A warm front moved over northern Ohio causing a line of showers and thunderstorms to develop. Portions of the line became severe and a downburst caused a lot of damage in Stark County.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CLE wrote it up.
A warm front moved over northern Ohio causing a line of showers and thunderstorms to develop. Portions of the line became severe and a downburst caused a lot of damage in Stark County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cleveland, OH wrote its last area forecast discussion before the first event at Jun 29, 5:12 PM EST, 1 hour 6 minutes earlier.
Area Forecast Discussion National Weather Service Cleveland OH 612 PM EDT Thu Jun 29 2017 .SYNOPSIS... Scattered showers and storms will be possible tonight through Saturday. A weak cold front over the upper midwest will move slowly east across the area Saturday and be followed by another weak cold front on Monday. && .NEAR TERM /THROUGH FRIDAY/... Main forecast changes with this update revolve around ongoing convection across the eastern half of the forecast area. Expecting this activity to generally weaken through the the next several hours. Lightning activity has been minimal, storms have done little to organize and strengthen, and instability is quickly diminishing across the area, so at the current time think that the severe threat is minimal, albeit non-zero, for the next couple of hours. Better precip chances should arrive later tonight, especially across northwest Ohio, as mid level disturbance and increasing southwest low level jet ramp northeast into the area. Models have been fairly consistent with this feature despite poor performance with the evolution of this afternoon's convection. Will keep likely pops in for this time across the western part of the area. Otherwise, minimal changes to forecast with this update. Previous discussion... Cumulus clouds are widespread across the region, but no sign yet of any towering CU. Some storms may develop or move into northwest Ohio late this evening. There is a chance of an isolated severe storm from near Toledo to the Finlay area as these storms develop. We may see a few other storms develop across the northern tier of the CWA near sunset. With steep lapse rates and 30+ knots of 0-6 km bulk shear, any storm that is able to form will have at least a chance of becoming strong or possible severe. A widespread severe threat is not expected through tonight. A nocturnal southwesterly low-level jet will encourage some isolated to scattered showers and storms through much of the overnight hours. As we head into Friday we will see storms develop across the area, initially near Lake Erie and then slowly progressing southward through the afternoon and evening hours. The entire forecast area is in a slight risk for severe storms Friday with damaging winds the primary threat. Some marginally severe hail will also be possible with the strongest storms. There is some risk for flooding as well if storms are able to train over the same area. The severe threat will diminish Friday night, though there will still be at least a chance of additional showers and storms through the overnight hours. && .SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY NIGHT/... Models are trying to come to a consensus in the short term period as a cold front is progged to move east across the area. The front is expected to slow and then stall during the day Saturday just south and east of the region and then begin to push east Saturday night. The differences in the models indicate a lot of moisture with the front to limited moisture. I think a blend of the models is in order with this package to account for the wide variations in the chance for showers and thunderstorms. High pressure is expected to build east out of the middle Mississippi Valley region Sunday into Monday. This will bring a period of dry weather for the most part Sunday. The exception is that some of the models are suggesting lingering moisture over the east and with upper level broad trough in place, can't rule out the possibility for some shower and thunderstorm activity Sunday afternoon. Then, as high pressure moves east, a cold front will approach from the northwest late Sunday night into Monday morning. The front is expected to become stationary across the Ohio Valley by Monday afternoon. More high pressure builds east across the Great Lakes Monday. No strong warm air advection will take place during this period as the quick shots of cool air advection take place through this period. Overnight lows will remain in the lower to middle 60s and highs upper 70s in the northeast to lower 80s elsewhere. && .LONG TERM /MONDAY THROUGH THURSDAY/... Upper level trough will move through the area by Monday night with a cold front sagging south of the region. Since the front will stall near or just south of the area and northwesterly flow at the middle levels of the atmosphere may still have ripples of low pressure moving through it we will keep some low chances for showers/thunderstorms. The region may be dry Wednesday night as we await the approach of the next area of low pressure that may impact the region on Thursday. Temperatures through the long term will be near to slightly above seasonal averages. && .AVIATION /18Z Thursday THROUGH Tuesday/... Southwest winds continue to gust to 25 to 30 knots. These winds will diminish after sunset, but still be sustained at 10 to 15 knots through the overnight hours. A lot of uncertainty still exists with regards to where and when storms will develop this evening into tonight. Have included PROB30s in most TAFs during the overnight hours. KTOL should have the best shot at seeing TSRA this evening. Expect VFR conditions outside of showers and storms for the most part, with MVFR conditions in any precipitation. We could see a little MVFR fog develop tonight