Chinook

prelim tornado reports

Huntley/Lake In The Hills and Elgin/South Elgin had preliminary tornado reports

This is a confirmed tornado by Hodgkins

This 12-hour precipitation estimation shows the impact of the overnight MCS, starting in South Dakota and now in Iowa. There were severe wind reports in northeast Nebraska and around Sioux Falls, South Dakota. The big MCS right now appears to have been from two merged MCSs that were kind of separate at 12:50z. Otherwise, there were numerous areas of rain in IL, IN, and OH.

and, I might add, uncomfortable dew points along the coast, 77 dew point at Farmingdale NJ

radar at 3:34 shows the flash floods are scattered from northern New Hampshire (not shown on map) to Raleigh-Durham with perhaps multiple dangerous situations in NY/PA

it makes you wonder about the human impact. The storm tracked through Karval (almost), Haswell, Wiley and Lamar. I wonder who was outside their homes or walking outside at 8PM-10PM in those places. Or, what livestock might have gotten injured.

The big storms of the night are probably getting going right now around Hugo, Colorado. Effective wind shear is pretty nuts right now.

Welcome to tropical Colorado!

The Wyoming weather indicator is just a standard chain, hanging downward, located at NWS Cheyenne. If chain is at 45 degree angle: Wyoming breeze. If chain is at 90 degrees to the vertical: Wyoming hurricane! If chain is white: snow.

As some have said (ALEK?) Cooler by the lake! With a dew point of 73 over the water

Some lightning and hail a 6:23pm before fireworks

Loveland is about to get a lot wetter just a few hours before the fireworks at Lake Loveland

Happy summertime! (note: I have cut the parts of this image with license plates)

That actually kind of happened to me too. There was 4:00AM thunder, which is just irritating in the sense that I couldn't enjoy the storm. The Toledo area got 0.41-1.65" on COCORAHS with a lot of that 1.65" powered up by the 4:00AM thunderstorm. Some years, 1.0" wouldn't be cause for a lot of special attention. This 24-hr radar based precipitation estimation shows that the Maumee Valley and Ann Arbor were big winners. This was a weird storm system. On the note of drought, a lot of places have waited a long time to get 1.0" in one day

The dew points of 75-80 in lower Ohio Valley

Denver has a record rainfall, of a type. I checked the NOWDATA precipitation accumulation plot for April 22-June 30: 12.05" of rain at Denver, maximum of all time periods of exactly these calendar days.

So we finally get some rain to help the corn crops on a holiday weekend (sort of)

The GFS has around 45 kt of shear in Illinois for the storm development tomorrow, so that's pretty decent for general severe weather.

I think this is the first 68 dew point at my place in this droughty summer. Crazy.

And hail went right through downtown Denver again

Tornado warning, and a supercell at Hooker, Oklahoma, is ahead of a line or multicells. So the HRRR had some accuracy on that particular idea. It's actually pretty amazing that the convective mode can be predicted well sometimes. other note; run a COD 96-frame or 200-frame satellite loop and overlay 500mb over the longwave IR or water vapor IR channel. It's inspiring.

The cap is winning right now

Here's a thing I don't use very much. COD satellite zoom-in with overlay of analysis (CAPE in this case). New storms approaching 3000 J/kg