Pilot Index / South Dakota / Aug 27, 2021

Preliminary

Storms in South Dakota on Aug 27, 2021

16 published severe reports across South Dakota on Aug 27, 2021.

Updated Oct 28, 2026.

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

Hail reports: 3. Wind reports: 13. Tornado reports: 0.

The table and map show 16 of 16 reports.

TimeWhatSize or SpeedWhereDetails
Aug 27, 2021, 12:18 AM CDTWind60 mphBERESFORD
Record
  • Aug 27, 2021, 12:18 AM CDT. Wind, 60 mph, BERESFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:982507.
Aug 27, 2021, 12:18 AM CDTWind64 mphBERESFORD
Record
  • Aug 27, 2021, 12:18 AM CDT. Wind, 64 mph, BERESFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:982509.
Aug 27, 2021, 12:20 AM CDTWind64 mphALSEN
Record
  • Aug 27, 2021, 12:20 AM CDT. Wind, 64 mph, ALSEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:982511.
Aug 27, 2021, 12:31 AM CDTWind59 mph1 E HAYES
Record
  • Aug 27, 2021, 12:31 AM CDT. Wind, 59 mph, 1 E HAYES. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e408d5f31ede74f3edb7fd41b755e464973b1db1e473fc96c027a78a133eeda4.
Aug 27, 2021, 12:31 AM CDTWind59 mphHAYES AIRSTRIP
Record
  • Aug 27, 2021, 12:31 AM CDT. Wind, 59 mph, HAYES AIRSTRIP. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:980790.
Aug 27, 2021, 12:49 AM CDTWind64 mph10 SW CHANTLER CREEK RE
Record
  • Aug 27, 2021, 12:49 AM CDT. Wind, 64 mph, 10 SW CHANTLER CREEK RE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:4424322012a631adf8e5b7fb3353fd808e882ea57689b9dba6f24140990d3b02.
Aug 27, 2021, 12:49 AM CDTWind64 mphLACY
Record
  • Aug 27, 2021, 12:49 AM CDT. Wind, 64 mph, LACY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:980791.
Aug 27, 2021, 3:58 AM CDTWind61 mph9 NNW VIVIAN
Record
  • Aug 27, 2021, 3:58 AM CDT. Wind, 61 mph, 9 NNW VIVIAN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:89aafbddb3273717545df597793f9141dffdf48bebdc840b0797e096632a6bdf.
Aug 27, 2021, 3:58 AM CDTWind61 mphMC CLURE
Record
  • Aug 27, 2021, 3:58 AM CDT. Wind, 61 mph, MC CLURE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:980792.
Aug 27, 2021, 5:20 PM MDTHail1.75 inCASTLE ROCK
Record
  • Aug 27, 2021, 5:20 PM MDT. Hail, 1.75 in, CASTLE ROCK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972388.
Aug 27, 2021, 5:42 PM MDTWind70 mph1 WNW HOOVER
Record
  • Aug 27, 2021, 5:42 PM MDT. Wind, 70 mph, 1 WNW HOOVER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:11bbb203ac83f96e0f3f2d5dc8531342c7741c498ad4f1a2bef2019dcf4a9555.
Aug 27, 2021, 5:42 PM MDTHail1.00 in1 WNW HOOVER
Record
  • Aug 27, 2021, 5:42 PM MDT. Hail, 1.00 in, 1 WNW HOOVER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:24ab8492621781c6b6033c2ade5ca4ad91fed7b33bf79d3f7ff4f6d0ccea9aa8.
Aug 27, 2021, 5:42 PM MDTHail1.00 inHOOVER
Record
  • Aug 27, 2021, 5:42 PM MDT. Hail, 1.00 in, HOOVER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972390.
Aug 27, 2021, 5:42 PM MDTWind70 mphHOOVER
Record
  • Aug 27, 2021, 5:42 PM MDT. Wind, 70 mph, HOOVER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972391.
Aug 27, 2021, 6:30 PM MDTWind60 mph10 ESE ZEONA
Record
  • Aug 27, 2021, 6:30 PM MDT. Wind, 60 mph, 10 ESE ZEONA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b42714d4abba85c5f476a28b546feb6892319f6c402cbcdc8faad5b20a46edf9.
Aug 27, 2021, 6:30 PM MDTWind60 mphZEONA
Record
  • Aug 27, 2021, 6:30 PM MDT. Wind, 60 mph, ZEONA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:972402.
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.