and, not even 10 minutes later, the first radar echo appeared
northeast of Humphrey. We returned north and intercepted the slowly
maturing storm near SR-91 and SR-15. The storm slowly matured into a
majestic stack of plates supercell with numerous cloud-to-ground lightning strikes. The slow
moving storm provided eye candy for a good hour or so, before convection
to the south interacted with it, causing it to become increasingly
disorganized. We punched west and then southwest toward Grand Island,
stopping to take in a bit of lightning after sunset near Central City,
NE. The night ended at a Fairfield Inn in Grand Island, NE (text modified from Walker Ashley).
Time lapse of the supercell
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