Thunderstorm Wind, Dewey
- When
- June 7, 10:14 PM MST
- Where
- Dewey County, Timber Lake
- Measured
- 56 kt (64 mph) measured gust
- Reported by
- Mesonet
- Coordinates
- 45.430, -101.070
A line of storms moving across north central and northeast South Dakota generated high winds from the evening of June 7th into the early morning hours of June 8th. The South Dakota State University mesonet station 1 mile southwest of Timber Lake recorded a peak wind gust of 65 mph, while the South Dakota Department of Transportation mesonet stations 1 mile northeast of Timber Lake and 2 miles…
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ABR wrote it up.
A line of storms moving across north central and northeast South Dakota generated high winds from the evening of June 7th into the early morning hours of June 8th. The South Dakota State University mesonet station 1 mile southwest of Timber Lake recorded a peak wind gust of 65 mph, while the South Dakota Department of Transportation mesonet stations 1 mile northeast of Timber Lake and 2 miles north of Herreid peaked at 64 mph.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Aberdeen, SD wrote its last area forecast discussion before the first event at Jun 7, 6:03 PM MST, 4 hours 11 minutes earlier.
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</html>Hazardous Weather Outlook National Weather Service Aberdeen SD 320 AM CDT Sun Jun 7 2026 SDZ006>008-011-017>019-036-037-048-051-080830- Brown-Marshall-Roberts-Day-Faulk-Spink-Clark-Hyde-Hand-Lyman-Buffalo- 320 AM CDT Sun Jun 7 2026 This Hazardous Weather Outlook is for central South Dakota, north central South Dakota and northeast South Dakota. .DAY ONE...Today and tonight. There is a Marginal Risk, level 1/5, for severe storms tonight. Main threats are hail, inch in diameter, and 60 mph wind gusts. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is an Enhanced Risk, level 3/5, for severe weather over portions of north central SD and a Slight Risk, level 2/5, for severe storms over central and northeastern SD Tuesday. All modes of severe weather are possible. Severe storms are again possible Wednesday James Valley and eastward. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested. Weather spotters are encouraged to submit reports to the National Weather Service in Aberdeen. The public can submit reports on our web page, Facebook page, or our X feed. SDZ003-080830- Corson- 220 AM MDT Sun Jun 7 2026 This Hazardous Weather Outlook is for north central South Dakota. .DAY ONE...Today and tonight. There is an Enhanced Risk, level 3/5, for scattered to numerous severe storms over the western half of Corson County this evening into tonight. Main threats include large hail, 1 to 2+ inches in diameter, and wind gusts of 70+ mph. A tornado or two cannot be ruled out as well. Heavy rain that could lead to flooding is also be a concern. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is an Enhanced risk, level 3/5, for numerous severe storms Tuesday with all severe modes possible. .SPOTTER INFORMATION STATEMENT... Spotter activation will likely be needed. Weather spotters are encouraged to submit reports to the National Weather Service in Aberdeen. The public can submit reports on our web page, Facebook page, or our X feed. SDZ004-005-009-010-015-016-033>035-045-080830- Campbell-McPherson-Walworth-Edmunds-Dewey-Potter-Stanley-Sully- Hughes-Jones- 320 AM CDT Sun Jun 7 2026 /220 AM MDT Sun Jun 7 2026/ This Hazardous Weather Outlook is for central South Dakota and north central South Dakota. .DAY ONE...Today and tonight. There is a Slight Risk, level 2/5, for scattered severe storms along and west of the line from Eureka to Murdo this evening into tonight. Main threats include large hail, one to two inches in diameter, and wind gusts of 70+ mph. Heavy rain that could lead to flooding is also be a concern. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is an Enhanced Risk, level 3/5, for severe storms over portions of north central SD and a Slight Risk, level 2/5, for severe storms over central SD Tuesday. All modes of severe weather are possible. .SPOTTER INFORMATION STATEMENT... Spotter activation may be requested. Weather spotters are encouraged to submit reports to the National Weather Service in Aberdeen. The public can submit reports on our web page, Facebook page, or our X feed. MNZ039-046-SDZ020>023-080830- Traverse-Big Stone-Codington-Grant-Hamlin-Deuel- 320 AM CDT Sun Jun 7 2026 This Hazardous Weather Outlook is for west central Minnesota and northeast South Dakota. .DAY ONE...Today and tonight. Showers and thunderstorms are possible late tonight into Monday morning. While no severe weather is anticipated, pea size hail and wind gusts of 50 mph are possible with lightning being the main threat. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Marginal Risk, level 1/5, for severe storms Monday afternoon with the main threats being quarter size hail and 60 mph wind gusts. There is a Slight Risk, level 2/5, for severe storms Tuesday with all modes of severe weather possible. Wednesday will continue with a chance of severe weather James Valley and eastward through west central MN. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Aberdeen SD
937 PM MDT Sun Jun 7 2026
SDZ003-080400-
Corson SD-
937 PM MDT Sun Jun 7 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN CORSON COUNTY
THROUGH 1000 PM MDT...
At 937 PM MDT, Doppler radar was tracking a strong thunderstorm near
Thunder Hawk, or 10 miles southeast of Lemmon, moving northeast at 30
mph.
HAZARD...Wind gusts up to 50 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Morristown, Watauga, Keldron, and Thunder Hawk.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until midnight MDT for
north central South Dakota.
&&
LAT...LON 4594 10200 4594 10150 4567 10200
TIME...MOT...LOC 0337Z 225DEG 27KT 4584 10200
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
06Special Weather Statement
National Weather Service Aberdeen SD
1049 PM MDT Sun Jun 7 2026
SDZ003-015-080530-
Dewey SD-Corson SD-
1049 PM MDT Sun Jun 7 2026
...STRONG THUNDERSTORMS WILL IMPACT CORSON AND NORTHWESTERN DEWEY
COUNTIES THROUGH 1130 PM MDT...
At 1049 PM MDT, Doppler radar was tracking strong thunderstorms along
a line extending from Walker to 6 miles south of Klein Ranch to 7
miles west of Green Grass. Movement was east at 40 mph.
HAZARD...Wind gusts of 50 to 55 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Eagle Butte, Mclaughlin, Timber Lake, Little Eagle, Bullhead, Lantry,
Mcintosh, Isabel, White Horse, Morristown, Firesteel, Watauga, Green
Grass, Little Moreau Rec Area, Trail City, Mahto, Black Horse,
Parade, Bear Creek, and Walker.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Severe Thunderstorm Watch remains in effect until midnight MDT for
north central South Dakota.
&&
LAT...LON 4594 10200 4595 10055 4594 10050 4590 10044
4560 10068 4505 10083 4499 10139 4499 10150
4547 10147 4547 10200
TIME...MOT...LOC 0449Z 267DEG 36KT 4593 10106 4557 10132 4521 10139
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH
06The Bismarck radar (KBIS), 151 km away, was scanning. The volume nearest the first event began at 05:14 UTC.
9 thunderstorm wind. Local standard time, as filed.
The South Dakota State University mesonet station one mile southwest of Timber Lake recorded a peak wind gust of 65 mph.
A trained spotter estimated thunderstorm winds topped out around 60 mph with some smaller tree branches downed.
The South Dakota Department of Transportation mesonet station two miles north of Herreid recorded a peak gust of 64 mph.
A trained spotter estimated thunderstorm winds topped out close to 60 mph.
A trained spotter estimated thunderstorm winds topped out at about 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in South Dakota in 2026Every state in 2026This day in weather historyWarnings in South Dakota, June 2026
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1331102, 1331103, 1331104, 1332126, 1331105, 1331106, 1331107, 1332125, 1332127.