At the surface, a cold front drifted eastward from western OH to eastern OH, roughly along and north of I-70, during the late morning through early evening of the 5th. Farther south, the front remained nearly-stationary in vicinity of south-central and southwest OH.
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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.
At the surface, a cold front drifted eastward from western OH to eastern OH, roughly along and north of I-70, during the late morning through early evening of the 5th. Farther south, the front remained nearly-stationary in vicinity of south-central and southwest OH. Ahead of the front, a cluster of multicell thunderstorms persisted generally eastward across central Trumbull County during the early afternoon of the 5th. The strongest thunderstorm generated a peak convective wind gust of 74 mph at the Youngstown Airport ASOS. These storms occurred amidst moderate effective bulk shear and MUCAPE, respectively, modest low-level lapse rates near 6.5C/km to 7C/km, and modest DCAPE near 500 J/kg.
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 May 5, 8:17 AM EST, 5 hours 20 minutes earlier.
Area Forecast Discussion National Weather Service Cleveland OH 917 AM EDT Sun May 5 2024 .SYNOPSIS... A cold front brings showers and thunder storms today, exiting to the east tonight. High pressure builds in from the north for Monday. A warm front comes through Tuesday, followed by a cold front Tuesday night. && .NEAR TERM /THROUGH MONDAY/... 930 AM update... No changes were needed with this late morning update. 630 AM Update... Some POP timing changes for the afternoon into the evening, but the main components of the forecast are still mainly the same. Also adjusted the forecast high temperatures slightly as well. Previous Discussion... Cold front stretching from Michigan through Indiana and western Kentucky will track eastward into western Ohio over the next few hours, then into the CWA through the late morning and afternoon. Currently, ahead of the cold front, convection firing along PVA in the southwesterly flow aloft. The cold front coming through later today will provide forcing for convective initiation after 16Z. Modest SBCAPE becomes available with some heating, but with modest lapse rates and in the mid levels and low/mid level flows less than 25kts, only expecting some wind gusts and perhaps some hail. Still outlooked for a marginal risk from SPC generally east of I-71 but think any issues with convection today would be isolated, although non-zero. Cold front should be east of the CWA by 03Z Monday with low and mid level clearing. Surface high pressure over the Great Lakes will then build in from the north tonight taking POPs south of the CWA. Meanwhile, a trough axis again in the southwesterly flow will begin moving into the Ohio Valley, bringing POPs northward again, but coming up short of the southern zones by 00Z Tuesday. Behind the cold front, a bit cooler weather expected Monday with mid 60s north to lower 70s south. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY NIGHT/... High pressure over the eastern Great Lakes will shift to New England by Tuesday. At the same time, a 120 knot upper level jet rounds the base of the Plains trough with the trough becoming oriented from Minnesota to the Central Great Lakes. Low level moisture advection ramps up as a surface trough weakens while reaching the local area. Slowed down chances of rain although pops remain fairly high as the warm front lifts north Tuesday afternoon and evening. Instability may reach 1500-2000 J/kg of ml CAPE. 0-6km shear values vary based on different model solutions but could be in the 30-50 knot range. The Storm Prediction Center has included most of the western half of the area in a Slight Risk for severe weather with a marginal risk extending a little farther east to nearly the Ohio/Pennsylvania state line. High temperatures are forecast to reach the mid 70s to near 80 degrees with dewpoints climbing into the low 60s along the front. Organized convection appears possible both along the northward moving warm front and ahead of the cold front that will settle back south Tuesday evening. Most lingering activity should exit the area to the east Wednesday morning. Cooling behind the front on Tuesday looks negligible with highs on Wednesday back into the upper 70s. Can not rule out a low chance of showers and thunderstorms during the afternoon on Wednesday depending on the where the frontal boundary stalled. && .LONG TERM /THURSDAY THROUGH SATURDAY/... Another area of low pressure is forecast to track northeast from the southern Plains to the Central Great Lakes on Thursday bringing more showers and possibly thunderstorms. A stronger cold front will push south across the area Thursday night into Friday morning as the upper level trough deepens overhead. High temperatures will be below normal Friday and Saturday and followed guidance trends in lowering temperatures a few degrees for both days. Temperatures will generally be in the low 60s but may not get out of the 50s in NW Pennsylvania where 850mb temperatures may be as low as 3-4C. Models are struggling with how to handle the interaction between this trough and another piece of energy diving south out of Canada. In general expecting the weekend to be on the cool side of normal with scattered showers and a broad cyclonic flow. && .AVIATION /12Z Sunday THROUGH Thursday/... More shower/isolated storm development this morning largely east of CLE/CAK. Cold front will be moving in from the west, and with some additional heating/mixing that will lift some of the lower ceilings out ahead of it, more thunderstorms are expected later this afternoon through the evening. However, timing of this has it most