Pilot Index / South Dakota / Aug 23, 2021

Preliminary

Storms in South Dakota on Aug 23, 2021

34 published severe reports across South Dakota on Aug 23, 2021.

Updated Oct 28, 2026.

Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail reports: 8. Wind reports: 26. Tornado reports: 0.

The table and map show 34 of 34 reports.

TimeWhatSize or SpeedWhereDetails
Aug 23, 2021, 5:15 PM CDTHail1.00 inWESTOVER
Record
  • Aug 23, 2021, 5:15 PM CDT. Hail, 1.00 in, WESTOVER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972474.
Aug 23, 2021, 5:25 PM CDTHail1.00 in5 NW WHITE RIVER
Record
  • Aug 23, 2021, 5:25 PM CDT. Hail, 1.00 in, 5 NW WHITE RIVER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9ad0fdf21005e2922a1f33b7892d34684326fcf6a4d0d8edf04c937a53e53d42.
Aug 23, 2021, 5:25 PM CDTHail1.00 inWHITE RIVER
Record
  • Aug 23, 2021, 5:25 PM CDT. Hail, 1.00 in, WHITE RIVER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972154.
Aug 23, 2021, 5:30 PM CDTWind60 mph5 NW WHITE RIVER
Record
  • Aug 23, 2021, 5:30 PM CDT. Wind, 60 mph, 5 NW WHITE RIVER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:73fb55824fb10bf210737478a848513c15c8b18a4de0387a0777ac290173cf8a.
Aug 23, 2021, 5:30 PM CDTWind60 mphWHITE RIVER
Record
  • Aug 23, 2021, 5:30 PM CDT. Wind, 60 mph, WHITE RIVER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972156.
Aug 23, 2021, 4:43 PM MDTWind84 mph27 WNW CASTLE ROCK
Record
  • Aug 23, 2021, 4:43 PM MDT. Wind, 84 mph, 27 WNW CASTLE ROCK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:aa6a088d6772f87c01a86b608a2e155628c8d91642a1c8a88e2147c08f7bb133.
Aug 23, 2021, 4:43 PM MDTWind84 mphCASTLE ROCK
Record
  • Aug 23, 2021, 4:43 PM MDT. Wind, 84 mph, CASTLE ROCK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972177.
Aug 23, 2021, 4:56 PM MDTWind84 mph27 WNW CASTLE ROCK
Record
  • Aug 23, 2021, 4:56 PM MDT. Wind, 84 mph, 27 WNW CASTLE ROCK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:03370590936bcce0726204aeb8c808099877bd1828337d0b414f3604cf6e7dbf.
Aug 23, 2021, 5:55 PM MDTWind60 mph12 WSW SOUTH EAGLE BUTT
Record
  • Aug 23, 2021, 5:55 PM MDT. Wind, 60 mph, 12 WSW SOUTH EAGLE BUTT. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d415bef5b88dec6eb1505a22623cff53ca40aa888e388be113d0b9858cbfdf7d.
Aug 23, 2021, 5:55 PM MDTWind80 mph14 SSE DUPREE
Record
  • Aug 23, 2021, 5:55 PM MDT. Wind, 80 mph, 14 SSE DUPREE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ee68b79a22f4d6de010600fef1234237d624f760ef89a60d00c4b0d25cebe4c3.
Aug 23, 2021, 5:55 PM MDTHail1.00 inCHERRY CREEK
Record
  • Aug 23, 2021, 5:55 PM MDT. Hail, 1.00 in, CHERRY CREEK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972206.
Aug 23, 2021, 5:55 PM MDTWind60 mphDUPREE
Record
  • Aug 23, 2021, 5:55 PM MDT. Wind, 60 mph, DUPREE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972214.
Aug 23, 2021, 5:55 PM MDTWind81 mphDUPREE
Record
  • Aug 23, 2021, 5:55 PM MDT. Wind, 81 mph, DUPREE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972229.
Aug 23, 2021, 6:13 PM MDTHail1.00 inLANTRY
Record
  • Aug 23, 2021, 6:13 PM MDT. Hail, 1.00 in, LANTRY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972475.
Aug 23, 2021, 6:19 PM MDTHail1.25 inLANTRY
Record
  • Aug 23, 2021, 6:19 PM MDT. Hail, 1.25 in, LANTRY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972476.
Aug 23, 2021, 8:02 PM MDTWind64 mph10 W EDGEMONT
Record
  • Aug 23, 2021, 8:02 PM MDT. Wind, 64 mph, 10 W EDGEMONT. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4f13dd4deb658889c1f8b49242281269e47a153805fefe4e6f1f27d7cdc029a9.
Aug 23, 2021, 8:15 PM MDTWind100 mphBULLHEAD
Record
  • Aug 23, 2021, 8:15 PM MDT. Wind, 100 mph, BULLHEAD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972477.
Aug 23, 2021, 8:25 PM MDTWind100 mphBULLHEAD
Record
  • Aug 23, 2021, 8:25 PM MDT. Wind, 100 mph, BULLHEAD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972478.
Aug 23, 2021, 8:26 PM MDTWind112 mph11 S BULLHEAD
Record
  • Aug 23, 2021, 8:26 PM MDT. Wind, 112 mph, 11 S BULLHEAD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:863a7c63c7920a9a7f8e54d102d8c096b4bfc5c4c817f1e320ba7de68fca8f84.
Aug 23, 2021, 8:26 PM MDTWind112 mphBULLHEAD
Record
