Northern Ohio resided in the warm sector during the evening of the 14th as a low moved northeastward across central Ontario and central Quebec. |A squall line outpaced the cold front and moved generally eastward across northwest Ohio during the late evening of the 14th.
Every event with a place to put it. Tap one for its entry below.
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.
Northern Ohio resided in the warm sector during the evening of the 14th as a low moved northeastward across central Ontario and central Quebec. Simultaneously, the trailing cold front approached northwest Ohio from southeast Lower Michigan and northern Indiana.|A squall line outpaced the cold front and moved generally eastward across northwest Ohio during the late evening of the 14th. This line of showers and thunderstorms produced one measured severe wind gust and isolated straight-line wind damage. The showers and storms encountered moderate MUCAPE and DCAPE, and moderate to strong effective bulk shear.
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 14, 6:35 PM EST, 1 hour 31 minutes earlier.
Area Forecast Discussion National Weather Service Cleveland OH 735 PM EDT Tue Sep 14 2021 .SYNOPSIS... A cold front moves southeast across the area tonight through Wednesday morning. High pressure influences the area through Thursday. Another cold front approaches for the weekend, but will likely stall out north of the area. && .NEAR TERM /THROUGH WEDNESDAY NIGHT/... A line of showers and thunderstorms continues to become more defined over Indiana and will continue to move east. Storms will have to be monitored as they move into the local area. Timing would place the line near Toledo by 02z and then advance east with time this evening. Timing of current forecast looks reasonable so no adjustments at this time. Previous Discussion... Scattered showers and thunderstorms have developed across lower Michigan and northern Indiana, ahead of an advancing cold front. Hi-res model guidance has this filling in, becoming a somewhat broken line of thunderstorms. Eastward propagation is expected, with thunderstorms reaching the Toledo area around 00-02Z. Deep layer wind shear of around 30-40 knots will be present. These thunderstorms have the potential to become severe with damaging winds being the primary weather hazard. As thunderstorms progress ESE through the night, they should be in a weakening state due to unfavorable diurnal timing and weakening instability, though there is at least a low chance for near- severe level wind gusts late tonight for the rest of the forecast area. Redevelopment of showers and thunderstorms is possible late Wednesday morning and early afternoon across central and east-central Ohio, as well and northwest Pennsylvania. The entire area should be precipitation-free by Thursday 00Z. Temperatures behind the cold front should be slightly below normal. && .SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/... Showers should clear out of the forecast area by Thursday morning as a weak ridge builds over the region and dry weather is expected Thursday. Return flow may develop on Friday as a tropical system possibly takes shape off the East Coast, which could provide sufficient instability for scattered showers and thunderstorms during the afternoon and evening. Guidance isn't particularly aggressive on PoPs for our area and the best precip chances may lie to the south, so have slight chance PoPs at this time. Temps will gradually warm through the short term period. Highs will be in the upper 70s to lower 80s Thursday and should warm into the low to mid 80s on Friday. Overnight lows will be in the mid to upper 50s to lower 60s Thursday night and generally in the lower 60s Friday night. && .LONG TERM /SATURDAY THROUGH TUESDAY/... Expect relatively zonal flow with increasing heights through the long term period that will become more amplified by early next week as a trough deepens across the western half of the US. Scattered showers and thunderstorms may linger into Saturday afternoon/evening, but dry weather is anticipated for Sunday and most of Monday. The more amplified pattern will usher more moisture into the region, which will increase the risk for scattered diurnal showers and thunderstorms during peak heating hours Monday and Tuesday. Temps will increase above normal through early next week, with highs in the 80s expected through the entire period. A few spots in northwestern/north-central Ohio may approach 90 degrees by the end of the weekend. && .AVIATION /00Z Wednesday THROUGH Sunday/... A cold front will move southeast across the local area overnight with a line of showers and thunderstorms associated with it. The storms are expected to move through the area between 03Z and 06Z. However, there will be another potential for some showers and thunderstorms during the morning hours across the eastern third of the area as a wave of low pressure moves northeast along the