Rotating storms in progress in northeast Nebraska ATTM. Storm in Pierce Co., NE showed very impressive (albeit broad) rotation for about 4 scans on GR2 (so I guess it would be considered a supercell). No tornado reports on it yet, but it is TOR-warned. Storm to its southwest also weakly rotating persistently. Pierce Co. storm has had shear values of up to 100 kts coincident with spikes in spectrum width, so there's reason to believe something nasty was going on in there at least briefly. Funny thing about these storms is they are in an environment that is not typically conducive for supercell development, with 500 mb flow very weak (<30 kts) and SRH at best 200 m2/s2. The 0-6 km shear and effective shear parameters are hardly even represented on SPC's mesoanalyses.
Bow echo also currently in progress across NW NE/SW SD. It seems to be moving from an area of no SBCAPE to an area with much better SBCAPE. Shear is also quite good out west, where the advancing trough is.
I know some severe storms have also erupted near Wichita, but I haven't taken a good look at them.
ADD: "bowing" cell also headed straight for KGLD. Cool signature on radar: the outflow is obvious, with >40 dBZ reflectivities in places. Storm is leaning HEAVILY downwind. A look at a vertical cross section shows just how badly the storm is tilting.
Bow echo also currently in progress across NW NE/SW SD. It seems to be moving from an area of no SBCAPE to an area with much better SBCAPE. Shear is also quite good out west, where the advancing trough is.
I know some severe storms have also erupted near Wichita, but I haven't taken a good look at them.
ADD: "bowing" cell also headed straight for KGLD. Cool signature on radar: the outflow is obvious, with >40 dBZ reflectivities in places. Storm is leaning HEAVILY downwind. A look at a vertical cross section shows just how badly the storm is tilting.
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