South Dakota, 2019

Damaging Winds in South Dakota, July 9, 2019

July 9, 2019 · NWS UNR · 4 events in 1 county or zone

A severe thunderstorm brought damaging winds to central Tripp County.

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
4

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 severe thunderstorm brought damaging winds to central Tripp County.

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 9, 5:43 PM CST, 1 hour 12 minutes earlier.

Area forecast discussion, Jul 9, 5:43 PM CST, 1 hour 12 minutes before
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Hazardous weather outlook, Jul 9, 5:22 AM CST, 13 hours 33 minutes before
Hazardous Weather Outlook
National Weather Service Rapid City SD
522 AM MDT Tue Jul 9 2019

SDZ024>032-041>044-046-047-049-072>074-WYZ054>058-101300-
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-
Oglala Lakota-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-
522 AM MDT Tue Jul 9 2019 /622 AM CDT Tue Jul 9 2019/

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

.DAY ONE...Today and Tonight

There is a slight risk for severe thunderstorms across the area
this afternoon and early evening. Large hail and strong wind
gusts will be the primary threats from any severe storms. Brief
heavy rainfall is also possible with any stronger storms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

There is a chance for thunderstorms from Friday through the
weekend. At this time, there looks to be at least some potential
for strong to severe storms on any of those days.

.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

SDZ001-002-012>014-WYZ071-101300-
Harding-Perkins-Butte-Northern Meade Co Plains-Ziebach-
Northeastern Crook-
522 AM MDT Tue Jul 9 2019

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

.DAY ONE...Today and Tonight

There is a marginal risk for severe thunderstorms across the area
this afternoon and early evening. Hail and strong wind gusts will
be the primary threats from any strong to severe storms. Brief
heavy rainfall is also possible with any stronger storms.

Northwest winds will increase this morning behind a passing cold
front. Some gusts of 40 to 45 mph are expected across the area
from midday through the early evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

There is a chance for thunderstorms from Friday through the
weekend. At this time, there looks to be at least some potential
for strong to severe storms on any of those days.

.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

Local storm report, Jul 9, 4:52 PM CST, 2 hours 3 minutes before
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Local storm report, Jul 9, 5:01 PM CST, 1 hour 54 minutes before
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Local storm report, Jul 9, 5:28 PM CST, 1 hour 27 minutes before
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Local storm report, Jul 9, 5:43 PM CST, 1 hour 12 minutes before
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Special weather statement, Jul 9, 5:55 PM CST, 1 hour before
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Local storm report, Jul 9, 5:59 PM CST, 56 minutes before
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The radar

The North Platte radar (KLNX), 162 km away, was scanning. The volume nearest the first event began at 00:54 UTC.

Open the radar archive at this moment

Event by event

4 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Tripp

When
July 9, 6:55 PM CST
Where
Tripp County, 5 mi SSE of Witten
Measured
61 kt (70 mph) estimated gust
Reported by
Law Enforcement
Coordinates
43.363, -100.042

Several power poles were blown down along SD Highway 53 from 278th Street to 279th Street.

Thunderstorm Wind, Tripp

When
July 9, 6:56 PM CST
Where
Tripp County, 3.06 mi SSE of Witten
Measured
62 kt (71 mph) measured gust
Reported by
Mesonet
Coordinates
43.387, -100.065

Thunderstorm Wind, Tripp

When
July 9, 7:00 PM CST
Where
Tripp County, 5 mi NW of Colome
Measured
61 kt (70 mph) estimated gust
Reported by
Trained Spotter
Coordinates
43.301, -99.790

Hay bales were blown across the road. Some vehicles were struck by hay bales and knocked off the road.

Thunderstorm Wind, Tripp

When
July 9, 7:05 PM CST
Where
Tripp County, 5 mi SSE of Winner
Measured
52 kt (60 mph) estimated gust
Reported by
Trained Spotter
Coordinates
43.303, -99.832

The spotter estimated wind gusts at 60 mph.

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 2019Every state in 2019This day in weather historyWarnings in South Dakota, July 2019

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 2026-10-01. Each event’s entry at NCEI: 837654, 837655, 837658, 837660.