front and slows the forward motion. Lower ceilings MVFR to possibly IFR expected along the front in the showers and storms. Winds will shift to a north-northwest direction behind the front and diminish. Outlook...Non-VFR possible Friday through Saturday with scattered showers. && .MARINE... Southwesterly winds will increase to 15 to 20 knots over the next several hours as a cold front approaches from the west. Winds may briefly approach Small Craft Advisory criteria for a very brief period this evening, but opted out of issuing a Small Craft Advisory since the highest winds will be in the open waters. Will continue to monitor the observations in case winds over-perform. Flow will shift to the northwest behind the front Wednesday morning and winds should quickly decrease below 10 knots behind the frontal passage. Northeasterly flow at 10 to 15 knots develops Thursday, but winds should become southerly and decrease below 10 knots by the start of the weekend. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. MARINE...None. && SYNOPSIS...Saunders NEAR TERM...Lombardy/Saunders SHORT TERM...Maines LONG TERM...Maines AVIATION...Lombardy MARINE...Maines
Hazardous Weather Outlook National Weather Service Cleveland OH 927 AM EDT Tue Sep 14 2021 LEZ061-142>149-162>169-OHZ003-006>009-017-018-151330- Ripley to Buffalo NY extending from 5NM off shoreline to US- Canadian border-Maumee Bay to Reno Beach OH- Reno Beach to The Islands OH-The Islands to Vermilion OH- Vermilion to Avon Point OH-Avon Point to Willowick OH- Willowick to Geneva-on-the Lake OH-Geneva-on-the-Lake to Conneaut OH- Conneaut OH to Ripley NY- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- Reno Beach to The Islands OH beyond 5NM off shoreline to US- Canadian border- The Islands to Vermilion OH beyond 5 nm off shoreline to US- Canadian border- Vermilion to Avon Point OH beyond 5 nm off shoreline to US- Canadian border- Avon Point to Willowick OH beyond 5 nm off shoreline to US- Canadian border-Willowick to Geneva-on-the- Lake OH beyond 5NM off shoreline to US-Canadian border-Geneva-on-the- Lake to Conneaut OH beyond 5 nm off shoreline to US-Canadian border- Conneaut OH to Ripley NY beyond 5 nm off shoreline to US- Canadian border-Lucas-Wood-Ottawa-Sandusky-Erie-Hancock-Seneca- 927 AM EDT Tue Sep 14 2021 This Hazardous Weather Outlook is for Lake Erie, north central Ohio and northwest Ohio. .DAY ONE...Today and tonight. There is a slight risk for severe thunderstorms tonight between 8 PM and 11 PM. Primary weather hazard will be with damaging winds but there is an isolated risk for hail and a tornado. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. OHZ010>014-019>023-027>033-036>038-047-089-PAZ001>003-151330- Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Huron-Medina-Summit- Portage-Trumbull-Wyandot-Crawford-Richland-Ashland-Wayne-Stark- Mahoning-Marion-Morrow-Holmes-Knox-Ashtabula Lakeshore-Northern Erie- Southern Erie- 927 AM EDT Tue Sep 14 2021 This Hazardous Weather Outlook is for north central Ohio, northeast Ohio, northwest Ohio and northwest Pennsylvania. .DAY ONE...Today and tonight. There is a marginal risk for severe thunderstorms tonight between 10 PM and 3 AM. Primary weather hazard will be isolated damaging winds. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Hazardous weather is not expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Cleveland OH
828 PM EDT Tue Sep 14 2021
OHZ003-006-007-150130-
Wood OH-Ottawa OH-Lucas OH-
828 PM EDT Tue Sep 14 2021
...A strong thunderstorm will impact portions of Ottawa, northeastern
Wood and Lucas Counties through 930 PM EDT...
At 828 PM EDT, Doppler radar was tracking a strong thunderstorm near
Wauseon, moving east at 35 mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Toledo, Swanton, Perrysburg, Oregon, Sylvania, Rossford, Waterville,
Northwood, Whitehouse, Genoa, Holland, Maumee, Ottawa Hills,
Walbridge, Millbury, Luckey, Clay Center, Berkey, Harbor View and
Reno Beach.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4172 8387 4173 8346 4173 8345 4172 8347
4169 8343 4169 8335 4171 8334 4163 8320
4174 8311 4162 8317 4162 8331 4146 8333
4150 8335 4150 8341 4146 8342 4148 8374
4142 8388
TIME...MOT...LOC 0028Z 256DEG 32KT 4162 8410
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
GriffinThe Detroit radar (KDTX), 108 km away, was scanning. The volume nearest the first event began at 01:07 UTC.
5 thunderstorm wind. Local standard time, as filed.
Numerous trees, power poles, and power lines downed in Washington Township (i.e. Shoreland).
The Toledo Executive Airport ASOS recorded a peak gust of 68 mph from thunderstorms.
Trees downed in Genoa.
Trees downed in Rocky Ridge.
Trees downed in Port Clinton.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2021Every state in 2021This day in weather historyWarnings in Ohio, September 2021
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: 984359, 984355, 984356, 984357, 984358.