Cleveland, OH

Weather Forecast Office

June 15, 2023 Severe Weather & Tornadoes

Overview

A cold front moved into northwest Ohio the evening of Thursday, June 15. A weak surface low pressure developed along this front over southern Michigan earlier in the day and moved southeast across the western tip of Lake Erie during the evening. A warm front extended southeast of this low pressure along the western Lake Erie shoreline and then down towards central Ohio. Thunderstorms erupted along the cold front near Toledo just before 6:00 PM and moved southeast towards east-central Ohio over the coming hours. Enhanced shear associated with the low pressure, warm front, and lake breeze boundary near the western lakeshore allowed storms to rotate. A particularly intense supercell (rotating thunderstorm) developed near the Ohio/Michigan border just north of Toledo and tracked across parts of Lucas, Ottawa, Sandusky, Erie, Huron, Seneca, Richland, Ashland, and Wayne Counties. This supercell was responsible for 12 tornadoes and numerous instances of large hail, with hail to at least the size of tennis balls reported near Toledo and multiple reports of hail to golf ball sized or larger as the storm continued southeast. Storms gradually congealed into a line that produced some hail and straight line wind damage into east central Ohio.

Radar loop and NWS warnings from the evening of June 15, 2023. Loop courtesy of Iowa State.

Tornado
Wind & Hail
Photos & Video
Radar
Storm Reports
Environment

Tornadoes:

Toledo Tornado
Lucas County

Date	June 15, 2023
Time (Local)	6:06-6:16 PM EDT
EF Rating	EF-2
Est. Peak Winds	130 mph
Path Length	5.95 miles
Max Width	300 yards
Injuries/Deaths	0
Summary: The tornado touched down east of Telegraph Road along East State Line Road in Toledo. Several tree limbs were down. The tornado continued to the southeast, snapping several power poles along North Detroit Avenue. The tornado tracked across I-75 before partially destroying the second flood of a medical lab building and blew out windows of surrounding businesses. It then moved across the Point Place area where it produced widespread tree damage, including uprooted trees on houses, power lines, and vehicles. The tornado continued to track southeast across Cullen Park and continued across the Maumee River. The tornado tracked southeast onto Harbor View where a large tree was blown down onto power lines.

Track Map

Downloadable KMZ File

Maumee Bay State Park Tornado
Lucas County

Date	June 15, 2023
Time (Local)	6:28 PM EDT
EF Rating	EF-0
Est. Peak Winds	80 mph
Path Length	0.24 miles
Max Width	50 yards
Injuries/Deaths	0
Summary: After the Toledo tornado dissipated near Harbor View, a waterspout developed 0.8 miles north of South Shore Park over Maumee Bay. The waterspout tracked southeast just north of Maumee Bay Lodge and Conference Center and moved onshore as a tornado on the eastern part of the park. Several trees, mostly dead, were blown over damaging the boardwalk.

Track Map

Downloadable KMZ File

Oak Harbor Tornado
Ottawa County

Date	June 15, 2023
Time (Local)	6:49-6:58 PM EDT
EF Rating	EF-2
Est. Peak Winds	130 mph
Path Length	3.45 miles
Max Width	200 yards
Injuries/Deaths	0
Summary: A tornado touched down about 3 miles south of Oak Harbor and tracked east-northeast, damaging five homes. A few of these residences lost roofs. The tornado also destroyed seven barns and up to ten cattle fatalities were reported.

Track Map

Downloadable KMZ File

Rice Township Tornado
Sandusky County

Date	June 15, 2023
Time (Local)	6:57-6:58 PM EDT
EF Rating	EF-1
Est. Peak Winds	95 mph
Path Length	0.16 miles
Max Width	100 yards
Injuries/Deaths	0
Summary: A tornado briefly touched down near the intersection of Township Road 153 and Township Road 146 in Rice Township. The tornado tracked southeast and blew down seven trees, two of which fell onto a house. The tornado lifted just southeast of the house.

Track Map

Downloadable KMZ File

Vickery Tornado
Sandusky County

Date	June 15, 2023
Time (Local)	7:20-7:21 PM EDT
EF Rating	EF-0
Est. Peak Winds	80 mph
Path Length	0.82 miles
Max Width	50 yards
Injuries/Deaths	0
Summary: A tornado briefly touched down along County Road 247 partially destroying a metal roof of a building. The tornado tracked east-southeast across Schertz Ditch and continued into a tree line. Metal roofing was thrown into a field and shingles from a home were thrown back toward the west.

