Pilot Index / South Dakota / Aug 4, 2020

Preliminary

Storms in South Dakota on Aug 4, 2020

11 published severe reports across South Dakota on Aug 4, 2020.

Updated Oct 28, 2026.

Coverage is partial. 472 source scopes are pending. Pending data is not a zero report count.

Hail reports: 4. Wind reports: 2. Tornado reports: 5.

The table and map show 11 of 11 reports.

TimeWhatSize or SpeedWhereDetails
Aug 4, 2020, 6:18 PM CDTHail2.00 in5 N WITTEN
Record
  • Aug 4, 2020, 6:18 PM CDT. Hail, 2.00 in, 5 N WITTEN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c1d10dbe8c06b73ca6f46cb6a37d9db16385531e0fc105a8029ff1be2b4c5e56.
Aug 4, 2020, 6:18 PM CDTHail2.00 inWITTEN
Record
  • Aug 4, 2020, 6:18 PM CDT. Hail, 2.00 in, WITTEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:912088.
Aug 4, 2020, 6:29 PM CDTTornado3 NE WEWELA
Record
  • Aug 4, 2020, 6:29 PM CDT. Tornado, 3 NE WEWELA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:59608cd14afc94b27c2f4b124376349135b75912a7536d08fe8891742e68b201.
Aug 4, 2020, 6:29 PM CDTTornado3 NE WITTEN
Record
  • Aug 4, 2020, 6:29 PM CDT. Tornado, 3 NE WITTEN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b91524e999542ebd92127c70dc88c0821d7d445d92f4ed165dccbc0a229bbb8e.
Aug 4, 2020, 6:29 PM CDTTornadoWITTEN
Record
  • Aug 4, 2020, 6:29 PM CDT. Tornado, WITTEN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:916395.
Aug 4, 2020, 6:39 PM CDTTornado4 SW WINNER
Record
  • Aug 4, 2020, 6:39 PM CDT. Tornado, 4 SW WINNER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:e2f7dfb7abd916f3ee936097c72991bd34ccfa6dd2e20a947ae817829f2c0205.
Aug 4, 2020, 6:39 PM CDTTornadoWINNER
Record
  • Aug 4, 2020, 6:39 PM CDT. Tornado, WINNER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:916396.
Aug 4, 2020, 7:30 PM CDTHail1.00 in3 ENE WEWELA
Record
  • Aug 4, 2020, 7:30 PM CDT. Hail, 1.00 in, 3 ENE WEWELA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:5c5e3fcc553f9aef8bc190c23c73fcdd7bb7baf3ff7db08f6fb5df1f440f8a3e.
Aug 4, 2020, 7:30 PM CDTWind60 mph4 NE WEWELA
Record
  • Aug 4, 2020, 7:30 PM CDT. Wind, 60 mph, 4 NE WEWELA. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:f07d4673be5a0f13c89576969b101dc29f8973c280348f479144897a3d15f1a1.
Aug 4, 2020, 7:30 PM CDTHail1.00 inWEWELA
Record
  • Aug 4, 2020, 7:30 PM CDT. Hail, 1.00 in, WEWELA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:912089.
Aug 4, 2020, 7:30 PM CDTWind60 mphWEWELA
Record
  • Aug 4, 2020, 7:30 PM CDT. Wind, 60 mph, WEWELA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:912090.
How We Count

This page uses published ground reports from 2016-01-01 through 2026-10-29. Coverage is partial. 472 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.