An isolated thunderstorm developed over Ashtabula County and caused some minor damage.
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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.
An isolated thunderstorm developed over Ashtabula County and caused some minor damage.
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 Sep 3, 11:33 AM EST, 2 hours 47 minutes earlier.
Area Forecast Discussion National Weather Service Cleveland OH 1233 PM EDT Mon Sep 3 2018 .SYNOPSIS... A large area of high pressure will continue to build across the eastern United States through mid week. A cold front will slowly move southeast into the region Thursday, becoming stationary between the southern Great Lakes and Ohio valley through the end of the week. && .NEAR TERM /THROUGH TUESDAY/... Bumped up temps into the lower 90s most places for this afternoon as temps running 2-4 degrees warmer than ydy. Removed mention of convection everywhere except the east. Capes are over 2,000 j/kg but ridge and cap squashing most convection. Area of surface convergence in the east will be enough lift to kick off a few thunderstorms this afternoon. Original discussion... Another hot and humid day is expected across the region on Monday, with thunderstorm chances in the forecast, albeit low chances. Confidence is on the lower side for thunderstorm coverage during the afternoon/evening hours, as models continue to waver on focus for thunderstorm development today. The main synoptic forcing will be a weak trough/front that will sink to southeast lower Michigan/Lake Erie by midday. A remnant outflow boundary south of this feature may also be a focus for convection across northwest Ohio as the atmosphere destabilizes during the day. Convection may fire off a lake breeze across northeast Ohio and northwest PA as well. SBCAPE values will rise above 2000 j/kg across the region by mid day, however deep layer shear is weak and mid level lapse rates are marginal. Have opted for isolated/scattered coverage wording in the forecast today, and have kept pops in the 20-34% range given the uncertainty of the forcing and the extent of the coverage. This activity will peak between 18-21Z, then diminish rapidly after 00Z. For temperatures today, went fairly similar to previous forecast, close to the warmer MOS guidance. Dry conditions will prevail overnight, with warm low temperatures in the upper 60s/low 70s. Temps Tuesday are very close to previous forecast, with upper 80s/low 90s. Another unstable day may promote isolated thunderstorm development, so will roll with 20% pops, although forcing may be even more of a question on Tuesday. && .SHORT TERM /TUESDAY NIGHT THROUGH THURSDAY NIGHT/... The first portion of the short term will be warm and muggy. Have used persistence for temps. Cannot rule out a few stray thunderstorms Tuesday night and Wednesday in the north but coverage shouldn't be great enough to justify a mention this far out. Things will begin to change Wednesday night as the front that has been stalled to the north of us the past several days finally starts to move south. The models are now a little quicker with this feature and have it south of Lake Erie by daybreak Thursday. The front will pass over the local area on Thursday and then stall to the south. Will need increasing precip chances from north to south beginning Wednesday night. Coverage will likely be no more than scattered so will keep precip chances at 50 percent or less. Lingering precip is expected Thursday night as the airmass will be slow to dry out. Given the clouds and precip expected Thursday will cool temps off by about 5 degrees from Wednesday. && .LONG TERM /FRIDAY THROUGH SUNDAY/... Not many changes made today as the models continue to show differences for the weekend. The main concern is the stalled frontal boundary that will be off to the south at the start of the period. The latest ECMWF keeps the front off to the south on Friday as strong high pressure builds in from the north. Similar to last night the GFS brings this front back north on Saturday and spreads precip back across the area. By late Saturday it has a low developing along the front. It then takes this low north of the lake late Saturday night into Sunday. Meanwhile the ECMWF is slower to break down the high and only shows a weak wave on Sunday and keeps Saturday dry. Already have precip in for Saturday and will not remove at this point. Temps will get back closer to normal during the period but if the GFS is right it could get muggy again by the weekend. Overall confidence is low today hence few changes have been made. && .AVIATION /12Z Monday THROUGH Friday/... Hot and humid conditions will continue. Scattered convection this afternoon, mainly SE of CLE. Capes are over 2,000 j/kg but ridge and cap squashing most convection. Area of surface convergence in the east will be enough lift to kick off a few thunderstorms this afternoon. OUTLOOK...Non-VFR in patchy morning fog Tuesday through Thursday. Isolated thunderstorms in the afternoon Tuesday and Wednesday then scattered showers and thunderstorms Thursday. && .MARINE... Quiet weather will continue the first half of the week. Light southerly flow under 10 knots is expected through Wednesday evening. Waves should be under 2 feet during the same time period. A weak cold front is expected to sag south across the lake early Thursday. This may be a tad faster than previously thought. Winds will be light from the north right behind the front but some increase in speeds is expected late Thursday. Winds will become northeast on Friday as high pressure tries to build in from the north. Speeds will increase during the day and we could get close to small craft conditions. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && SYNOPSIS...Greenawalt NEAR TERM...DJB/Greenawalt SHORT TERM...Kubina LONG TERM...Kubina AVIATION...Greenawalt MARINE...Kubina
Hazardous Weather Outlook National Weather Service Cleveland OH 353 AM EDT Mon Sep 3 2018 OHZ003-006>010-017>019-027-028-040800- Lucas-Wood-Ottawa-Sandusky-Erie-Lorain-Hancock-Seneca-Huron-Wyandot- Crawford- 353 AM EDT Mon Sep 3 2018 This Hazardous Weather Outlook is for north central Ohio and northwest Ohio. .DAY ONE...Today and Tonight. Heat index values in the upper 90s are expected today. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Heat index values in the upper 90s are possible Tuesday and Wednesday, mainly during the afternoon hours. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. OHZ011>014-020>023-029>033-036>038-047-089-PAZ001>003-040800- Cuyahoga-Lake-Geauga-Ashtabula Inland-Medina-Summit-Portage-Trumbull- Richland-Ashland-Wayne-Stark-Mahoning-Marion-Morrow-Holmes-Knox- Ashtabula Lakeshore-Northern Erie-Southern Erie-Crawford- 353 AM EDT Mon Sep 3 2018 This Hazardous Weather Outlook is for north central Ohio, northeast Ohio and northwest Pennsylvania. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Heat index values in the mid to upper 90s are possible Tuesday and Wednesday, mainly during the afternoon hours. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. LEZ061-142>149-162>169-040800- 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- 353 AM EDT Mon Sep 3 2018 This Hazardous Weather Outlook is for Lake Erie. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
The Cleveland radar (KCLE), 92 km away, was scanning. The volume nearest the first event began at 19:20 UTC.
2 thunderstorm wind. Local standard time, as filed.
Thunderstorm winds downed a tree on Lampson Road just west of State Route 45.
Thunderstorm winds downed a tree near the intersection of Tote Road and Asegra Drive.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2018Every state in 2018This day in weather historyWarnings in Ohio, September 2018
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: 778491, 778490.