Track Map

Downloadable KMZ File

Bellevue Tornado
Sandusky County

Date	June 15, 2023
Time (Local)	7:40-7:42 PM EDT
EF Rating	EF-0
Est. Peak Winds	80 mph
Path Length	0.93 miles
Max Width	500 yards
Injuries/Deaths	0
Summary: The tornado began on Parkview Place in northern Bellevue, knocking over several power poles. It tracked southeast into Robert Peters Park where several large branches were snapped off the tops of several trees. It continued to Kilbourne Street where it damaged more trees before dissipating.

Track Map

Downloadable KMZ File

Peru Township Tornado
Huron County

Date	June 15, 2023
Time (Local)	7:47-8:04 PM EDT
EF Rating	EF-2
Est. Peak Winds	115 mph
Path Length	8.89 miles
Max Width	1.25 miles
Injuries/Deaths	0
Summary: The tornado began a couple miles south of Monroeville in the vicinity of Townline Road 198 and Sand Hill Rd, where there was tree damage. The tornado continued southeast, where tree damage continued and a couple barns and outbuildings sustained EF-0 to EF-1 damage. The most significant damage from this tornado occurred in the vicinity of Snyder Road and Peru Center Road. Several residences were heavily damaged from higher end EF-1 to lower end EF-2 tornado wind speeds. A piece of slate roofing was lifted off a building north of Snyder Road and impaled a tree to the southeast. An outbuilding was completely destroyed and material from this structure was lofted a quarter of a mile southeast into a residence before eventually settling into a tree line. In this area, about 10 buildings total sustained damage. One residence was shifted off its foundation. The tornado continued south across Peru Center Road toward Townline Road 131 and State Route 61, where additional tree damage and minor outbuilding damage was noted. As the tornado reached Hanville Corners Road and Townline Road 113, several outbuildings and silos were heavily damaged with twisted debris lofted in various directions. A resident of this area noted that there was strong southerly inflow into the storm, causing some light damage before the main tornado hit from the north. The tornado continued southeast toward State Route 162 and Ridge Road, where this tornado heavily damaged a barn before cycling out, west of the village of North Fairfield. To the west of this tornado track, damage from strong straight-line winds was noted, consisting of estimated wind speeds of 80 mph for portions of western Peru Township and northern portions of Greenfield Township.

Track Map

Downloadable KMZ File

Northeast Peru Township Tornado
Huron County

Date	June 15, 2023
Time (Local)	7:50-7:53 PM EDT
EF Rating	EF-0
Est. Peak Winds	80 mph
Path Length	1.73 miles
Max Width	100 yards
Injuries/Deaths	0
Summary: An EF-0 tornado began at the intersection of Hettle Rd and Terry Rd where it uprooted a pine tree and snapped several large branches. This tornado dissipated after crossing Peru Center Rd.

Track Map

Downloadable KMZ File

East Greenfield Township Tornado
Huron County

Date	June 15, 2023
Time (Local)	8:03-8:04 PM EDT
EF Rating	EF-0
Est. Peak Winds	85 mph
Path Length	0.66 miles
Max Width	100 yards
Injuries/Deaths	0
Summary: A brief EF0 tornado began on State Route 61 snapping a pine tree and causing additional tree damage as it tracked southeast.

Track Map

Downloadable KMZ File

North Fairfield Tornado
Huron County

Date	June 15, 2023
Time (Local)	7:59-8:17 PM EDT
EF Rating	EF-1
Est. Peak Winds	110 mph
Path Length	9.92 miles
Max Width	0.65 miles
Injuries/Deaths	0
Summary: The tornado began in the vicinity of New State Road and Townline Road 131, downing a deteriorating barn. As the tornado continued south, it lifted a large portion of a roof of an outbuilding and downed several trees on Hanville Corners Road. The tornado entered North Fairfield causing widespread tree and power line damage. Some roofing material was lifted off residences. A large sign was ripped off the facade of a building and severe utility poles were leaning along Main Street. The tornado continued south across Penn Road, where a large area of snapped and shredded trees fell with additional damage occurring to several barns and outbuildings. As the storm continued southeast toward Boughtonville and Edwards Road, several silos were heavily damaged, several roofs were displaced off outbuildings, and a second floor of a residence was heavily damaged. The tornado began to cycle down west of the Village of Greenwich, where minor damage to trees and power poles was noted.

Track Map

Downloadable KMZ File

Greenwich Tornado
Huron County

Date	June 15, 2023
Time (Local)	8:18-8:24 PM EDT
EF Rating	EF-1
Est. Peak Winds	105 mph
Path Length	4.05 miles
Max Width	250 yards
Injuries/Deaths	0
Summary: The tornado started in the vicinity of Townline Road 12 and Edwards Road, where several softwood trees were snapped. The tornado hit a business causing damage to an office, several silos, an outbuilding, and some equipment. The tornado followed Townline Road 12 where additional damage to trees was noted, along with a clear path in a field. The tornado dissipated near State Route 13, northeast of Greenwich.

