I love a good T-Storm - miss them as we do not get many out in the pacific northwest. From Cliff Mass:
Thunderstorms on Friday Night and Saturday Morning
Get your lightning rods handy, because there is a good chance that a large area of thunderstorms will sweep northward over Washington on Friday night and Saturday morning.
The action is associated with the landfall of an upper low on the southern Northwest coast.
More at his site - hope that these do not trigger any wildfires. We have been lucky this season.
Attended a conference in Rapid City, South Dakota a number of years ago and there was a wonderful T-Storm almost every evening. Loved it. Beautiful part of the country.

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