Chinook

Midnight- these high-reflectivity storms in SW Iowa must be dumping rain and hail. I bet the lightning is impressive, considering that lightning is so easy to see at nighttime.

I could see some nice small lenticular clouds this morning. From the satellite image, it looks like there was a wide lenticular cloud around Boulder. The mountains look white again. Normally the satellite image would show more gray above timberline.

Tornado at Charleston! Tornadoes reported near RLX radar and about 3-4 miles SE of Charleston. This area has some steep hills on either side of the Kanawha River.

No tornado warnings this year in eastern Wisconsin, northern Michigan, Aberdeen SD region.

Some of the convection-allowing models show heavier storms in Cincinnati and Columbus tomorrow. The Ohio Valley area should have over 40 kt winds at 500mb, and convection should develop in some areas in OH and KY.

I did a little bit of storm chasing after taking a picture of a towering cloud (vertical picture) towering cloud low clouds radar (6/20, severe hail in Fort Collins. Low cloud pictures above are my view of this from the south, on State Highway 392 (road to Windsor) west of I-25 radar from today (6/21) . A storm developed rotation and large hail southeast of Denver

SPC is continuing with the 15% wind and 15% hail over a broad region of the Midwest, as well as some 2% tornado areas. It is almost identical to the previous 17z outlook (Day 2).

There is a lot of model agreement on a fast-moving squall line continuing overnight, moving into northern Missouri and western Illinois in the mid-day hours, 16z to 18z. Models have varying solutions after 20z but the squall line may make it into Indiana. I am wondering if things will work out to have a lot of wind reports in the hours before noon CDT. This is the HRRR model for 14z. Surely this would be quite unusual to have have so many 70dBz storm cores at 14z.

Here is a map of the storm reports, up to 647pm eastern. There is one report of 3 waterspouts. Obviously this is a notable severe weather day for this area.

Lots of scattered thunderstorms affected eastern Colorado and eastern New Mexico today, including the southeast Denver area. I heard there was a hail-soaked parking lot at NCAR (Valmont Drive, Boulder)

I got a video of a brief thunderstorm SE of Loveland and SW of Greeley. It was right at that time in the evening when you can easily see distant lightning bolts. I guess the lightning wanted to go down, then up.

picture from 6/15 (yesterday). Mammatus clouds from a fairly average thunderstorm

12 tornadoes today, widely scattered across the country. The tornado reported in Texas didn't look like it was from a mesocyclone. edit; another confirmed tornado in Indiana

It has been above 85 degrees once this year. Meanwhile on the West Coast,

I seem to remember that the GFS has had some problems in the summertime with dew points too high (75-80 degrees) in generally moist time periods in the Midwest. I wonder if this upgrade may improve that somehow.

Storms have blown up around Denver. There have been some hail reports near the north side of DIA. I'm sure there were a few delayed flights this afternoon.

That particular picture was from June 5th, when it rained in Fort Collins, but not much at my house. Last night (June 6) I saw a distant storm with bright lightning within the cloud at 10:00PM, to the south. The radar said it was near the north Denver Metro, so it was farther away than I thought.

Nice storm chaser pic of a lightning bolt near Fort Collins and Loveland

Another possible tornado in Ohio (SE of Mansfield)

Fort Collins was -5.9 F for the month with 2.92" of precip and 3.0" of snow. So, once again, very unusual to have so much of this year below normal. I think most days since February 1st have been below normal. My place got 2.12" of precip and 3.2" of snow. (Loveland Co-op observer had 2.69" for the month, so I may be a bit wrong on my calculation.) Mayjawintastawm, (as of 3:16) it looks like you have now had some storms at or near your place for 3 straight days Raindance-- did you get those hailstones in your yard?? Edit: 4:14PM - another heavy rain storm coming though Littleton

Oh, you mean like this St. Louis Cardinals game that got delayed?

Some 55-60 dBz severe-warned storms near Wyandotte, MI. I wonder if we will get a report from Michsnowfreak on this.

Another possible tornado about 20 mi from DIA (red dot, northwest of the radar)

One of the tornadoes in Colorado was about 1 mile south of FTG airport, that is, 1 mile or more from the radar tower. I wonder how close it got to doing damage to the radar or the hangar/terminals at FTG. Otherwise, it seems that other tornadoes in NE Colorado had no damage to structures.

Scattered severe storms could affect the Front Range and plains of Colorado and Wyoming tomorrow. 2000 - 3000 J/kg of CAPE should exist with daytime heating. Dew points will be 50 degrees and above.