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South Dakota storm reports for August 18, 2026

NOAA recorded 7 hail reports and 6 wind reports in South Dakota on August 18, 2026.

in South Dakota
13
Storm reports
4 WSW Dwtn Rapid City, Pennington County, SD
1.5 in
Largest hail
6 NE Summerset, Meade County, SD
69 mph
Highest gust
0
Tornado reports
Sources: NOAA/NWS Storm Prediction Center reports; radar hail estimates from NOAA MRMS; gust estimates from NOAA URMA

Hail, inches

  • 0.75
  • 1
  • 1.5
  • 2
  • 2.5
  • 3+

Dots: reports. Shading: radar estimate.

  • Wind report
  • Estimated gusts, 50 to 90 mph

Source: NOAA/NWS Storm Prediction Center, preliminary storm reports. NOAA revises recent reports for several weeks. Report day: 12:00 UTC on August 18, 2026 to 12:00 UTC the next day. Times are Central.

Select a dot or a path for the report. Gust lines are estimates: the highest gust of the day in NOAA's hourly 2.5 km wind analysis (URMA), which fills in between weather stations. They aren't measurements at any building.

Reports by hour

Hail7, most at 9 PM

Wind6, most at 8 PM

Reports per hour, Central time. Each row has its own scale.

Every report

Source: NOAA/NWS Storm Prediction Center.

TimeSizeWhere
8:11 PM1.25 in1 NNE Brownsville, Lawrence County, SD
8:59 PM1.5 in4 WSW Dwtn Rapid City, Pennington County, SD
9:01 PM1.5 in5 SW Dwtn Rapid City, Pennington County, SD
9:02 PM1.0 in4 SSW Dwtn Rapid City, Pennington County, SD
9:03 PM1.0 in5 NE Rockerville, Pennington County, SD
9:06 PM1.5 in5 SSW Dwtn Rapid City, Pennington County, SD
9:08 PM1.25 in4 S Dwtn Rapid City, Pennington County, SD

Cities with reports nearby

Reports within 15 miles of the center of each city we track.

CityLargest hailHighest gustTornado reports
Rapid City, SD1.5 in69 mph0

Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.