Track Map

Downloadable KMZ File

Nankin Tornado
Ashland County

Date	June 15, 2023
Time (Local)	8:47-8:49 PM EDT
EF Rating	EF-0
Est. Peak Winds	85 mph
Path Length	1.2 miles
Max Width	300 yards
Injuries/Deaths	0
Summary: A tornado touched down between County Road 801 and State Route 58, northeast of Nankin, OH where several trees were uprooted with branches snapped. The tornado tracked southeast towards Township Road 713 where one residence had damage to a roof, chicken coop, and a barn that lost a portion of the roof. There was also an outbuilding that suffered damage with both a garage door and walls pushed our with insulation lofted into a field.

Track Map

Downloadable KMZ File

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

Hail:

The long tracked supercell thunderstorm produced a swath of large hail from eastern Lucas County southeast across parts of Ottawa, Sandusky, Erie, Huron, northern Richland, Ashland and Wayne Counties with numerous reports of hail larger than golf ball sized. The largest hail occurred in eastern Lucas County, with reports of hail near baseball sized in locations such as the Point Place neighborhood in Toledo, Harbor View, and the Cedar Point Wildlife Refuge. Hail larger than 2" in diameter was also reported in northern Ashland County. Another thunderstorm produced quarter to golf ball sized hail in Seneca County.


Hail exceeding 2" fell in Bailey Lakes. (MWC Weather)	Hail exceeding 2" fell in Bailey Lakes. (MWC Weather)	Hail larger than 2" in diameter fell in the Toledo area. (Gregg Hart)	Golf ball size or larger hail fell in Toledo. (Steve Pietras)


Quarter size hail fell in Bellevue. (Steven Shuttlesworth)	Hail damaged a vehicle in Harbor View. (@Doggo/Twitter)	Hail near tennis ball sized in Harbor View. (@Doggo/Twitter)	Hail near baseball sized in the Point Place neighborhood of Toledo. (@aaronjmarcum/Twitter)


Golf ball sized hail in Bellevue. (Justin Walters)	Copious amounts of hail covered the ground and damaged vegetation in Walnut Creek, OH. (Mark Hochstetler)	Numerous hail stones at least the size of golf balls near Lake Erie in Toledo. (@FGrimvault/Twitter)	A hail-damaged windshield in the Point Place neighborhood of Toledo. (Timothy Albertson)

Photos & Video

Toledo Tornado


Damage to automotive shop, including damage to roof and exterior walls. (NWS Storm Survey)	Mangled trees and snapped power poles in northern Toledo. (NWS Storm Survey)	Damage to a medical building in Point Place, including complete removal of the roof and exterior walls on the second floor. (NWS Storm Survey)	Extensive tree and powerline damage in northern Toledo. (NWS Storm Survey)


Closer view of the medical building that was heavily damaged in the Point Place neighborhood. (NWS Storm Survey)	Extensive tree damage in northern Toledo. (NWS Storm Survey)	Tree damage and debris strewn across a field near Maumee Bay. (NWS Storm Survey)	Heavily damaged barn in northern Toledo. (NWS Storm Survey)

Maumee Bay State Park Tornado


Damage to a tree in Maumee Bay State Park. (NWS Survey)	Damage to a tree in Maumee Bay State Park. (NWS Survey)

Oak Harbor Tornado


Farm building completely collapsed. (NWS Survey)	Complete destruction of an outbuilding that housed farm equipment. (NWS Survey)	Damage to a house, including portions of the siding, windows, and roof. (NWS Survey)	Back of an outbuilding completely blown out by tornado. (NWS Survey)


Significant damage to a vehicle from flying debris. (NWS Survey)	Debris litters a field under where tree tops were snapped off. (NWS Survey)	Extensive damage a house, with the second story completely exposed. (NWS Survey)	Significant damage to the roof of a house, along with siding damage. (NWS Survey)


Outbuilding completely destroyed. (NWS Survey)	Damage to the roof and siding of a house. Debris from the storm also lays in the front yard. (NWS Survey)	Siding ripped from a house. (NWS Survey)	Trees snapped and twisted. (NWS Survey)

Rice Township Tornado


Damage to a home in Rice Township. (NWS Survey)	Large uprooted tree that fell on part of a home. (NWS Survey)	Damage to a roof where flying debris created a gap. (NWS Survey)	Multiple trees uprooted on a property in Rice Township. (NWS Survey)

Vickery Tornado


Starting location of the Vickery tornado where there was damage to an outbuilding. (Owen Fritz)	Damage to an outbuilding. (NWS Survey)	Power poles snapped along Whitmore Road. (NWS Survey)	Shingles and other debris was scattered across the area. (NWS Survey)