likely to occur after 16Z which puts it east of the I-71 corridor, mainly from CLE/MFD and east. Some gusty winds can be expected in the scattered thunderstorms, and only use TEMPO for CAK and YNG. Other terminals carrying VCTS/CB for a couple hours in the afternoon. Behind the cold front, it will take a few hours for the ceilings to clear out into the overnight portion of the forecast, and winds can be expected to become northerly late in the forecast period. Outlook...Non-VFR likely with periodic showers and thunderstorms on Tuesday into early Wednesday with another frontal system. && .MARINE... A trough will cross Lake Erie today, pulling a cold front southeast across the lake. Winds veer to the north behind the front and increase to 10 to 20 knots with waves building to 1 to 3 feet. Winds veer to northeasterly on Monday as high pressure builds from the central to eastern Great Lakes. An active pattern will follow for the remainder of the week. A warm front will lift north across the lake on Wednesday with southwesterly winds of 10-15 knots. A second area of low pressure is expected to track near Lake Erie on Thursday, pulling a stronger cold front south behind it on Friday. The track of this low may change and have an effect on wind direction, speeds, and wave heights. Tentatively conditions look to approach Small Craft Advisory criteria by Friday. && .CLE WATCHES/WARNINGS/ADVISORIES... OH...None. PA...None. NY...None. MARINE...None. && SYNOPSIS...26 NEAR TERM...Griffin/26 SHORT TERM...KEC LONG TERM...KEC AVIATION...26 MARINE...KEC
Hazardous Weather Outlook National Weather Service Cleveland OH 525 AM EDT Sun May 5 2024 LEZ061-145>149-165>169-OHZ010>014-020>023-032-033-089-PAZ001>003- 060930- Ripley to Buffalo NY extending from 5NM off shoreline to US- Canadian border-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- 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-Lorain-Cuyahoga-Lake-Geauga-Ashtabula Inland-Medina- Summit-Portage-Trumbull-Stark-Mahoning-Ashtabula Lakeshore- Northern Erie-Southern Erie-Crawford- 525 AM EDT Sun May 5 2024 This Hazardous Weather Outlook is for Lake Erie, north central Ohio, northeast Ohio and northwest Pennsylvania. .DAY ONE...Today and tonight. There is a Marginal Risk of severe thunderstorms today. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. OHZ003-006-008-017-018-027-060930- Lucas-Wood-Sandusky-Hancock-Seneca-Wyandot- 525 AM EDT Sun May 5 2024 This Hazardous Weather Outlook is for northwest Ohio. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a Slight Risk of severe thunderstorms Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. OHZ019-028>031-036>038-047-060930- Huron-Crawford-Richland-Ashland-Wayne-Marion-Morrow-Holmes-Knox- 525 AM EDT Sun May 5 2024 This Hazardous Weather Outlook is for north central Ohio and northeast Ohio. .DAY ONE...Today and tonight. There is a Marginal Risk of severe thunderstorms today. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a Slight Risk of severe thunderstorms Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. LEZ142>144-162>164-OHZ007-009-060930- Maumee Bay to Reno Beach OH-Reno Beach to The Islands OH- The Islands to Vermilion OH- 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-Ottawa-Erie- 525 AM EDT Sun May 5 2024 This Hazardous Weather Outlook is for Lake Erie, north central Ohio and northwest Ohio. .DAY ONE...Today and tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Cleveland OH
1150 AM EDT Sun May 5 2024
OHZ011>013-051630-
Geauga OH-Lake OH-Cuyahoga OH-
1150 AM EDT Sun May 5 2024
...GUSTY SHOWERS WILL IMPACT SOUTHWESTERN GEAUGA...NORTHEASTERN
CUYAHOGA AND SOUTHWESTERN LAKE COUNTIES THROUGH 1230 PM EDT...
At 1149 AM EDT, Doppler radar was tracking gusty showers near
Highland Hills, or 10 miles south of Willowick, moving east at 10
mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Chardon, Euclid, Solon, Warrensville Heights, South Russell, Highland
Hills, Chesterland, Shaker Heights, Maple Heights, South Euclid,
Mayfield Heights, Aurora, Lyndhurst, University Heights, Bedford,
Beachwood, Bedford Heights, Richmond Heights, Willoughby Hills, and
Highland Heights.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 4159 8116 4135 8121 4134 8131 4141 8156
4158 8152
TIME...MOT...LOC 1549Z 278DEG 8KT 4149 8145
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPHSpecial Weather Statement
National Weather Service Cleveland OH
158 PM EDT Sun May 5 2024
OHZ023-033-051845-
Mahoning OH-Trumbull OH-
158 PM EDT Sun May 5 2024
...A STRONG THUNDERSTORM WILL IMPACT SOUTHERN TRUMBULL AND
NORTHEASTERN MAHONING COUNTIES THROUGH 245 PM EDT...
At 158 PM EDT, Doppler radar was tracking a strong thunderstorm near
Leavittsburg, or near Warren, moving southeast at 20 mph.
HAZARD...Pea size hail.
SOURCE...Radar indicated.
IMPACT...Minor hail damage to vegetation is possible.
Locations impacted include...
Youngstown, Warren, Sharon, Niles, Campbell, Hubbard, Cortland,
Bristolville, Vienna Center, Hilltop, Maplewood Park, Leavittsburg,
Girard, Vienna, McDonald, Yankee Lake, Brookfield Center, Churchill,
Howland Center, and Bolindale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 4105 8053 4127 8096 4142 8087 4133 8051
4107 8052
TIME...MOT...LOC 1758Z 294DEG 18KT 4130 8084
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPHThe Pittsburgh radar (KPBZ), 91 km away, was scanning. The volume nearest the first event began at 18:36 UTC.
1 thunderstorm wind. Local standard time, as filed.
The Youngstown Airport ASOS recorded a peak convective wind gust of 74 mph from a thunderstorm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Ohio in 2024Every state in 2024This day in weather historyWarnings in Ohio, May 2024
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: 1167688.