Hail in South Dakota, July 18, 2023

Name: Hail in South Dakota, July 18, 2023
Start: 2023-07-18T03:55
End: 2023-07-18T04:10
Location: South Dakota

July 18, 2023 · NWS UNR · 2 events in 1 county or zone

An early morning severe thunderstorm developed over portions of Todd County, producing hail to golf ball size.

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.

An early morning severe thunderstorm developed over portions of Todd County, producing hail to golf ball size.

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 18, 2:12 AM CST, 1 hour 43 minutes earlier.

Area forecast discussion, Jul 18, 2:12 AM CST, 1 hour 43 minutes before

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Hazardous weather outlook, Jul 17, 10:41 AM CST, 17 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Rapid City SD
1041 AM MDT Mon Jul 17 2023

SDZ012-013-024>032-041>044-046-047-049-072>074-WYZ054>058-071-
181300-
Butte-Northern Meade Co Plains-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-
Northeastern Crook-
1041 AM MDT Mon Jul 17 2023 /1141 AM CDT Mon Jul 17 2023/

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

.DAY ONE...Today and Tonight

Poor air quality will continue today, but will gradually improve
by Tuesday morning.

There is a slight risk (level 2 of 5) of severe thunderstorms
late this afternoon and through this evening, meaning that
scattered severe storms are possible. Primary hazards include
large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms are expected Tuesday night, Thursday night, and
Friday. Severe storms will be possible at times.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed today.

&&

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

SDZ001-002-014-181300-
Harding-Perkins-Ziebach-
1041 AM MDT Mon Jul 17 2023

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

.DAY ONE...Today and Tonight

Poor air quality will continue today, but will gradually improve
by Tuesday morning.

There is a marginal risk (level 1 of 5) of severe thunderstorms
late this afternoon and through this evening, meaning that
isolated severe storms are possible. Primary hazards include
large hail and damaging winds.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms are expected Tuesday night, Thursday night, and
Friday. Severe storms will be possible at times.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may 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 17, 10:46 PM CST, 5 hours 9 minutes before

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Local storm report, Jul 17, 10:56 PM CST, 4 hours 59 minutes before

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Special weather statement, Jul 18, 12:49 AM CST, 3 hours 6 minutes before

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Special weather statement, Jul 18, 1:42 AM CST, 2 hours 13 minutes before

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Special weather statement, Jul 18, 2:27 AM CST, 1 hour 28 minutes before

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Special weather statement, Jul 18, 3:43 AM CST, 12 minutes before

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The radar

The North Platte radar (KLNX), 146 km away, was scanning. The volume nearest the first event began at 09:55 UTC.

Open the radar archive at this moment

Event by event

2 hail. Local standard time, as filed.

Hail, Todd

When: July 18, 3:55 AM CST
Where: Todd County, 2 mi N of Rosebud
Measured: 1 in hail
Reported by: Trained Spotter
Coordinates: 43.259, -100.850

Hail, Todd

When: July 18, 4:00 AM CST to 4:10 AM CST
Where: Todd County, 4 mi SSW of Mission
Measured: 1.75 in hail
Reported by: Public
Coordinates: 43.257, -100.690

What these are

Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

Every storm in South Dakota in 2023 Every state in 2023 This day in weather history Warnings in South Dakota, July 2023

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: 1110184, 1110186.