Alert archive / Ohio / Tornado Watches in 2024

Tornado Watch 196

May 7, 20247 counties in Indiana; 12 counties in Michigan; 18 counties in Ohio

The Storm Prediction Center issued this tornado watch at May 7, 2024, 4:55 PM EDT for 7 counties in Indiana; 12 counties in Michigan; 18 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 7, 2024, 4:55 PM EDT (20:55 UTC)
Expired
May 7, 2024, 11:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 37 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Jay County, IN, Steuben County, IN, Wells County, IN, Barry County, MI, Branch County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Lenawee County, MI, Monroe County, MI, Washtenaw County, MI, Allen County, OH, Crawford County, OH, Defiance County, OH, Fulton County, OH, Hancock County, OH, Henry County, OH, Lucas County, OH, Marion County, OH, Morrow County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

The radar

The Detroit radar (KDTX), 84 km from the middle of the area, began a volume at 20:57 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
70%

Warnings issued inside it

22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 7, 5:47 PM EDTSevere Thunderstorm Warning Considerable damage threatIWXBranch, Saint Joseph43 min
May 7, 5:55 PM EDTSevere Thunderstorm Warning Considerable damage threatGRRCalhoun95 min
May 7, 5:57 PM EDTTornado Warning EmergencyTornado observedConsiderable damage threatIWXBranch, Saint Joseph33 min
May 7, 6:01 PM EDTTornado WarningIWXSteuben44 min
May 7, 6:13 PM EDTTornado Warning Tornado observedConsiderable damage threatGRRCalhoun62 min
May 7, 6:15 PM EDTTornado WarningIWXSteuben45 min
May 7, 6:33 PM EDTTornado WarningIWXBlackford, Grant27 min
May 7, 6:42 PM EDTSevere Thunderstorm WarningGRRJackson93 min
May 7, 6:48 PM EDTSevere Thunderstorm Warning Destructive damage threatIWXDeKalb, Noble27 min
May 7, 6:53 PM EDTSevere Thunderstorm WarningIWXAdams, Blackford, Jay, Wells37 min
May 7, 6:55 PM EDTTornado WarningIWXHillsdale17 min
May 7, 7:06 PM EDTSevere Thunderstorm Warning Destructive damage threatIWXDeKalb, LaGrange, Noble, Steuben24 min
May 7, 7:09 PM EDTTornado WarningIWXAllen37 min
May 7, 7:24 PM EDTSevere Thunderstorm Warning Destructive damage threatIWXSteuben51 min
May 7, 7:26 PM EDTSevere Thunderstorm WarningGRRCalhoun82 min
May 7, 7:35 PM EDTTornado Warning Tornado observedConsiderable damage threatGRRCalhoun25 min
May 7, 7:37 PM EDTTornado WarningIWXAllen24 min
May 7, 7:52 PM EDTSevere Thunderstorm WarningDTXLivingston, Washtenaw31 min
May 7, 7:55 PM EDTTornado WarningIWXPaulding35 min
May 7, 8:15 PM EDTTornado Warning Tornado observedIWXDefiance, Henry, Paulding, Putnam30 min
May 7, 8:33 PM EDTTornado WarningCLEHancock, Wood42 min
May 7, 8:45 PM EDTTornado Warning Tornado observedIWXHenry, Putnam30 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Detroit, MI (KDTX), launched 12:00Z, 8.9 hours before the alert went out and 88 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Detroit, MI at 12:00Z on 2024-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Detroit, MI at 12:00Z on 2024-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1533 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
79 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 7, 1:14 PM EDTMesoscale DiscussionSPCBenton, Boone, Carroll, Cass, Clinton, Elkhart and 24 more2 hr
May 7, 2:28 PM EDTTornado WatchSPCBartholomew, Benton, Boone, Brown, Carroll, Cass and 49 more12 hr
May 7, 3:53 PM EDTMesoscale DiscussionSPCBenton, Boone, Carroll, Cass, Clay, Clinton and 37 more67 min
May 7, 4:33 PM EDTMesoscale DiscussionSPCAdams, Allen, Blackford, Dearborn, Decatur, DeKalb and 17 more87 min
May 7, 6:00 PM EDTTornado WatchSPCDearborn, Decatur, Delaware, Fayette, Franklin, Henry and 8 more8 hr
May 7, 6:46 PM EDTMesoscale DiscussionSPCAdams, Allen, DeKalb, Steuben89 min
May 7, 7:36 PM EDTMesoscale DiscussionSPCClark, Crawford, Dubois, Floyd, Gibson, Harrison and 10 more54 min
May 7, 7:56 PM EDTMesoscale DiscussionSPCBartholomew, Brown, Dearborn, Decatur, Fayette, Franklin and 11 more94 min
May 7, 7:57 PM EDTTornado WatchSPCClark, Crawford, Dubois, Floyd, Gibson, Harrison and 10 more7 hr
May 7, 1:48 PM EDTMesoscale DiscussionSPCAdams, Athens, Brown, Clinton, Fayette, Gallia and 10 more87 min

Nearby

Tornado Watches in Ohio, 2024Tornado Watches in Michigan, 2024Tornado Watches in Indiana, 2024Every tornado watch in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.