Chinook

3D view of the storm at 2346z while the rotation area was at Bensenville, NW of Chicago 8 minutes later

I've never seen a 44 value of supercell composite just west of Chicago.

tornado with non-supercell at DIA boundary

Yesterday, there were a large number of 100 temperatures in the West, including Denver. It was 99 degrees officially in Fort Collins-CSU, breaking the record of 96 degrees in 2013. The electronic thermometer hit 100.0 degrees at Fort Collins-CSU. Boulder, high 99 degrees, broke a record of 98 degrees. Limon: 97. Greeley: 96. Pueblo: 102. Colorado Springs: 96. Lamar: 103. -- 6/11: NWS Boulder: twitter: This ties for the earliest calendar day 100°F on record for Denver (also in 2013). This is our 101st 100°F reading ever recorded in Denver (since 1872). -- A RECORD HIGH TEMPERATURE OF 95 WAS SET AT CHEYENNE WYOMING AIRPORT YESTERDAY. THIS BREAKS THE OLD RECORD OF 92 SET IN 2013. A RECORD HIGH MINIMUM TEMPERATURE OF 61 WAS ALSO SET YESTERDAY. THIS BREAKS THE OLD RECORD OF 58 SET IN 1918. -- THE TEMPERATURE AT DENVER INTERNATIONAL AIRPORT HIT 100 DEGREES. THIS TIES THE RECORD HIGH TEMPERATURE FOR THIS DATE, JUNE 11TH, THAT WAS PREVIOUSLY SET IN 2013. THIS ALSO TIES THE EARLIEST IN THE CALENDER YEAR IT HAS EVER BEEN 100 DEGREES IN DENVER. THIS IS 101ST OCCURRENCE, IN DENVER, THAT THE DAILY TEMPERATURE ROSE TO 100 DEGREES OR HIGHER. OF NOTE, 55 OF THESE OCCURRENCES HAVE BEEN RECORDED IN DENVER SINCE JANUARY 1, 2000. THE DENVER CLIMATE RECORD STARTS IN 1872. -- A RECORD HIGH TEMPERATURE OF 87 WAS SET AT LARAMIE WYOMING AIRPORT YESTERDAY. THIS BREAKS THE OLD RECORD OF 86 SET IN 2013. --

large supercell kept a broad and sometimes intense circulation going for multiple hours as it tracked southwards

over a 7 mile wide rotation

A significant tornado debris signature southwest of Lincoln Nebraska (21:57z-22:00z)

high/low/average of the day June 5 102/78/90 June 6 105/79/92June 7 , high 107, missing data for low temp June 8 110/84/97 June 9 109/84/97 June 10 112/87/99.5 (technically, 100 which is the earliest 100 degree daily average temperature)

looks like that tornado went south of Hocking Hills state park (caves and waterfalls) that I camped at about 3 times in my life.

storm has a tornado (new tornado) almost right in Springfield, OH (about to hit businesses on US-68)

tornado on the ground near Dayton

possible tornado with large hook echo, Las Animas Colorado area

3D view of the severe storm (non-tornado warned) east of the PUX radar

3D view of the large overhang of high reflectivity in northern Nebraska, including a rare 75dBz pixel on the base reflectivity (radar estimated 2.7" hail) And oh, by the way, 300mb winds are 100 knots over this storm.

The SPC has put out an enhanced risk of severe weather for the central plains tomorrow, that was the 17z outlook. Tonight's models show a large number of storms developing on the cold front in southern Nebraska. The shear could be 45 kt- 60 kt with CAPE values up to 2000 J/kg. Some supercells will form, with most likely a low storm-relative helicity and lower chance for tornadoes in most areas.

Today may be our first normal-looking summer day with dew points around 50 and scattered thunderstorms. My place has a dew point of 48 and there's already some lightning east of Estes Park.

Key West radar, some wind gusts well into the 30 mph range around Key West

local storm reports, including sub-severe reports, marine wind reports from today

I was away on a trip. Then I came back to DIA and got my car and all this rain happened. So, not very fun driving. It was 42 degrees. Major shock. It was 90 degrees when I left DIA.

13z outlook for wind and tornadoes is in the moderate category, and there is a 30% hatched outlook for hail (not shown)

There will be a high significant tornado parameter developing after 22z, toward Duluth. It is likely that several supercells develop in western Minnesota near the low pressure. The storms may develop in a squall line but I expect the shear to he high enough force supercells to occur. The highest dew points and storm relative helicity will in the eastern half of Minnesota.

This wall cloud and impressive small supercell went right by O'Hare and the Chicago suburbs.

The town name of "Wall" might describe the situation. Areas around San Angelo got hail, baseball to softball size.

possible severe watch coming for mid-Texas

SPC upgraded the outlook today for enhanced, including Dallas, Fort Worth, Austin, and Waco.