South Dakota, 2018

Damaging Winds in South Dakota, July 7, 2018

July 7, 2018 · NWS UNR · 2 events in 1 county or zone

A thunderstorm became severe as it moved east into Perkins County. The storm produced wind gusts over 65 mph.

Where it happened

Every event with a place to put it. Tap one for its entry below.

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  • Heat and drought
  • Cold
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Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS UNR wrote it up.

A thunderstorm became severe as it moved east into Perkins County. The storm produced wind gusts over 65 mph.

What forecasters said that day

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 Rapid City, SD wrote its last area forecast discussion before the first event at Jul 7, 4:08 PM MST, 5 hours 27 minutes earlier.

Area forecast discussion, Jul 7, 4:08 PM MST, 5 hours 27 minutes before
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Hazardous weather outlook, Jul 7, 5:34 AM MST, 16 hours 1 minute before
Hazardous Weather Outlook
National Weather Service Rapid City SD
634 AM MDT Sat Jul 7 2018

SDZ001-024-025-028-029-072-WYZ054>058-071-081300-
Harding-Northern Black Hills-Northern Foot Hills-
Central Black Hills-Southern Black Hills-
Sturgis/Piedmont Foot Hills-Northern Campbell-Southern Campbell-
Western Crook-Wyoming Black Hills-Weston-Northeastern Crook-
634 AM MDT Sat Jul 7 2018

This Hazardous Weather Outlook is for portions of northwestern
South Dakota...the Black Hills of South Dakota...northeast
Wyoming...and the Black Hills of Wyoming.

.DAY ONE...Today and Tonight

Isolated thunderstorms, possibly strong to marginally severe,
could develop late this afternoon and evening across the area.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Isolated thunderstorms are possible Sunday into early next week
across parts of the area, mainly during the late afternoon and
evening hours. Severe storms are not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

SDZ002-012-013-081300-
Perkins-Butte-Northern Meade Co Plains-
634 AM MDT Sat Jul 7 2018

This Hazardous Weather Outlook is for portions of northwestern
South Dakota.

.DAY ONE...Today and Tonight

A heat advisory is in effect for this afternoon. High temperatures
will be around 100 degrees across the area, with heat index
values as high as 105.

Isolated thunderstorms, possibly strong to marginally severe,
could develop late this afternoon and evening across the area.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Isolated thunderstorms are possible Sunday into early next week
across parts of the area, mainly during the late afternoon and
evening hours. Severe storms are not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

SDZ026-027-030-031-041-042-044-047-073-074-081300-
Rapid City-Southern Foot Hills-Custer Co Plains-
Pennington Co Plains-Fall River-Oglala Lakota-Bennett-Todd-
Southern Meade Co Plains-Hermosa Foot Hills-
634 AM MDT Sat Jul 7 2018 /734 AM CDT Sat Jul 7 2018/

This Hazardous Weather Outlook is for portions of western South
Dakota.

.DAY ONE...Today and Tonight

A heat advisory is in effect for this afternoon. High temperatures
will be around 100 degrees across the area, with heat index
values as high as 105.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Isolated thunderstorms are possible Sunday evening. Severe storms
are not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

SDZ014-032-043-046-049-081300-
Ziebach-Haakon-Jackson-Mellette-Tripp-
634 AM MDT Sat Jul 7 2018 /734 AM CDT Sat Jul 7 2018/

This Hazardous Weather Outlook is for portions of western South
Dakota.

.DAY ONE...Today and Tonight

A heat advisory is in effect through early Sunday evening. Heat
index values as high as 105 are expected this afternoon and
Sunday afternoon across much of the area.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Isolated thunderstorms are possible Sunday evening. Severe storms
are not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

&&

Stay tuned to NOAA weather radio for further updates...or check
our web site at weather.gov/rapidcity

In the hours before

Special weather statement, Jul 7, 7:45 PM MST, 1 hour 50 minutes before
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Special weather statement, Jul 7, 7:47 PM MST, 1 hour 48 minutes before
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Special weather statement, Jul 7, 8:16 PM MST, 1 hour 19 minutes before
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Special weather statement, Jul 7, 8:25 PM MST, 1 hour 10 minutes before
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Special weather statement, Jul 7, 8:40 PM MST, 55 minutes before
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Local storm report, Jul 7, 9:28 PM MST, 7 minutes before
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The radar

The Rapid City radar (KUDX), 158 km away, was scanning. The volume nearest the first event began at 04:32 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Perkins

When
July 7, 9:35 PM MST
Where
Perkins County, Bison
Measured
51 kt (59 mph) measured gust
Reported by
AWOS
Coordinates
45.520, -102.470

Thunderstorm Wind, Perkins

When
July 7, 9:44 PM MST
Where
Perkins County, 7 mi S of Shadehill
Measured
57 kt (66 mph) measured gust
Reported by
RAWS
Coordinates
45.669, -102.180

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in South Dakota in 2018Every state in 2018This day in weather historyWarnings in South Dakota, July 2018

Sources

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 2026-09-30. Each event’s entry at NCEI: 761449, 761450.