Alert archive / North Dakota / Severe Thunderstorm Watches in 2020

Severe Thunderstorm Watch 352

July 10, 20206 counties in Montana; 25 counties in North Dakota; 25 counties in South Dakota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 10, 2020, 1:08 PM MDT for 6 counties in Montana; 25 counties in North Dakota; 25 counties in South Dakota. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued
Jul 10, 2020, 1:08 PM MDT (19:08 UTC)
Expired
Jul 10, 2020, 9:00 PM MDT
In force
8 hr
Issued by
the Storm Prediction Center
Largest hail expected
2.5 in
Strongest gust expected
65 kt
All 56 counties

Daniels County, MT, Dawson County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Wibaux County, MT, Adams County, ND, Billings County, ND, Bowman County, ND, Burke County, ND, Burleigh County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, Logan County, ND, McIntosh County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Williams County, ND, Bennett County, SD, Butte County, SD, Campbell County, SD, Corson County, SD, Dewey County, SD, Haakon County, SD, Harding County, SD, Hughes County, SD, Jackson County, SD, Jones County, SD, Lawrence County, SD, Lyman County, SD, McPherson County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Walworth County, SD, Ziebach County, SD

The radar

The Bismarck radar (KBIS), 145 km from the middle of the area, began a volume at 19:11 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
20%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
70%
One or more gusts of 65 knots or more
60%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
60%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 10, 2:04 PM MDTSevere Thunderstorm WarningBISGolden Valley, Slope56 min
Jul 10, 2:22 PM MDTSevere Thunderstorm WarningUNRButte53 min
Jul 10, 2:45 PM MDTSevere Thunderstorm WarningGGWRichland, Roosevelt60 min
Jul 10, 2:48 PM MDTSevere Thunderstorm WarningBISBillings, Slope, Stark57 min
Jul 10, 2:50 PM MDTSevere Thunderstorm WarningUNRButte, Lawrence55 min
Jul 10, 3:21 PM MDTSevere Thunderstorm WarningUNRButte, Lawrence, Meade54 min
Jul 10, 3:48 PM MDTTornado WarningUNRLawrence, Meade27 min
Jul 10, 3:59 PM MDTSevere Thunderstorm WarningUNRLawrence, Meade, Pennington61 min
Jul 10, 4:26 PM MDTSevere Thunderstorm WarningUNRPennington34 min
Jul 10, 4:27 PM MDTSevere Thunderstorm WarningGGWWibaux27 min
Jul 10, 4:29 PM MDTSevere Thunderstorm WarningBISGrant, Hettinger48 min
Jul 10, 4:52 PM MDTSevere Thunderstorm WarningUNRMeade, Pennington40 min
Jul 10, 4:56 PM MDTSevere Thunderstorm WarningUNRCuster, Meade, Pennington64 min
Jul 10, 5:05 PM MDTSevere Thunderstorm WarningBISBillings, Golden Valley, McKenzie40 min
Jul 10, 5:11 PM MDTSevere Thunderstorm WarningBISGrant, Morton64 min
Jul 10, 5:25 PM MDTSevere Thunderstorm WarningUNRCuster, Pennington33 min
Jul 10, 5:31 PM MDTSevere Thunderstorm WarningUNRCuster, Jackson, Oglala Lakota, Pennington59 min
Jul 10, 5:43 PM MDTSevere Thunderstorm WarningBISBillings, Dunn, Stark26 min
Jul 10, 6:11 PM MDTSevere Thunderstorm WarningBISEmmons, Sioux49 min
Jul 10, 6:12 PM MDTSevere Thunderstorm WarningUNRBennett, Jackson, Oglala Lakota78 min
Jul 10, 6:25 PM MDTTornado WarningUNRBennett, Oglala Lakota50 min
Jul 10, 6:43 PM MDTSevere Thunderstorm WarningABRCampbell, Corson, Walworth47 min
Jul 10, 6:59 PM MDTSevere Thunderstorm WarningBISEmmons, Logan, McIntosh49 min
Jul 10, 7:08 PM MDTTornado WarningBISEmmons, McIntosh17 min
Jul 10, 7:13 PM MDTSevere Thunderstorm WarningBISBowman29 min
Jul 10, 7:19 PM MDTSevere Thunderstorm WarningUNRBennett, Jackson, Mellette, Todd56 min
Jul 10, 7:27 PM MDTSevere Thunderstorm WarningABRCampbell, Walworth48 min
Jul 10, 8:27 PM MDTSevere Thunderstorm WarningABREdmunds, Faulk, Potter, Walworth33 min
Jul 10, 8:40 PM MDTSevere Thunderstorm WarningABRFaulk, Potter22 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
Jul 10, 12:26 PM MDTMesoscale DiscussionSPCCarter, Fallon, Richland, Wibaux2 hr
Jul 10, 2:43 PM MDTMesoscale DiscussionSPCCarter, Daniels, Dawson, Fallon, Richland, Roosevelt and 2 more2 hr
Jul 10, 8:13 AM MDTMesoscale DiscussionSPCBennett, Dewey, Gregory, Haakon, Hughes, Jackson and 9 more62 min
Jul 10, 5:31 PM MDTMesoscale DiscussionSPCBennett, Jackson, Mellette, Oglala Lakota, Pennington, Todd119 min

Nearby

Severe Thunderstorm Watches in North Dakota, 2020Severe Thunderstorm Watches in South Dakota, 2020Severe Thunderstorm Watches in Montana, 2020Every severe thunderstorm watch in 2020

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.