Highs today reached 85-90 with heat indices peaking at 88-95.
It appears that a single severe storm produced much of the damage in the area this afternoon. This intense cell tracked from northeast Benton through southern White, far southwestern Carroll to northern & then east-central Clinton counties.
Near & with storm first produced measured gust of 42 mph at the Kentland Airport & 36 mph at Remington, followed by 39 mph 3 E Fowler.
Crops were shredded by hail & wind 5 miles south of Wolcott to the Brookston area. Trees & limbs were blown down around & in Brookston & dime-sized hail whitened the ground. Some of the hail drifted several inches deep around gutters & ditches. Tree & crop damage was noted from the hail, as well.
Numerous tree limbs & trees were downed southeast of Brookston by winds of at least 70 mph. Severe winds just slipped by 5 W Delphi observation site with measured gust there of 48 mph.
Numerous limbs & trees were also down just southeast of Delphi.
Trees & limbs were also downed northeast of Battle Ground with one barn receiving roof damage. A gust of 60 mph was estimated 4 miles east-northeast of Battle Ground & CR 900 N was blocked by fallen trees.
Rossville area was next in line with wind gust reported at 70 mph with many trees & limbs downed. Pea to dime hail was reported with hail size peaking at 0.70" northeast of Frankfort. A gust of 55 mph was measured 1 mile south of Beard, while a home at Route 39 & CR 700 North lost its roof.
Large power outages have been noted in Clinton & White counties.
It appears to be a pretty consistent corridor of winds of 40-60 mph with likely a couple/three downbursts with winds of 70 mph or greater. Most likely areas for downbursts (per radar) were southeast of Brookston, near Rossville & where home was unroofed at 39 & 700 N.
Areas that saw the worst of the wind or the worst of the hail saw temperatures drop from near 88 to as low as 59 (due to chill from all of the hail & also the layer of dry air evaporatively cooling & producing the severe gusts as it grew heavier & kept falling out of the storm). This was all due to 30 knots of Effective Shear, up to 2500 ML CAPE with a steep lapse rate of up to 8C/km with subtle shortwave riding outer edge of intense heat wave developing.
Other storms produced 0.5" hail 3 miles northeast of Attica, while a few trees & limbs were downed in the city of Lafayette, mainly around 9th & Morton (over a 1-mile area) & one large tree was uprooted near New Market (Montgomery County). A wind gust of 45 mph was measured at the Flora Municipal Airport & 44 mph gust measured at Mulberry.
So our little 3-6 pm severe storm stretch is over, now we are tracking the bowing complex of storms in Illinois.
There are numerous Severe T'Storm Warnings in Illinois with Severe T'Storm Watch until 12 a.m. Central there.
Some severe gusts are possible as this line of storms moves through the area, given some amount of re-charge from earlier storms. However bow will being to turn more to the southeast & south with time, riding instability gradient. Severe gusts would tend to be confined to the west & southwest half of the viewing area.
Once this passes, we are pretty dry until we see scattered showers & storms increase tomorrow with about 40-50% coverage & highs in the humid 80s.
Severe weather risk for Sunday should stay south & southeast of our viewing area.
Wednesday is dry with sunshine & highs in the 80s to 90 (& still a bit humid, but tolerable).
2-3 MCSs (complexes of storms) & potentially a serial derecho will occur on the periphery of this extreme heat wave with 116 in Texas & up to 105 in the South U.S......all actual air temperatures.
We are looking at wind threat with these Tuesday night-Wednesday AM in the north.......Wednesday evening area-wide.....Thursday morning in the north.......Thursday night-Friday morning in the north & central areas [of the viewing area].
Highs will run near 90 to the upper 90s.
Worst of the heat is shaping up for next weekend to early the week following with 90s to 100 & heat indices 105-116.