Bellevue Tornado


Tops of trees snapped off. (NWS Survey)	Uprooted tree fell on part of a house. (NWS Survey)	Numerous large, snapped tree branches littered a playground. (NWS Survey)	Large limb of tree snapped off. (NWS Survey)

Peru Township Tornado


Tornado over a farm in Peru. (Justin & Brandon Perry)	Barn partially collapsed (NWS Survey)	Outbuilding destroyed (NWS Survey)	Bent flag pole (NWS Survey)


Most larger limbs shredded (NWS Survey)	Roof of barn blown off (NWS Survey)	Damaged silo (NWS Survey)	Roof missing and downed tree (NWS Survey)

North Fairfield Tornado


Roof damage to outbuilding (NWS Survey)	Numerous tree limbs down (NWS Survey)	Large tree on home (NWS Survey)	Roof of home damaged (NWS Survey)

Greenwich Tornado


Swirl in field (NWS Survey)	Silos blown over (NWS Survey)	Damaged Pine trees (NWS Survey	Damaged Silos (NWS Survey)

Nankin Tornado


Trees snapped and roof damage to a house. (NWS Survey)	Tree snapped and twisted. (NWS Survey)	Roof damage to an outbuilding. Debris from the roof was found in a nearby field. (NWS Survey)	Damage to an outbuilding and chicken coop. (NWS Survey)

Radar


MRMS max estimated hail size (in inches) through 11 PM June 15, 2023. Locations in green reported hail between quarter and golf ball-sized, locally larger. Locations in yellow reported hail larger than golf ball and up to at least tennis ball sized.	MRMS mid-level rotation swaths through 11 PM June 15, 2023. Note the long swath of moderate to strong rotation, associated with the dominant supercells. At times, you can see tracks of smaller cells getting ingested by the larger supercell. The supercell produced the bulk of the large hail and tornadoes, though some of the smaller cells that developed and moved into it also produced tornadoes.	Loop of the reflectivity (left) and velocity (right) from the TDTW radar valid 6:01 to 6:14 PM as a tornado developed and moved across northern Toledo and Point Place. The tornado developed just south of the stateline near US 24 at 6:06 PM before moving into the Maumee off of Point Place at 6:10 PM. The tornado clipped the shoreline near Harbor View around the end of this loop.	Loop of the reflectivity (left) and velocity (right) from the TDTW radar valid 6:19 to 6:31 PM. After grazing the shoreline near Harbor View at around 6:15 PM, the rotation stayed over Maumee Bay for a few more minutes (where videos of a waterspout were recorded) before coming back ashore near the Maumee Bay State Park as an EF-0 tornado.


Cross section of the supercell thunderstorm near the Lucas County shoreline at 6:16 PM June 15, 2023. Note the very large area of high returns extending from the ground to over 35,000 feet aloft, with purples in the 10,000-20,000 foot layer indicating very large hail. Hail to near baseball size was reported around this time in eastern Lucas County.	Loop from the KCLE radar valid 6:46 PM through 6:59 PM of the rotation that produced an EF-2 tornado near Oak Harbor in Ottawa County. The tornado touched down at 6:49 PM just north of the Ottawa/Sandusky County line and lifted around 6:58 PM east-southeast of Oak Harbor. The storm that produced this tornado was a smaller storm getting ingested into the larger supercell approaching from the northwest.	Reflectivity (upper left), velocity (upper right), correlation coefficient (bottom left), and normalized rotation (bottom right) from the KCLE radar valid 6:55 PM June 15, 2023. Note the area just south of Oak Harbor where lower correlation coefficient is co-located with a tight velocity couplet within an area of high reflectivity. This is a Tornado Debris signature, which was present for 2-3 radar scans with this tornado.	Reflectivity (left) and velocity (right) valid at 7:01 PM June 15, 2023 from the KCLE radar. The radar is detecting a small area of rotation between Lindsey and Oak Harbor, which is likely responsible for the brief tornado that occurred in Rice Township. This was a brief EF-0 tornado with rotation that was tricky to spot on radar.


Reflectivity (left) and velocity (right) valid at 7:19 PM from the KCLE radar as an EF-0 tornado is produced in Vickery, OH.	Reflectivity (left) and storm-relative velocity (right) valid at 7:49 PM from the TLVE radar as an EF-0 is produced in Bellevue, OH. This is one of the tornadoes with a more subtle radar feature associated with it.	Reflectivity (top left), velocity (top right), storm-relative velocity (bottom left), and normalized rotation (NROT; bottom right) displayed from KCLE radar for 7:31 PM to 8:24 PM. In this radar loop you can see a supercell track southeast across Huron County as it produces several tornadoes, the strongest of which produced EF-2 damage in Peru, OH. Many classic supercell features are observed here including the hook echo, inflow region, and a very strong mesocyclone. Rain showers near the mesocyclone were also ingested into the supercell as it intensifies.	Reflectivity (left) and velocity (right) valid at 8:46 PM from the KCLE radar as an EF-0 tornado is produced in Nankin, OH.

