Severe Thunderstorms producing damaging winds, flash flooding, funnel clouds and tornadoes moved through northeast Minnesota and northwest Wisconsin on Friday, August 14, 2020.
Tornado – Lawler, Minnesota (Aitkin County)
Date: August 14, 2020
Time: 6:57 PM – 7:02 PM CDT
EF Rating: EF-1
Estimated Peak Winds: 90 mph
Path Length: 1.5 miles
Max Width: 100 yards
Source: https://www.weather.gov/dlh/
Track Map
Radar grab of the Lawler Tornado
Note: Meteorologists at the National Weather Service in Duluth issued a total of 16 warnings (11 severe thunderstorm warnings and 5 tornado warnings) during the severe weather event in the Northland on Friday, August 14, 2020.
This map shows where severe thunderstorm warnings (colored polygons on map) were issued on Friday, August 14, 2020.
Source: https://mesonet.agron.iastate.edu/
This map shows where tornado warnings (colored polygons on map) were issued on Friday, August 14, 2020.
Here’s a look at all the warnings that were issued by the National Weather Service in Duluth, MN on Friday, August 14, 2020.
Storm Reports map from August 14, 2020.
Source: https://www.spc.noaa.gov/
Blue=Wind reports
Red=Tornado reports
Green=Hail reports
Radar from 9:15 PM shows a line of strong thunderstorms continuing to move ENE through far northeast Minnesota and northwest Wisconsin. Storms will exit these areas by Midnight, but until then expect lightning, torrential downpours, gusty winds and hail in some of the storms.
What. A. Storm. A broken squall line basically stretches from Ontario to western Oklahoma this evening all part of the same storm lifting into western Ontario this evening.
Source: Goes-16 imagery 8.14.2020; https://weather.cod.edu/
*Minnesota Power reporting 53 active outages affecting nearly 4700 customers as of 9 PM – Link to outage map https://mnpower.com/OutageCenter/OutageMap
*Reports of a large tree down in Lester Park on Tioga street at 8 PM.
*A large tree down in Superior, WI at 7:52 PM.
*Possible tornadoes reported near Tamarack and Cromwell around 7 this evening.
*Flood warnings remain in effect through early Saturday morning for portions of north-central and northeast Minnesota with flooding reported in the Grand Rapids and Hibbing areas this evening.
Storm Reports from Friday, August 14, 2020
Note: Additional storm reports from August 14th in this updated post.
Source: https://www.weather.gov/dlh/
9:30 PM: Marine Thunderstorm Wind 29 mph. 2 SE Silver Bay, MN.
8:22 PM: Thunderstorm Wind Damage. 1 N Palmers, MN (St. Louis County) A tree was downed onto a power line along Homestead Road in Clifton Township.
8:13 PM: Thunderstorm Wind Damage. 3 NW French River, MN (St. Louis County) A tree was leaning on a power line along Lismore Road in Normanna Township.
8:04 PM: Thunderstorm Wind Damage. Solon Springs, WI (Douglas County) A tree was down over a roadway in Solon Springs.
8:03 PM: Flash Flood. Nashwauk, MN (Itasca County) Water to a depth of 4 feet was reported over Pearson Avenue in Nashwauk.
8:02 PM: Thunderstorm Wind Damage. 1 N Solon Springs, WI (Douglas County) Several trees down, some as large as 10 inches in diameter.
8:02 PM: Thunderstorm Wind Damage. 3 NNE Duluth, MN (St. Louis County) Report of metal sheeting dangling from a building that could pose a threat to power lines.
8:01 PM: Marine Thunderstorm Wind 49 mph. 5 SE Duluth, MN (St. Louis County) Reported at Duluth Sky Harbor Airport.
8:00 PM: Thunderstorm Wind Damage. 3 NE Duluth, MN (St. Louis County) A tree was down on a power line on East 1st Street and the tree was on fire.
8:00 PM: Thunderstorm Wind Damage. Lester Park, MN (St. Louis County) A large tree was down on a power line on Tioga Street and was on fire.