  • Aug 23, 2021, 8:26 PM MDT. Wind, 112 mph, BULLHEAD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972479.
Aug 23, 2021, 8:46 PM MDTWind63 mph1 NE TIMBER LAKE
Record
  • Aug 23, 2021, 8:46 PM MDT. Wind, 63 mph, 1 NE TIMBER LAKE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:3d18103c146aacdfad4a6829ea28626489de7585ce64b49e45296643b9befd21.
Aug 23, 2021, 8:46 PM MDTWind63 mphTIMBER LAKE
Record
  • Aug 23, 2021, 8:46 PM MDT. Wind, 63 mph, TIMBER LAKE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972480.
Aug 23, 2021, 8:47 PM MDTHail1.00 inTIMBER LAKE
Record
  • Aug 23, 2021, 8:47 PM MDT. Hail, 1.00 in, TIMBER LAKE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972481.
Aug 23, 2021, 9:52 PM CDTWind60 mph6 SSW LITTLE EAGLE
Record
  • Aug 23, 2021, 9:52 PM CDT. Wind, 60 mph, 6 SSW LITTLE EAGLE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8fd4127e8dc4bf3feea3a67b838ed26fd2c1b6f708baae653ab2a9c582ca434e.
Aug 23, 2021, 9:52 PM CDTWind60 mphLITTLE EAGLE
Record
  • Aug 23, 2021, 9:52 PM CDT. Wind, 60 mph, LITTLE EAGLE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972482.
Aug 23, 2021, 9:06 PM MDTWind112 mph11 S BULLHEAD
Record
  • Aug 23, 2021, 9:06 PM MDT. Wind, 112 mph, 11 S BULLHEAD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d626f7962b5cdcdec55a820736de619c251325b30cc578968e0a5f5f3fb9ceaa.
Aug 23, 2021, 10:08 PM CDTWind65 mph4 W TRAIL CITY
Record
  • Aug 23, 2021, 10:08 PM CDT. Wind, 65 mph, 4 W TRAIL CITY. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:28911f44c9a84e0ed0a82351b38f6beb1632a86e840fe165dca3396feed72e06.
Aug 23, 2021, 10:08 PM CDTWind64 mphTRAIL CITY
Record
  • Aug 23, 2021, 10:08 PM CDT. Wind, 64 mph, TRAIL CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972483.
Aug 23, 2021, 10:48 PM CDTWind59 mph2 N HERREID
Record
  • Aug 23, 2021, 10:48 PM CDT. Wind, 59 mph, 2 N HERREID. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5d5a32c2ad602f2a2df6939110faf2218782ee0bab7521f2bfc9d66194af6f64.
Aug 23, 2021, 10:48 PM CDTWind59 mphHERREID MUNI ARPT
Record
  • Aug 23, 2021, 10:48 PM CDT. Wind, 59 mph, HERREID MUNI ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972484.
Aug 23, 2021, 11:24 PM CDTHail1.00 inGETTYSBURG
Record
  • Aug 23, 2021, 11:24 PM CDT. Hail, 1.00 in, GETTYSBURG. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972485.
Aug 23, 2021, 11:43 PM CDTWind58 mph10 SW LONG LAKE
Record
  • Aug 23, 2021, 11:43 PM CDT. Wind, 58 mph, 10 SW LONG LAKE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:2087c2a36a3f78b65236a65fc504e8f87ac1d21dbaf8bea55bbb30cfc4c6c0f6.
Aug 23, 2021, 11:45 PM CDTWind60 mphLONG LAKE
Record
  • Aug 23, 2021, 11:45 PM CDT. Wind, 60 mph, LONG LAKE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:9d5e0289c16494176d20e67cc7279561bb188018fbd33a6645b4b33967d1c7a9.
Aug 23, 2021, 11:45 PM CDTWind60 mphLANGLAKE
Record
  • Aug 23, 2021, 11:45 PM CDT. Wind, 60 mph, LANGLAKE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972487.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 473 source scopes are pending. Pending data is not a zero report count.

Hail counts at 1.00 in or larger. Wind counts at 58 mph or stronger. State days also include tornado reports.

Reports use the local civil date and clock. City pages use the city clock. State pages use each report location clock.

Exact repeated observations are counted once. Nearby reports with different times, coordinates or sizes remain separate observations.

NCEI rows are verified against NCEI Storm Events. SPC and NWS local reports are preliminary.

Radar signatures and warning polygons are not ground reports and are not in these counts.

A missing report does not show that no storm occurred. These pages show city or state exposure, not damage at an address.

This free page covers the state. It does not check a street address.

Limits

This page is not a certified record.

This page shows weather exposure, not damage or cause.

This page is not an expert opinion and it is not a meteorologist review.

Verify these rows with official NOAA and NWS records.

VectorWX is not affiliated with or endorsed by NOAA or NWS.

Radar-estimated hail size comes from MRMS MESH or NCEI nx3hail. It is an estimate of hail aloft. It is not a measurement of hail on a roof.