Damaging Winds in South Dakota, July 26, 2015

Name: Damaging Winds in South Dakota, July 26, 2015
Start: 2015-07-26T15:20
End: 2015-07-26T15:30
Location: South Dakota

July 26, 2015 · NWS UNR · 2 events in 1 county or zone

A thunderstorm briefly became severe over western Jackson County, producing wind gusts around 60 mph.

Where it happened

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

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

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 briefly became severe over western Jackson County, producing wind gusts around 60 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 26, 1:22 PM MST, 1 hour 58 minutes earlier.

Area forecast discussion, Jul 26, 1:22 PM MST, 1 hour 58 minutes before

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Hazardous weather outlook, Jul 26, 1:20 PM MST, 2 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE RAPID CITY SD
220 PM MDT SUN JUL 26 2015

SDZ001-002-012>014-024>032-041>044-046-047-049-072>074-WYZ054>058-
071-271300-
HARDING-PERKINS-BUTTE-NORTHERN MEADE CO PLAINS-ZIEBACH-
NORTHERN BLACK HILLS-NORTHERN FOOT HILLS-RAPID CITY-
SOUTHERN FOOT HILLS-CENTRAL BLACK HILLS-SOUTHERN BLACK HILLS-
CUSTER CO PLAINS-PENNINGTON CO PLAINS-HAAKON-FALL RIVER-SHANNON-
JACKSON-BENNETT-MELLETTE-TODD-TRIPP-STURGIS/PIEDMONT FOOT HILLS-
SOUTHERN MEADE CO PLAINS-HERMOSA FOOT HILLS-NORTHERN CAMPBELL-
SOUTHERN CAMPBELL-WESTERN CROOK-WYOMING BLACK HILLS-WESTON-
NORTHEASTERN CROOK-
220 PM MDT SUN JUL 26 2015

...RED FLAG WARNING FOR NORTHEASTERN WYOMING ON MONDAY...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN SOUTH DAKOTA AND
NORTHEASTERN WYOMING.

.DAY ONE...THIS AFTERNOON AND TONIGHT

ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS WESTERN
THROUGH SOUTH CENTRAL SOUTH DAKOTA THIS AFTERNOON AND EVENING.
THERE IS A SLIGHT RISK OF A FEW SEVERE STORMS WITH DAMAGING WINDS
AND LARGE HAIL...ESPECIALLY OVER SOUTHWEST THROUGH SOUTH CENTRAL
SOUTH DAKOTA.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

GUSTY SOUTH WINDS...VERY WARM WEATHER...AND LOW HUMIDITIES WILL
COMBINE TO CREATE CONDITIONS FAVORABLE FOR WILDFIRE GROWTH ACROSS
NORTHEASTERN WYOMING MONDAY AFTERNOON AND EVENING. IN ADDITION...
ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED MONDAY AFTERNOON
AND EVENING. THERE IS A SLIGHT RISK OF SEVERE STORMS WITH LARGE
HAIL AND DAMAGING WINDS OVER NORTHWESTERN THROUGH SOUTH CENTRAL
SOUTH DAKOTA.

FINALLY...A COLD FRONT WILL SWEEP THROUGH THE AREA MONDAY NIGHT
AND EARLY TUESDAY. THIS WILL BE FOLLOWED BY STRONG NORTHWEST
WINDS OVER MOST OF THE SOUTH DAKOTA PLAINS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

&&

STAY TUNED TO NOAA WEATHER RADIO FOR FURTHER DETAILS OR UPDATES...
OR CHECK OUR WEB SITE AT WEATHER.GOV/RAPIDCITY

In the hours before

Local storm report, Jul 26, 2:40 PM MST, 40 minutes before

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The radar

The Rapid City radar (KUDX), 98 km away, was scanning. The volume nearest the first event began at 22:21 UTC.

Open the radar archive at this moment

Event by event

2 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Jackson

When: July 26, 3:20 PM MST
Where: Jackson County, 10.26 mi ESE of Cactus Flats
Measured: 52 kt (60 mph) estimated gust
Reported by: Public
Coordinates: 43.777, -101.708

Wind gusts were estimated at 60 mph.

Thunderstorm Wind, Jackson

When: July 26, 3:30 PM MST
Where: Jackson County, 4 mi E of Cactus Flats
Measured: 51 kt (59 mph) measured gust
Reported by: Department of Highways
Coordinates: 43.830, -101.820

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

Every storm in South Dakota in 2015 Every state in 2015 This day in weather history Warnings in South Dakota, July 2015

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: 592344, 592345.