8:00 PM: Flash Flood. Keewatin, MN (Itasca County) Reports of a minimum of 9 inches of standing water on roadways in parts of Keewatin. Around 12 inches of water in some spots. Reports of flooding in several locations in town. Spotter reported 3.96 inches of rain.
8:00 PM: Flash Flood. 4 SSE Taconite, MN (Itasca County) A culvert was washed out on County Road 69 near Birch Drive south of Marble and CR 69 is closed.
7:58 PM: Thunderstorm Wind Damage. 1 NNW Superior, WI (Douglas County) The roof of an large industrial building was severely damaged and partially blown off.
7:57 PM: Thunderstorm Wind Damage. 2 SSE Duluth, MN (St. Louis County) A string of loaded double stack container railroad cars were blown over on the south side of Duluth Port Terminal.
Note: Photo credit David Schauer.
7:52 PM: Thunderstorm Wind Damage. Superior, WI (Douglas County) Large tree down in Superior.
7:51 PM: Flood. 5 S La Prairie, MN (Itasca County) Flooding over roadway with water undermining the blacktop.
7:50 PM: Flash Flood. Hibbing, MN (St. Louis County) Numerous reports of flooded roadways along US 169 and many city streets in Hibbing were received.
7:45 PM: Thunderstorm Wind Damage. 5 E Mahtowa, MN (Carlton County) Report of a tree down across the road.
7:45 PM: Thunderstorm Wind Damage. 2 NNW Scotts Corner, MN (Carlton County) Power line down.
7:45 PM: Thunderstorm Wind Damage. 1 W Thomson, MN (Carlton County) Pine tree down across Highway 210.
7:42 PM: Heavy Rain 5.06″. 3 S Cohasset, MN (Itasca County) Storm total since Midnight.
7:42 PM: Thunderstorm Wind Damage. 2 WSW Scotts Corner, MN (Carlton County) Power line down and going across the Highway.
7:41 PM: Thunderstorm Wind Damage. 3 WSW Fond du Lac, MN (Carlton County) A tree was down over the roadway in Jay Cooke State Park.
7:35 PM: Thunderstorm Wind Damage. 2 W Scotts Corner, MN (Carlton County) Over 100 trees down at the location with the trees stacked up on each other. Damage may be from a tornado.
7:25 PM: Thunderstorm Wind Damage. 2 ESE Moose Lake, MN (Carlton County) Power line down in ditch.
7:20 PM: Hail 0.25 inch. Keewatin, MN (Itasca County) 2.99″ of rain.
7:20 PM: Thunderstorm Wind Damage. 3 NNW Duquette, MN (Pine County) Tree down on power line.
7:18 PM: Thunderstorm Wind Damage. 3 NW Moose Lake, MN (Carlton County) Barns down between Moose Lake and Kettle River.
7:17 PM: Thunderstorm Wind Damage. 4 W Moose Lake, MN (Carlton County) Reports of structures damaged between Highway 27 and E County Road 134, east-southeast of Moose Lake, including a pole shed and homestead.
7:16 PM: Thunderstorm Wind Damage. Chisholm, MN (St. Louis County) Power lines were in the trees with smoldering limbs.
7:14 PM: Thunderstorm Wind Damage. 2 WNW Kerrick, MN (Pine County) A tree fell onto a cabin with lots of additional tree damage around the property as well.
7:10 PM: Thunderstorm Wind Damage. 1 E Sturgeon Lake, MN (Pine County) Multiple trees down within the city of Sturgeon Lake.
7:06 PM: Flood. Lawler, MN (Aitkin County) A few culverts washed out due to flooding from heavy rain.
7:05 PM: Thunderstorm Wind Damage. 2 SSE Hibbing, MN (St. Louis County) A power line was down and laying across part of Townline Road.
7:04 PM: Thunderstorm Wind Damage. 2 SSW Willow River, MN (Pine County) Trees were falling along MN-61 between Willow River and Rutledge.
