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.

 

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

 

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.

 

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.

Environment Environment Environment
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.

Environment Environment Environment
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.

Environment Environment Environment
June 15, 2023 7 PM LCL Height June 15, 2023 6 PM Supercell Composite June 15, 2023 7 PM Large Hail Parameter