Storm Reports

Click here for the Summary of Tornadoes on June 15, 2023.

Storm Reports

Map of all convective warnings issued by NWS Cleveland overlaid with local storm reports. Polygons outlined in yellow represent severe thunderstorm warnings. Polygons outlined in red represent tornado warnings. Polygons outlined in purple represent special marine warnings.

Preliminary Local Storm Report...Summary
National Weather Service Cleveland OH
156 PM EDT Sun Jun 18 2023

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0606 PM     Tornado          5 NNE Toledo            41.73N 83.54W
06/15/2023                   Lucas              OH   NWS Storm Survey 

            Preliminary NWS storm survey determined an 
            EF-2 tornado with estimated peak winds of 
            130 mph and path width of 300 yards occurred 
            in Lucas County, OH. The tornado touched 
            down 5 miles north of downtown Toledo and 
            tracked 2 miles east into Point Place. More 
            details on damage to follow. 

0607 PM     Tstm Wnd Dmg     4 WNW Harbor View       41.72N 83.52W
06/15/2023                   Lucas              OH   911 Call Center  

            Multiple utility poles down and report of a 
            roof blown off of a house in Washington 
            Township. Time estimated via radar. 

0609 PM     Tstm Wnd Dmg     3 WNW Harbor View       41.71N 83.50W
06/15/2023                   Lucas              OH   Broadcast Media  

            Numerous reports of trees snapped and 
            structural damage, including roofs ripped 
            off buildings, in Point Place. Possible 
            tornado. 

0610 PM     Tstm Wnd Dmg     2 NW Harbor View        41.71N 83.48W
06/15/2023                   Lucas              OH   Public           

            Numerous trees snapped. Minor damage to a 
            vehicle reported as well as minor damage to 
            a roof. Time estimated via radar. 

0610 PM     Hail             2 ENE Oregon            41.68N 83.38W
06/15/2023  E1.75 inch       Lucas              OH   Public           

            Large hail reported in Maumee Bay State 
            Park. Time estimated via radar. 

0615 PM     Hail             3 NW Harbor View        41.72N 83.48W
06/15/2023  M2.00 inch       Lucas              OH   Trained Spotter  

             

0615 PM     Hail             2 NW Harbor View        41.71N 83.48W
06/15/2023  E2.50 inch       Lucas              OH   Public           

            Report from mPING: Tennis Ball (2.50 in.). 


0616 PM     Hail             2 NNW Harbor View       41.72N 83.47W
06/15/2023  M2.00 inch       Lucas              OH   Trained Spotter  

            Time estimated via radar. 

0618 PM     Tstm Wnd Gst     1 W Harbor View         41.69N 83.47W
06/15/2023  M66 MPH          Lucas              OH   Buoy             

            Buoy station THRO1 Toledo, OH. 

0642 PM     Hail             6 NNE Rocky Ridge       41.61N 83.17W
06/15/2023  M1.25 inch       Ottawa             OH   Trained Spotter  
             

0648 PM     Hail             Oak Harbor              41.51N 83.15W
06/15/2023  E1.00 inch       Ottawa             OH   Public           

            Time estimated via radar. 

0649 PM     Tornado          3 S Oak Harbor          41.47N 83.15W
06/15/2023                   Ottawa             OH   NWS Storm Survey 

            Preliminary NWS storm survey determined an 
            EF-2 tornado with estimated peak winds of 
            130 mph and a path width of 200 yards 
            occurred south of Oak Harbor in Ottawa 
            County, OH. The tornado was on the ground 
            for approximately 9 minutes and tracked 3.45 
            miles to the east-northeast, damaging 
            multiple homes and destroying several barns. 

0650 PM     Tstm Wnd Dmg     3 SSE Oak Harbor        41.47N 83.13W
06/15/2023                   Ottawa             OH   Emergency Mngr   

            Damage to multiple houses near Hetrick and 
            Bloom Roads. Possible tornado damage. 

0650 PM     Tstm Wnd Dmg     3 SSE Oak Harbor        41.47N 83.13W
06/15/2023                   Ottawa             OH   Public           

            Damage to vehicles and farm buildings. 
            Pictures via social media. Possible tornado 
            damage. 

0652 PM     Tstm Wnd Dmg     6 SE Oak Harbor         41.44N 83.08W
06/15/2023                   Sandusky           OH   Emergency Mngr   

            Emergency manager reported storm damage in 
            Rice Twp. Possible tornado. 

