MichiganLion

19 minutes ago, Chinook said:

A supercell in the metro area has left a swath of large hail, and there may be a tornado at some point here. (no tornado confirmation that I know of.)

 

edit: eastern supercell on I-76 has intensified to 70 dBz.

I live in Broomfield.  That was a definite case of "oh, it's thundering a little bit outside, let me look outside.  Holy crap at the look of this Supercell!"  Then, it's hailing up to golf-ball size 1 minute later.

No tornado confirmation that I have heard of either, but a legit powerhouse of a supercell.

33 minutes ago, CoachLB said:

Up to 19 confirmed tornadoes across Ohio now.

Per my research (and I may be wrong here), 19 tornadoes during one event ties this for 2nd all-time since 1950, in terms of the biggest Ohio tornado outbreak, by number of tornadoes:

1. Sunday July 12, 1992 - 29 Ohio tornadoes.  (that's A LOT but unlike all the other events on this list, it doesn't ring a bell AT ALL.  Not sure what the triggers were for this event.  There were a couple of F3 twisters).

2. Evening of May 27, 2019 into morning of May 28, 2019 - 19 Ohio tornadoes.

2. Sunday November 10, 2002 (Van Wert F4 day) - 19 Ohio tornadoes.

Some other historic Buckeye state events:

4. Sunday April 11, 1965 (Palm Sunday) had 11 Ohio tornadoes but they killed 60.  Highest in terms of death count.

5. April 23, 1968 (Wheelersburg F5) had 6 Ohio tornadoes.

6. Tuesday April 3, 1974 (Super Outbreak, Sayler Park and Xenia F5s) had 14 Ohio tornadoes.

7. Friday May 31, 1985 (Northeast Ohio, Niles-Wheatland F5) had 11 Ohio tornadoes.

8. Friday April 9, 1999 (Blue Ash F4) had 5 Ohio tornadoes.

9. Saturday night June 5, 2010 into Sunday Morning (Toledo area-Millbury F4) had 5 Ohio tornadoes.

10. Friday March 2, 2012 (the strongest tornadoes stayed JUST south and west of Cincinnati - though one F3 did clip Moscow, southeast of Cincinnati) had 7 Ohio tornadoes.

Interesting night in Denver --- multiple post-Midnight rounds of storms that dropped up to 1.5-inch hail, accompanied by some of the more vivid lightning and loud thunder I've seen here.

Definitely not a night for sleeping!

Definitely prayers for those who live in Dayton and the Miami Valley.

I used to live in Cincinnati --- this event reminds me a bit of one from the evening of Tuesday June 3rd, 2008.  F0 and F1 twisters that evening (I distinctly remember one of them hitting Oxford) so likely not as strong as tonight.   They could have been significantly worse, but a severe event earlier in the day had left a narrow stable layer of air near the ground. 

But Supercells just to the north of a warm front, that stayed discrete for a considerable period of time and kept on producing, even after dark..  A pattern to look out for.

3 hours ago, Chinook said:

with sufficient CAPE and shear for supercells, these cells are at least trying to be supercells and dropping 1" hail in a few spots

Those storms were pretty legit.  1-1.5 inch hail where I live (Broomfield) around 8:30 MT - a couple hours after your post.