Hail and Damaging Wind in South Dakota, July 9, 2019

Name: Hail and Damaging Wind in South Dakota, July 9, 2019
Start: 2019-07-09T19:19
End: 2019-07-09T19:19
Location: South Dakota

July 9, 2019 · NWS UNR · 2 events in 1 county or zone

A thunderstorm became severe as it tracked across southern 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: 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 tracked across southern 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 36 minutes earlier.

Area forecast discussion, Jul 9, 5:43 PM CST, 1 hour 36 minutes before

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Hazardous weather outlook, Jul 9, 5:22 AM CST, 13 hours 57 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 27 minutes before

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Local storm report, Jul 9, 5:01 PM CST, 2 hours 18 minutes before

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Local storm report, Jul 9, 5:28 PM CST, 1 hour 51 minutes before

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Local storm report, Jul 9, 5:43 PM CST, 1 hour 36 minutes before

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Special weather statement, Jul 9, 5:55 PM CST, 1 hour 24 minutes before

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Local storm report, Jul 9, 5:59 PM CST, 1 hour 20 minutes before

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The radar

The North Platte radar (KLNX), 135 km away, was scanning. The volume nearest the first event began at 01:19 UTC.

Open the radar archive at this moment

Event by event

1 hail, 1 thunderstorm wind. Local standard time, as filed.

Hail, Tripp

When: July 9, 7:19 PM CST
Where: Tripp County, 1 mi N of Millboro
Measured: 1 in hail
Reported by: Public
Coordinates: 43.084, -99.970

Thunderstorm Wind, Tripp

When: July 9, 7:19 PM CST
Where: Tripp County, 1 mi N of Millboro
Measured: 52 kt (60 mph) estimated gust
Reported by: Public
Coordinates: 43.084, -99.970

Wind gusts were estimated at 60 mph.

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
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 2019 Every state in 2019 This day in weather history Warnings 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: 837664, 837665.