as well. OUTLOOK...Non-VFR conditions possible in thunderstorms Friday afternoon/evening into Friday night, then again on Saturday before becoming more isolated for Sunday and Monday. && .MARINE... Southwest winds remain just below Small Craft Advisory Criteria and will diminish after sunset. Waves are around 4 feet off the Erie, PA coast, so a Small Craft Advisory remains in effect here until 8PM. Southwest winds will then continue around 10 to 15 knots through Friday night. A series of weak cold fronts will affect the lake from Saturday onward. High pressure will slide southeast toward the lake Monday. Lake is expected to be relatively quiet Saturday and Saturday night but winds will increase out of the west at 10 to 20 knots by Sunday morning and continue through the day. Winds will then diminish to light southwest at 10 knots by Sunday night and become light and variable Monday. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...Beach Hazards Statement until 8 PM EDT this evening for PAZ001. MARINE...Small Craft Advisory until 8 PM EDT this evening for LEZ149. && SYNOPSIS...Mottice NEAR TERM...Greenawalt/Mottice SHORT TERM...Lombardy LONG TERM...Mullen AVIATION...Mottice MARINE...Lombardy/Mottice
Hazardous Weather Outlook National Weather Service Cleveland OH 310 PM EDT Thu Jun 29 2017 LEZ061-142>149-162>169-OHZ003-006>014-017>023-027>033-036>038-047- 089-PAZ002-003-301915- Lake Erie open waters from Ripley to Buffalo NY- Lake Erie nearshore waters from Maumee Bay to Reno Beach OH- Lake Erie nearshore waters from Reno Beach to The Islands OH- Lake Erie nearshore waters from The Islands to Vermilion OH- Lake Erie nearshore waters from Vermilion to Avon Point OH- Lake Erie nearshore waters from Avon Point to Willowick OH- Lake Erie nearshore waters from Willowick to Geneva-on-the Lake OH- Lake Erie nearshore waters from Geneva-on-the-Lake to Conneaut OH- Lake Erie nearshore waters from Conneaut OH to Ripley NY- Lake Erie open waters from Maumee Bay to Reno Beach OH- Lake Erie open waters from Reno Beach to The Islands OH- Lake Erie open waters from The Islands to Vermilion OH- Lake Erie open waters from Vermilion to Avon Point OH- Lake Erie open waters from Avon Point to Willowick OH- Lake Erie open waters from Willowick to Geneva-on-the-Lake OH- Lake Erie open waters from Geneva-on-the-Lake to Conneaut OH- Lake Erie open waters from Conneaut OH to Ripley NY-Lucas-Wood- Ottawa-Sandusky-Erie-Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland- Hancock-Seneca-Huron-Medina-Summit-Portage-Trumbull-Wyandot-Crawford- Richland-Ashland-Wayne-Stark-Mahoning-Marion-Morrow-Holmes-Knox- Ashtabula Lakeshore-Southern Erie- 310 PM EDT Thu Jun 29 2017 This Hazardous Weather Outlook is for Lake Erie, north central Ohio, northeast Ohio, northwest Ohio and northwest Pennsylvania. .DAY ONE...This Evening and Tonight. There is a marginal risk for severe storms this evening and tonight. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. There is a slight risk for severe storms for area wide Friday and Friday night. There is a marginal risk for severe storms Saturday for all but Northwest Ohio. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed. PAZ001-301915- Northern Erie- 310 PM EDT Thu Jun 29 2017 ...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northwest Pennsylvania. .DAY ONE...This Evening and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Beach Hazards Statement. There is a marginal risk for severe storms this evening and tonight. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. There is a slight risk for severe storms Friday and Friday night. There is a marginal risk for severe storms Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed.
Special Weather Statement
National Weather Service Cleveland OH
704 PM EDT THU JUN 29 2017
OHZ017-292330-
Hancock-
704 PM EDT THU JUN 29 2017
...A STRONG THUNDERSTORM WILL AFFECT HANCOCK COUNTY...
At 703 PM EDT, a strong thunderstorm was located over Rawson, or 7
miles southwest of Findlay, moving east at 40 mph. Gusty winds to
45 mph and small hail will be possible.
Locations impacted include...
Findlay, Fostoria, Bluffton, McComb, Arlington, Arcadia, Rawson,
Vanlue, Van Buren, Bloomdale, Benton Ridge, Jenera and Mount Cory.
LAT...LON 4111 8388 4117 8355 4117 8342 4100 8342
4099 8346 4095 8346 4095 8348 4092 8348
4087 8388
TIME...MOT...LOC 2303Z 256DEG 33KT 4100 8378
MullenThe Cleveland radar (KCLE), 158 km away, was scanning. The volume nearest the first event began at 23:20 UTC.
6 thunderstorm wind. Local standard time, as filed.
A 60 mph thunderstorm wind gust was measured by an automated sensor at the Findlay Airport.
Thunderstorm winds downed a couple trees east of Newton Falls.
Thunderstorm winds downed a couple of trees in the Warren area.
Thunderstorm winds downed a couple of trees.
A thunderstorm downburst with wind gusts estimated to be as much as 70 mph caused damage in Plain and Lake Township in northern Stark County. The downburst began in a residential development south of Mount Pleasant Street in Plain Township. At least a dozen trees were uprooted or snapped between Fox Run Avenue NW and Peachmont Avenue NW. Additional tree and structural damage was noted between the intersection of Mount Pleasant Street NW and Peachmont Avenue NW to Stonebridge Avenue NW in Lake Township. This damage continued east to Rolling Hill Avenue NW where the damage ended. There were over a dozen homes damaged with most of the damage in the form of lost shingles or siding. Most of this damage occurred on the southern and western sides of the homes.
Thunderstorm winds downed a couple of trees in Liberty Township.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2017Every state in 2017This day in weather historyWarnings in Ohio, June 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 708599, 708603, 708602, 708601, 708596, 708600.