South Dakota, 2020

Hail in South Dakota, June 30, 2020

June 30, 2020 · NWS FSD · 1 event in 1 county or zone

A frontal zone moved into southeast South Dakota during the evening. Scattered stronger storms developed post-frontal in an elevated CAPE environment up to 3000 J/kg, but with weak mid-level flow and deep-layer shear.

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
1

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 FSD wrote it up.

A frontal zone moved into southeast South Dakota during the evening. Scattered stronger storms developed post-frontal in an elevated CAPE environment up to 3000 J/kg, but with weak mid-level flow and deep-layer shear.

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 Sioux Falls, SD wrote its last area forecast discussion before the first event at Jun 30, 5:19 PM CST, 4 hours 31 minutes earlier.

Area forecast discussion, Jun 30, 5:19 PM CST, 4 hours 31 minutes before
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Hazardous weather outlook, Jun 30, 1:07 PM CST, 8 hours 43 minutes before
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The radar

The North Platte radar (KLNX), 168 km away, was scanning. The volume nearest the first event began at 03:50 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Gregory

When
June 30, 9:50 PM CST to 9:52 PM CST
Where
Gregory County, 4 mi SSW of St Charles
Measured
1 in hail
Reported by
Public
Coordinates
43.030, -99.140

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

More

Every storm in South Dakota in 2020Every state in 2020This day in weather historyWarnings in South Dakota, June 2020

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: 907098.