0657 PM     Tornado          4 ENE Lindsey           41.45N 83.15W
06/15/2023                   Sandusky           OH   NWS Storm Survey 

            An EF-1 tornado with estimated maximum winds 
            of 95 mph and a width of 100 yards briefly 
            touched down near the intersection of 
            Township Road 153 and Township Road 146 in 
            Rice Township, OH. The tornado blew down 
            multiple trees, two of which fell onto a 
            house. The tornado was on the ground for 
            0.15 miles. 

0657 PM     Tstm Wnd Dmg     2 S Oak Harbor          41.48N 83.15W
06/15/2023                   Ottawa             OH   Broadcast Media  

            Several reports of structural damage along 
            and around State Route 19 south of Oak 
            Harbor in Ottawa County. Damage includes 
            siding damage, outbuilding wall failure, and 
            a roof blown off of a barn. Reports of trees 
            down as well. Time estimated via radar. 

0718 PM     Tornado          6 W Castalia            41.39N 82.92W
06/15/2023                   Sandusky           OH   NWS Storm Survey 

            Delayed report. An NWS Cleveland storm 
            survey confirms an EF-0 tornado briefly 
            touched down in Sandusky County east of 
            Vickery on June 15, 2023. The tornado 
            touched down along CR 247 partially 
            destroying a metal roof of an outbuilding 
            and throwing roofing into a field. Tornado 
            tracked east southeast for a third of a mile 
            across Schertz Ditch and continued into a 
            tree line. Shingles from a home were thrown 
            back toward the west. The maximum width was 
            50 yards. 

0718 PM     Tstm Wnd Dmg     5 ENE Fremont           41.38N 83.04W
06/15/2023                   Sandusky           OH   Public           

            Multiple trees snapped and powerlines down 
            along the Turnpike/I-80. Time estimated via 
            radar. 

0720 PM     Tstm Wnd Dmg     4 W Castalia            41.40N 82.89W
06/15/2023                   Sandusky           OH   Public           

            Outbuilding destroyed with debris scattered 
            into field near US-6 and County Road 298. 
            Time estimated via radar. 

0722 PM     Tstm Wnd Dmg     2 WSW Sandusky          41.44N 82.75W
06/15/2023                   Erie               OH   Trained Spotter  

            Poles snapped along US-6. 

0727 PM     Tstm Wnd Dmg     4 N Green Springs       41.31N 83.05W
06/15/2023                   Sandusky           OH   Public           

            Barn collapse. Time estimated via radar. 

0727 PM     Tstm Wnd Dmg     Castalia                41.40N 82.81W
06/15/2023                   Erie               OH   Trained Spotter  

            Numerous trees and powerlines down. 

0729 PM     Hail             Bellevue                41.28N 82.84W
06/15/2023  M1.75 inch       Sandusky           OH   Trained Spotter  

             

0729 PM     Hail             1 W Bellevue            41.28N 82.86W
06/15/2023  M1.50 inch       Sandusky           OH   Emergency Mngr   

             

0729 PM     Hail             1 W Bellevue            41.28N 82.86W
06/15/2023  M1.50 inch       Sandusky           OH   Emergency Mngr   

             

0731 PM     Tstm Wnd Dmg     Bellevue                41.28N 82.84W
06/15/2023                   Huron              OH   Public           

            Trees snapped along Northwest Street. 

0731 PM     Tstm Wnd Dmg     Bellevue                41.28N 82.84W
06/15/2023                   Huron              OH   Public           

            Trees snapped along Northwest Street. 

0732 PM     Hail             Bellevue                41.28N 82.84W
06/15/2023  M1.75 inch       Huron              OH   Trained Spotter  

            A trained spotter reported golf ball sized 
            hail near SR 269 and Lincoln Street in 
            Bellevue. 

0735 PM     Tstm Wnd Gst     4 E Port Clinton        41.52N 82.87W
06/15/2023  M40 MPH          Ottawa             OH   AWOS             

            AWOS station KPCW Port Clinton reported a 35 
            kt wind gust. 

0740 PM     Tornado          1 NW Bellevue           41.28N 82.85W
06/15/2023                   Sandusky           OH   NWS Storm Survey 

            A preliminary NWS storm survey confirms an 
            EF-0 tornado with estimated maximum winds of 
            80 mph and a width of 500 yards began in 
            northern Bellevue. The tornado tracked 0.93 
            miles southeast and knocked over multiple 
            power poles and snapped large branches off 
            the tops of several trees before 
            dissipating. 

0740 PM     Tstm Wnd Dmg     1 N Bellevue            41.28N 82.83W
06/15/2023                   Huron              OH   Public           

            Large trees downed just north of Bellevue. 
            Time estimated via radar. 

