Alert archive / Minnesota / Severe Thunderstorm Watches in 2018

Severe Thunderstorm Watch 266

July 8, 20185 counties in Minnesota

The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2018, 6:59 AM CDT for 5 counties in Minnesota. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jul 8, 2018, 6:59 AM CDT (11:59 UTC)
Expired
Jul 8, 2018, 11:04 AM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
65 kt

Counties Cook County, MN, Itasca County, MN, Koochiching County, MN, Lake County, MN, Saint Louis County, MN

The radar

The Duluth radar (KDLH), 139 km from the middle of the area, began a volume at 12:03 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
40%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
20%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jul 8, 7:35 AM CDTSevere Thunderstorm WarningDLHLake, Saint Louis40 min
Jul 8, 8:20 AM CDTSevere Thunderstorm WarningDLHItasca, Koochiching, Saint Louis40 min
Jul 8, 8:56 AM CDTSevere Thunderstorm WarningDLHItasca, Koochiching, Lake, Saint Louis49 min
Jul 8, 8:58 AM CDTSevere Thunderstorm WarningDLHCook, Lake47 min
Jul 8, 9:09 AM CDTSevere Thunderstorm WarningDLHCook36 min
Jul 8, 9:42 AM CDTSevere Thunderstorm WarningDLHCook, Lake, Saint Louis25 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 8, 2:35 AM CDTMesoscale DiscussionSPCBeltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Norman and 4 more85 min
Jul 8, 3:14 AM CDTSevere Thunderstorm WatchSPCBeltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Pennington and 3 more5 hr
Jul 8, 5:30 AM CDTMesoscale DiscussionSPCBeltrami, Clearwater, Itasca, Kittson, Koochiching, Lake of the Woods and 5 more90 min
Jul 8, 9:23 AM CDTMesoscale DiscussionSPCCook, Lake, Saint Louis97 min
Jul 8, 1:16 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Clay, Clearwater, Hubbard, Mahnomen and 4 more2 hr
Jul 8, 3:52 PM CDTSevere Thunderstorm WatchSPCAitkin, Becker, Big Stone, Carlton, Cass, Clay and 15 more7 hr
Jul 8, 5:46 PM CDTMesoscale DiscussionSPCAitkin, Becker, Benton, Big Stone, Carlton, Cass and 22 more119 min

Nearby

Severe Thunderstorm Watches in Minnesota, 2018Every severe thunderstorm watch in 2018

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.