Overview
A surface low pressure system from the Midwest moved east across the area on Tuesday, August 6, along a stationary boundary that was draped across the region for the majority of the day. Surface features were supported by an upper level shortwave trough moving southeast across the region in addition to the CWA being underneath the right entrance region of the upper level jet and vorticity maximum. MUCAPE values across the area approached 3000 J/kg with shear values of 30-40 knots as the LLJ pushed north across the area. Strong updrafts were evident with ample moisture of dewpoints in the 70s and 0-1km helicity values exceeding 100 m2/s2 to go along with steep low- level lapse rates. Hodographs supported supercell and tornadic potential near the boundary owing to the multiple tornadoes, marcobursts, and strong bowing segments observed during the event. Several tornadoes occurred throughout the CWA to include two high-end EF-1s, two additional EF-1s and a macroburst in Cuyahoga, Lake, and Geauga Counties. |
![]() Mid-level water vapor loop from 8 AM to 8 PM on August 6, 2024. Note the strong shortwave across the Lower Great Lakes region in addition to Tropical Storm Debby spinning off the Southeast Coast. |
Tornadoes:
Tornado - Bay Village, OH
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Tornado - Brook Park-Bedford, OH
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Tornado - Kirtland-Chesterland, OH
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Tornado - Richfield-Boston, OH
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Macroburst
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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Photos & Video
Radar
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Radar loop showing base reflectivity (upper left), base velocity (upper right), correlation coefficient (bottom left) and storm relative velocity (bottom right) associated with the Avon Lake to Rocky River. Note the appearance of a rotational velocity couplet from Bay Village to near the Rocky River/Lakewood border, and an occasional tornadic debris signature (lower correlation coefficient values along with high reflectivity and a rotational couplet). | Radar loop showing base reflectivity (upper left), base velocity (upper right), correlation coefficient (bottom left) and storm relative velocity (bottom right) for the Brook Park to Bedford tornado. Note the appearance of a rotational velocity couplet from Brook Park to Bedford and an tornado debris signature (lower correlation coefficient values along with high reflectivity and a rotational couplet). After the tornado dissipated in Bedford, strong straight line winds accelerated across southern Solon doing tree damage. | Radar loop showing base reflectivity (upper left), base velocity (upper right), correlation coefficient (bottom left) and storm relative velocity (bottom right) for the Richfield tornado. Note how a small rotational couplet develops while crossing out of Cuyahoga County into Richfield, with a tornado debris signature (lower correlation coefficient values along with high reflectivity and a rotational couplet) briefly developing thereafter. The couplet and debris signature quick dissipate over Boston Township. | Radar loop showing base reflectivity (upper left), base velocity (upper right), correlation coefficient (bottom left) and storm relative velocity (bottom right) for the Chesterland tornado. Note how a small rotational couplet develops over extreme southern Lake County and persists into Chesterland, with a tornado debris signature (lower correlation coefficient values along with high reflectivity and a rotational couplet) briefly developing over Chesterland. |
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Radar loop showing base reflectivity (left) and storm relative velocity (right) as the larger squall line blasted into the Cleveland area and east side. Note the large area of greens and blues (strong "inbound" winds blowing towards the radar at Hopkins Airport) developing over Lake Erie as the squall line organized and pushed onshore. These were very strong winds that developed as a mesovortex developed near the northern edge of the thunderstorms and enhanced a rear inflow jet, which whipped into the backside of the squall line and led to 70-90 MPH (locally up to 100 MPH) winds across parts of Cuyahoga, Lake, and Geauga Counties. | Radar loop showing base reflectivity (left) and base velocity (right) as the larger squall line blasted across parts of Lake, Geauga, Ashtabula, Portage, Trumbull, Mahoning, and Crawford (PA) Counties. This is from the radar located just west of Pittsburgh, PA, as it has a better viewing angle on the strong northerly winds that did damage with this squall line. Note the pockets of enhanced wind that came across parts of Geauga County into western Trumbull County and from southern Ashtabula County into northern and eastern Trumbull County. These winds may have locally reached 70-80 MPH. |
Storm Reports
Map of wind damage reports (blue) and tornadoes (red). Click image to enlarge. Interactive map. Full list of reports in chronological order. |
Environment
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Near-storm environment summary.
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Additional environmental data.
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