Blog Article
August 19, 2026 Severe Weather Recap: Tornadoes & Floods
August 19, 2026 recap: two landspout tornadoes in Iowa and Kansas, Lake Erie waterspouts, 3-inch Colorado hail, and major Ohio and Illinois flash flooding.
August 19, 2026 Severe Weather Recap
Alright folks, yesterday was a busy one, and it never really slowed down. From sunrise waterspouts on Lake Erie to overnight flash flooding in Ohio and Illinois, the atmosphere kept forecasters and emergency managers on their toes for a full 24 hours. Here's the thing though, this wasn't a classic tornado outbreak day. It was more of a broad, multi-hazard severe weather day with two confirmed landspout tornadoes, big hail, a strong wind gust, and dangerous flash flooding layered on top of each other across several states.
How the Day Unfolded
The morning started over water. Between about 7:44 AM and 9:45 AM ET, spotters at Painesville Township Park along Lake Erie watched three separate waterspouts spin up offshore, with additional sightings near Grand River, Fairport Harbor, and Conneaut, Ohio. NWS Cleveland issued Special Marine Warnings from Vermilion, Ohio all the way to Ripley, New York to cover boaters in the path.
By midday, the action shifted inland. An organized mesoscale convective system pushed into the Kansas City metro, and Severe Thunderstorm Watches 598, 599, and 600 went up across the Plains and Midwest as the atmosphere primed for an active afternoon. A separate watch, number 601, covered southern Arizona.
The afternoon got loud in Nebraska. A mesonet station 6 miles north-northwest of Greeley measured an 82 mph convective wind gust, a serious number for straight-line thunderstorm winds. Around the same time, a trained spotter near Marsh, Iowa reported a landspout tornado reaching the ground and then dissipating, an observation later corrected and reconfirmed by additional spotters. Out in eastern Colorado, a trained spotter measured 3.00-inch hail 8 miles south-southwest of Thurman in Lincoln County, under a destructive-tagged Severe Thunderstorm Warning for neighboring Kit Carson County. That's tennis-ball sized hail, capable of denting vehicles and shredding roofing.
As evening came on, an emergency manager relayed a possible landspout tornado 4 miles south of Oakley, Kansas, the second tornado report of the day.
But the real story of the night was water, not wind. Training thunderstorms parked over Logan and Shelby counties in Ohio, dropping 3 to 5 inches of rain and triggering a Flash Flood Warning with a Considerable damage tag for Bellefontaine. Roads became impassable, water crept into garages, and vehicles got stranded. Central Illinois had it just as bad, with Tazewell County picking up 3.5 to 4.5 inches of rain. Bull Run Creek overflowed in Morton, vehicles stalled out, and crews carried out water rescues.
Late in the evening, a fire department in Shady Grove, Mississippi reported a downed tree from thunderstorm wind damage, a small but real reminder that severe weather doesn't stop at state lines just because the bigger headlines are elsewhere.
Confirmed Facts From August 19
- Two landspout tornado reports: near Marsh, Iowa (confirmed by multiple trained spotters) and near Oakley, Kansas (relayed by an emergency manager, described as a possible landspout)
- Four waterspout sightings over Lake Erie near Painesville Township Park, Grand River, Fairport Harbor, and Conneaut, Ohio
- 3.00-inch hail reported 8 miles south-southwest of Thurman in Lincoln County, Colorado
- An 82 mph mesonet-measured wind gust 6 miles north-northwest of Greeley, Nebraska
- 3 to 5 inches of rain in Logan and Shelby counties, Ohio, with a Considerable flash flood tag for Bellefontaine
- 3.5 to 4.5 inches of rain in Tazewell County, Illinois, with Bull Run Creek overflowing in Morton
- Severe Thunderstorm Watches 598, 599, 600 (Plains/Midwest) and 601 (southern Arizona)
- Hurricane Lala peaked as a Category 4 storm with 130 mph sustained winds in the Central Pacific near the Papahanaumokuakea Marine National Monument before weakening to a high-end Category 3 with 115 to 127 mph winds
Forecast Versus Reality
We didn't have a locked-in Day 1 outlook text for August 19 sitting in front of us to grade line by line, but the watches tell their own story. SPC had Severe Thunderstorm Watches 598 through 600 covering the Plains and Midwest, and that's exactly where the action concentrated, Nebraska's damaging wind gust, the Iowa landspout, and the Colorado hail all fell inside that broad watch corridor. Watch 601 over southern Arizona lined up with the active pattern reaching into the Desert Southwest that afternoon.
What's worth flagging honestly: neither landspout tornado was the kind of supercell-driven, rotating-mesocyclone tornado that shows up in a classic Enhanced or Moderate Risk outlook. Landspouts spin up along surface boundaries under towering cumulus, often with weaker parent storms, and they're notoriously hard to forecast with precision. Getting two of them confirmed by spotters and an emergency manager on the same day, without an obvious tornado-specific bust in either direction, is about as good as this kind of setup gets. The bigger forecast success story was probably the flash flood side. Training storms repeatedly parked over the same ground in Ohio and Illinois, and Considerable damage tags on those warnings matched what actually happened on the ground, impassable roads, stranded vehicles, and water rescues.
What's Next
Hurricane Lala has kept sliding downhill since its Category 4 peak. As of this morning it's down to a Category 2 with 98 mph winds, tracking north-northwest well out from the main Hawaiian Islands, and it should keep weakening. Meanwhile, the Central Pacific isn't done cooking: NHC has a new area of low pressure, Invest 90EP, that's expected to become a tropical depression later today or tonight, plus a couple of other disturbances in the eastern Pacific worth watching over the next week.
Back over the CONUS, the severe weather focus has swung east. SPC has a Slight Risk up today across the Mid-Atlantic, including Philadelphia, Washington D.C., Baltimore, and Virginia Beach, with damaging wind gusts the main concern and a 30 percent probability of numerous wind reports in the highest-risk zone. There's also a modest tornado chance layered in, mainly an isolated-tornado-if-storms-fire setup, not anything resembling an outbreak signal. WPC has a Slight Risk for excessive rainfall over that same Mid-Atlantic corridor today, sliding south into Virginia and the Carolinas tomorrow. Then by Friday, the severe threat shifts back west into Nebraska and northern Kansas, a reminder that this active pattern isn't going anywhere just yet.
Bottom Line
August 19 was a day where the atmosphere spread its punches across a lot of ground instead of concentrating them in one spot. Two landspout tornadoes touched down in Iowa and Kansas, a mesonet station clocked an 82 mph gust in Nebraska, Colorado saw baseball-to-tennis-ball sized hail, and Ohio and Illinois dealt with genuinely dangerous flash flooding that stranded vehicles and forced water rescues. None of it rose to outbreak level, but taken together it was a full-hazard day, wind, hail, flooding, and tornadoes all showing up somewhere on the map. The takeaway for folks watching this pattern continue into today and tomorrow: keep an eye on flash flood warnings just as closely as severe thunderstorm warnings. Yesterday, the water did more damage than the wind.