7:04 PM: Thunderstorm Wind Damage. 2 ENE Sandstone, MN (Pine County) Ten inch diameter tree broken.
7:04 PM: Thunderstorm Wind Damage. Hibbing, MN (St. Louis County) A few trees were down in Hibbing with at least one partially blocking a street.
7:02 PM: Thunderstorm Wind Damage. Sandstone, MN (Pine County) Several 3-5 inch diameter trees reported broken.
7:00 PM: Thunderstorm Wind Damage. 3 NNW Sandstone, MN (Pine County) Tree blown down over driveway.
7:00 PM: Thunderstorm Wind Damage. 1 ESE Finlayson, MN (Pine County) Trees were down in Finalyson. Mostly dead birch and dead tamarack but a few live popple trees were uprooted as well.
7:00 PM: Thunderstorm Wind Damage. Lawler, MN (Aitkin County) Multiple trees and power lines down.
6:58 PM: Thunderstorm Wind Damage. 5 SW Finlayson, MN (Pine County) Part of a metal roof was peeled off of a house with additional damage to a barn near the intersection of Groningen Road and Fox Road due to strong winds.
6:58 PM: Thunderstorm Wind Damage. 1 W Lawler, MN (Aitkin County) Multiple trees and power lines down.
6:57 PM: Flash Flood. 1 NE Grand Rapids, MN (Itasca County) Localized flooding in the city of Grand Rapids. Notable locations include Ace Hardware on 5th street and other downtown business locations.
6:51 PM: Heavy Rain 1.23″. 3 SSE Brevik, MN (Cass County)
6:48 PM: Thunderstorm Wind Damage. 8 ESE McGrath, MN (Aitkin County) Docks flipped over near Giese due to strong winds.
6:42 PM: Thunderstorm Wind Damage. Hill City, MN (Aitkin County) Some minor tree damage in the Hill City area.
6:39 PM: Flood. 1 N La Prairie, MN (Itasca County) State Patrol reports that 2 feet of water was covering the road on 169 near Glenwood Drive. Road will be shut down.
6:34 PM: Thunderstorm Wind Damage. 3 SSE Bovey, MN (Itasca County) Several trees reported down at the Trout Lake Campground near Grand Rapids.
6:32 PM: Heavy Rain 3.45″. 2 WSW Jenkins, MN (Cass County)
6:32 PM: Funnel Cloud. 1 WNW Calumet, MN (Itasca County) Possible funnel cloud with a rotating shelf cloud. Spotter reported seeing this funnel near Marble on US-169.
6:25 PM: Hail 0.25 inch. 1 SW Grand Rapids, MN (Itasca County)
6:24 PM: Hail 0.25 inch. 1 NW Grand Rapids, MN (Itasca County)
6:23 PM: Heavy Rain 2.25″. 1 SSW Grand Rapids, MN (Itasca County)
6:23 PM: Hail 0.88 inch. 1 SSW Grand Rapids, MN (Itasca County)
6:22 PM: Thunderstorm Wind Damage. 4 SSE Libby, MN (Aitkin County) Many trees down, and powerlines down due to wind in the Big Sandy Lake area.
6:20 PM: Flood. 7 S Days High Landing (Cass County) Cass County Sheriffs office reports flooding across the road on State Rd 6 near Willow Lake.
6:17 PM: Heavy Rain 3.18″. 10 NNW Hill City, MN (Itasca County) 24-Hour Rainfall Total.
6:13 PM: Funnel Cloud. Crosby, MN (Crow Wing County)
5:46 PM: Thunderstorm Wind Damage. 1 S Fifty Lakes, MN (Crow Wing County) About 15 acres worth of trees were downed of heavily damaged on the south side of Fifty Lakes.
5:33 PM: Thunderstorm Wind Damage. 2 NNW Cross Lake, MN (Crow Wing County) Several downed trees.
Thanks for reading!
Tim
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