Alert archive / Ohio / Severe Thunderstorm Watches in 2015

Severe Thunderstorm Watch 228

May 27, 201513 counties in Indiana; 9 counties in Michigan; 31 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2015, 1:08 PM EDT for 13 counties in Indiana; 9 counties in Michigan; 31 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2015, 1:08 PM EDT (17:08 UTC)
Expired
May 27, 2015, 7:00 PM EDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1 in
Strongest gust expected
60 kt
All 53 counties

Adams County, IN, Allen County, IN, Blackford County, IN, DeKalb County, IN, Grant County, IN, Huntington County, IN, Jay County, IN, Miami County, IN, Noble County, IN, Steuben County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Hillsdale County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Clair County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Ashland County, OH, Auglaize County, OH, Crawford County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Fulton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Huron County, OH, Knox County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Marion County, OH, Mercer County, OH, Morrow County, OH, Ottawa County, OH, Paulding County, OH, Putnam County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

The radar

The Northern Indiana radar (KIWX), 127 km from the middle of the area, began a volume at 17:12 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
10%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
10%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 27, 1:15 PM EDTSevere Thunderstorm WarningIWXHenry30 min
May 27, 1:20 PM EDTSevere Thunderstorm WarningCLELucas55 min
May 27, 1:27 PM EDTSevere Thunderstorm WarningIWXAllen, DeKalb, Noble, Whitley33 min
May 27, 1:29 PM EDTSevere Thunderstorm WarningDTXWayne20 min
May 27, 1:59 PM EDTSevere Thunderstorm WarningIWXAllen, DeKalb46 min
May 27, 2:07 PM EDTSevere Thunderstorm WarningCLEWood38 min
May 27, 2:31 PM EDTSevere Thunderstorm WarningIWXAllen44 min
May 27, 2:34 PM EDTSevere Thunderstorm WarningDTXLivingston, Washtenaw56 min
May 27, 2:40 PM EDTSevere Thunderstorm WarningDTXOakland65 min
May 27, 2:42 PM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky33 min
May 27, 2:58 PM EDTSevere Thunderstorm WarningIWXDefiance, Henry, Paulding, Putnam62 min
May 27, 3:06 PM EDTSevere Thunderstorm WarningDTXMacomb54 min
May 27, 3:24 PM EDTSevere Thunderstorm WarningDTXSaint Clair44 min
May 27, 3:37 PM EDTSevere Thunderstorm WarningCLEWood53 min
May 27, 3:44 PM EDTSevere Thunderstorm WarningCLEOttawa, Sandusky31 min
May 27, 4:17 PM EDTSevere Thunderstorm WarningCLEErie, Ottawa, Sandusky43 min
May 27, 4:45 PM EDTSevere Thunderstorm WarningCLEErie45 min
May 27, 5:19 PM EDTSevere Thunderstorm WarningCLELorain26 min
May 27, 5:42 PM EDTSevere Thunderstorm WarningCLECuyahoga, Lorain33 min
May 27, 6:41 PM EDTSevere Thunderstorm WarningILNChampaign, Logan, Union30 min

Discussions around it

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

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 27, 8:57 AM EDTMesoscale DiscussionSPCBoone, Brown, Clay, Clinton, Crawford, Daviess and 28 more2 hr
May 27, 12:09 PM EDTMesoscale DiscussionSPCAdams, Allen, Benton, Blackford, Boone, Carroll and 38 more96 min
May 27, 1:22 PM EDTMesoscale DiscussionSPCBartholomew, Clark, Dearborn, Decatur, Fayette, Floyd and 16 more83 min
May 27, 3:26 PM EDTMesoscale DiscussionSPCAdams, Allen, Blackford, DeKalb, Grant, Huntington and 3 more2 hr

Nearby

Severe Thunderstorm Watches in Ohio, 2015Severe Thunderstorm Watches in Indiana, 2015Severe Thunderstorm Watches in Michigan, 2015Every severe thunderstorm watch in 2015

Sources

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