Several discrete storms are in progress across far W SD and NE WY, as well as having come out of SE MT. A few are showing rotation, especially the storm currently west of Sundance, WY. The storm south of Buffalo, SD is also quite impressive, with several of the lower tilt Level II scans showing > 70 dBZ reflectivity. I have seen peak reflectivities of as high as 79.5 dBZ! I've never seen anything that high before. And it's persistent as several scans have had > 77 dBZ max reflectivities in that storm. Current SPC RUC mesoanalyses show excellent deep layer shear of up to 60 kts in the area. THere is also good low level shear in NE WY. Thermodynamics aren't quite as good, as SBCAPE values are struggling to reach 2500 J/kg with moderate CIN. These storms appear to have fired along a N-S oriented dryline moving east across E WY.
ADD: The cell south of Buffalo has suddenly intensified and very intense inbounds are appearing on its southern flank from the perspective of KUDX. This has occurred within the last 15 minutes. The storm has grown meatier and looks to be taking on supercellular characteristics as outbounds also increase.
ADD: The cell south of Buffalo has suddenly intensified and very intense inbounds are appearing on its southern flank from the perspective of KUDX. This has occurred within the last 15 minutes. The storm has grown meatier and looks to be taking on supercellular characteristics as outbounds also increase.
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