0748 PM     Tornado          2 S Monroeville         41.22N 82.70W
06/15/2023                   Huron              OH   NWS Storm Survey 

            Updates previous tornado report from 2 S 
            Monroeville. An NWS Cleveland Storm Survey 
            confirms an EF-2 tornado with a maximum 
            estimated wind speed of 115 mph occurred in 
            Huron County on June 15 2023. This tornado 
            started 2 miles south of Monroeville and 
            extended 9.43 miles to 1 mile west-northwest 
            of North Fairfield. The tornado had a 
            maximum width of 1100 yards. 

0749 PM     Hail             Bascom                  41.13N 83.29W
06/15/2023  M1.00 inch       Seneca             OH   Trained Spotter  

            Trained spotter reported quarter sized hail 
            in Bascom. 

0751 PM     Tstm Wnd Dmg     1 N Bellevue            41.28N 82.84W
06/15/2023                   Sandusky           OH   Public           

            Multiple trees down north of Bellevue. 
            Report obtained on social media and time 
            estimated via radar. 

0751 PM     Tstm Wnd Dmg     5 NNW North Fairfield   41.17N 82.64W
06/15/2023                   Huron              OH   Public           

            Large tree uprooted. Time estimated via 
            radar. 

0752 PM     Hail             2 W Tiffin              41.12N 83.21W
06/15/2023  E1.75 inch       Seneca             OH   Emergency Mngr   

            Golf ball sized hail between Bascom and 
            Tiffin. 

0752 PM     Hail             5 W Tiffin              41.12N 83.28W
06/15/2023  E1.25 inch       Seneca             OH   Public           

            Report from mPING: Half Dollar (1.25 in.). 

0753 PM     Hail             Tiffin                  41.12N 83.18W
06/15/2023  M1.00 inch       Seneca             OH   Trained Spotter  

             

0753 PM     Tstm Wnd Dmg     5 S Monroeville         41.18N 82.68W
06/15/2023                   Huron              OH   Public           

            Damage to houses and outbuildings. Numerous 
            trees and powerlines down. Possible tornado 
            damage. Time estimated via radar. 

0755 PM     Tstm Wnd Dmg     2 S Norwalk             41.21N 82.61W
06/15/2023                   Huron              OH   Trained Spotter  

            Metal Barn partially destroyed on Ridge 
            Road. 

0759 PM     Tornado          2 NNE North Fairfield   41.14N 82.60W
06/15/2023                   Huron              OH   NWS Storm Survey 

            An NWS Cleveland Storm Survey confirms an 
            EF-1 tornado with a maximum wind speed of 
            110 mph occurred in Huron County on June 15 
            2023. This tornado started 2 miles north of 
            North Fairfield and extended 9.92 miles to 1 
            mile west-southwest of Greenwich. The 
            tornado had a maximum width of 1100 yards. 

0804 PM     Tstm Wnd Dmg     3 SE North Fairfield    41.07N 82.56W
06/15/2023                   Huron              OH   Trained Spotter  

            House damaged on Edward Road. 

0806 PM     Hail             Tiffin                  41.11N 83.18W
06/15/2023  E1.00 inch       Seneca             OH   Public           

            Report from mPING: Quarter (1.00 in.). 

0818 PM     Tornado          3 NW Greenwich          41.07N 82.56W
06/15/2023                   Huron              OH   NWS Storm Survey 

            An NWS Cleveland Storm Survey confirms an 
            EF-1 tornado with a maximum wind speed of 
            105 mph occurred in Huron County on June 15 
            2023. This tornado started 3 miles northwest 
            of Greenwich and extended 4.05 miles to 3 
            miles north-northeast of Greenwich. The 
            tornado had a maximum width of 250 yards. 

0832 PM     Hail             Savannah                40.97N 82.36W
06/15/2023  M1.75 inch       Ashland            OH   Fire Dept/Rescue 

             

0835 PM     Hail             2 E Bailey Lakes        40.96N 82.31W
06/15/2023  E1.25 inch       Ashland            OH   Public           

            Report from mPING: Half Dollar (1.25 in.). 

0837 PM     Hail             Bailey Lakes            40.95N 82.36W
06/15/2023  M2.25 inch       Ashland            OH   Public           

            Picture submitted via social media. 

0846 PM     Hail             3 NNE Polk              40.99N 82.18W
06/15/2023  E1.50 inch       Ashland            OH   Public           

            Time estimated via radar. 

0847 PM     Tornado          3 WSW Polk              40.94N 82.27W
06/15/2023                   Ashland            OH   NWS Storm Survey 

            Preliminary NWS storm survey determined an 
            EF-0 tornado with estimated winds of 85 mph 
            and an estimated width of 300 yards touched 
            down 1 mile north-northeast of Nankin, OH 
            and tracked southeast for 1.2 miles. The 
            tornado uprooted trees and damaged multiple 
            outbuildings and a residence. 

0849 PM     Hail             3 E Bailey Lakes        40.94N 82.29W
06/15/2023  E1.75 inch       Ashland            OH   Public           

            Report from mPING: Golf Ball (1.75 in.). 

0850 PM     Tstm Wnd Dmg     3 WSW Polk              40.93N 82.27W
06/15/2023                   Ashland            OH   Public           

            Numerous trees down along SR 58 between 
            County Rd 801 and 852. 

0850 PM     Hail             3 SW Polk               40.90N 82.23W
06/15/2023  E1.75 inch       Ashland            OH   Public           

             

0914 PM     Tstm Wnd Dmg     5 SSE Congress          40.86N 82.03W
06/15/2023                   Wayne              OH   Emergency Mngr   

            Tree downed across Smithville Western Road 
            in Chester Twp. Time estimated via radar. 

0916 PM     Tstm Wnd Dmg     7 E Jeromesville        40.80N 82.07W
06/15/2023                   Wayne              OH   911 Call Center  

            Tree down on South Firestone Road. 

0920 PM     Tstm Wnd Dmg     4 NW Wooster            40.86N 81.98W
06/15/2023                   Wayne              OH   911 Call Center  

            Tree down on Mechanicsburg Road. 

0925 PM     Hail             2 ENE Wooster           40.83N 81.90W
06/15/2023  E1.50 inch       Wayne              OH   Public           

            Reported via photo on social media. Time 
            estimated via radar. 

0930 PM     Tstm Wnd Dmg     2 ESE Crestline         40.78N 82.70W
06/15/2023                   Richland           OH   911 Call Center  

            Tree reported down on North Horning Road. 

0936 PM     Tstm Wnd Dmg     1 E Lucas               40.70N 82.41W
06/15/2023                   Richland           OH   911 Call Center  

            Large tree down on Route 39. 

1000 PM     Flood            3 SW New London         41.05N 82.44W
06/15/2023                   Huron              OH   Public           

            Social media report that US 250 was 
            impassable due to flooding near the Ashland 
            County line. Time estimated. 

1012 PM     Tstm Wnd Dmg     4 SW Bellville          40.58N 82.57W
06/15/2023                   Richland           OH   NWS Employee     

            Two trees downed on property southwest of 
            Bellville. Time estimated via radar. 

1025 PM     Tstm Wnd Dmg     Killbuck                40.50N 81.98W
06/15/2023                   Holmes             OH   911 Call Center  

            Tree down. 

&&

$$

Environment

Surface low pressure developed over Southeast Michigan on Thursday June 15, 2023 in advance of an upper level trough deepening across the Central Great Lakes. A jet streak at 500mb rounded the base of the trough during the evening, supporting severe thunderstorm development. Effective bulk shear increased to 40-50 knots during the evening across northwest and north central Ohio. Meanwhile a warm front extended southeast from near Toledo towards Ashland, with this warm front likely becoming enhanced by a lake breeze near the western shoreline of Lake Erie in parts of Lucas, Ottawa, and Sandusky Counties.


June 15,2023 8 PM 300mb obs, wind, divergence	June 15, 2023 WPC Surface Analysis/Fronts Loop	June 15, 2023 8 PM Effective Bulk Shear

At 6 PM surface low pressure was located near the west end of Lake Erie and the Toledo area. The temperature at Toledo peaked at 83 degrees at 7:01 PM EDT, right after the tornadic supercell had moved through Lucas County. The dewpoint reached 61 degrees ahead of the storms. The atmosphere became considerably more favorable for severe thunderstorms development between 4 and 7 PM as southwest winds ramped up, pushing mixed layer CAPE from around 500 J/kg to 1500 J/kg across Northwest Ohio. Storms moving southeast out of Michigan encountered very strong and rapidly increasing surface vorticity as they approached the Lake Erie shoreline due to the warm front and lake breeze. This resulted in the tornado developing just north of Toledo at 606 PM EDT and a tornado developing at 609 PM EDT a half mile north northwest of Detroit Beach in Monroe County, Michigan.


June 15, 2023 Temperature and Dewpoint	June 15, 2023 6 PM 0-3km MLCAPE and Surface Vorticity	June 15, 2023 8 PM 0-3 km SRH (m2/s2) and storm motion

One parameter that was not as favorable for tornado development was the Lifting Condensation Level or LCL. The LCL was estimated to be around 1250 m when the first tornado occurred. Values of 500-800 m are more conducive to tornado development. More investigation is needed to see if values may have actually been lower in the vicinity of Lake Erie. Two other parameters that were worth noting with relatively high values for Ohio include the Supercell Composite Parameter which peaked at 4 and the Large Hail Parameter which peaked at a value of 8.