Pilot Index / South Dakota / Jul 21, 2017

Preliminary

Storms in South Dakota on Jul 21, 2017

39 published severe reports across South Dakota on Jul 21, 2017.

Updated Oct 28, 2026.

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

Hail reports: 9. Wind reports: 30. Tornado reports: 0.

The table and map show 39 of 39 reports.

TimeWhatSize or SpeedWhereDetails
Jul 21, 2017, 12:30 AM CDTWind59 mph2 N HERREID
Record
  • Jul 21, 2017, 12:30 AM CDT. Wind, 59 mph, 2 N HERREID. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b13383d6e1cba7928841e526feb39a8a3fa563d8a27a2f72c85958b808347653.
Jul 21, 2017, 1:15 AM CDTWind60 mph10 W LONG LAKE
Record
  • Jul 21, 2017, 1:15 AM CDT. Wind, 60 mph, 10 W LONG LAKE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:726e6a522b761c15375816da561c6ff8472e18375f99c3787c956da217495b1d.
Jul 21, 2017, 6:00 AM CDTHail1.00 inDE SMET
Record
  • Jul 21, 2017, 6:00 AM CDT. Hail, 1.00 in, DE SMET. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:714067.
Jul 21, 2017, 6:30 AM CDTHail1.00 inWESSINGTON SPGS
Record
  • Jul 21, 2017, 6:30 AM CDT. Hail, 1.00 in, WESSINGTON SPGS. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:714069.
Jul 21, 2017, 7:15 AM CDTWind60 mphNEW EFFINGTON
Record
  • Jul 21, 2017, 7:15 AM CDT. Wind, 60 mph, NEW EFFINGTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:603a9add4f8dce09a8c6a3737558bf60c777741b619e09dab175dec0954c2886.
Jul 21, 2017, 6:24 PM CDTWind60 mphCLAIRE CITY
Record
  • Jul 21, 2017, 6:24 PM CDT. Wind, 60 mph, CLAIRE CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715585.
Jul 21, 2017, 7:15 PM CDTWind60 mphNEW EFFINGTON
Record
  • Jul 21, 2017, 7:15 PM CDT. Wind, 60 mph, NEW EFFINGTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:ec43dc1d204d0b25624ae57e6c4481b964a2b26a9f513c10c33a6bd367730304.
Jul 21, 2017, 7:15 PM CDTWind60 mphNEW EFFINGTON
Record
  • Jul 21, 2017, 7:15 PM CDT. Wind, 60 mph, NEW EFFINGTON. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715591.
Jul 21, 2017, 7:50 PM CDTWind66 mph5 WNW MCLAUGHLIN
Record
  • Jul 21, 2017, 7:50 PM CDT. Wind, 66 mph, 5 WNW MCLAUGHLIN. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:3201741778cab1bd5843cc5adafd874955ebbf03a210ac1023feada94ef41883.
Jul 21, 2017, 7:50 PM CDTWind66 mphMC LAUGHLIN
Record
  • Jul 21, 2017, 7:50 PM CDT. Wind, 66 mph, MC LAUGHLIN. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715592.
Jul 21, 2017, 8:15 PM CDTWind64 mph2 SSE MAHTO
Record
  • Jul 21, 2017, 8:15 PM CDT. Wind, 64 mph, 2 SSE MAHTO. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8adfb195d1ee9e04cb728296b68c8e544c4ca2e1522609bf78927690b7cc41d8.
Jul 21, 2017, 8:15 PM CDTWind64 mphMAHTO
Record
  • Jul 21, 2017, 8:15 PM CDT. Wind, 64 mph, MAHTO. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715593.
Jul 21, 2017, 8:19 PM CDTHail1.00 inLANGLAKE
Record
  • Jul 21, 2017, 8:19 PM CDT. Hail, 1.00 in, LANGLAKE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715579.
Jul 21, 2017, 8:37 PM CDTHail1.75 inWECOTA
Record
  • Jul 21, 2017, 8:37 PM CDT. Hail, 1.75 in, WECOTA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715580.
Jul 21, 2017, 8:54 PM CDTHail2.50 inWECOTA
Record
  • Jul 21, 2017, 8:54 PM CDT. Hail, 2.50 in, WECOTA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715581.
Jul 21, 2017, 8:54 PM CDTWind70 mphWECOTA
Record
  • Jul 21, 2017, 8:54 PM CDT. Wind, 70 mph, WECOTA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715586.
Jul 21, 2017, 9:23 PM CDTHail1.00 inLOWRY
Record
  • Jul 21, 2017, 9:23 PM CDT. Hail, 1.00 in, LOWRY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715582.
Jul 21, 2017, 10:00 PM CDTHail1.00 inGETTYSBURG
Record
  • Jul 21, 2017, 10:00 PM CDT. Hail, 1.00 in, GETTYSBURG. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715583.
Jul 21, 2017, 10:23 PM CDTWind75 mphREDFIELD
Record
  • Jul 21, 2017, 10:23 PM CDT. Wind, 75 mph, REDFIELD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:da2f47bb2242f0ba05f6fc5d901090f2179d32b0a999b57b9a61035d5ddff65d.
Jul 21, 2017, 10:23 PM CDTWind75 mphREDFIELD
Record
  • Jul 21, 2017, 10:23 PM CDT. Wind, 75 mph, REDFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715594.
Jul 21, 2017, 10:36 PM CDTWind75 mphTULARE
Record
  • Jul 21, 2017, 10:36 PM CDT. Wind, 75 mph, TULARE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715587.
Jul 21, 2017, 10:46 PM CDTHail1.00 in4 SW BRENTFORD
Record
  • Jul 21, 2017, 10:46 PM CDT. Hail, 1.00 in, 4 SW BRENTFORD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:bae01970ba8285c4ebac31ea1f4bb321790289fdcca1771df57edbb74592d9db.
Jul 21, 2017, 10:46 PM CDTHail1.00 in5 SW REDFIELD
Record
  • Jul 21, 2017, 10:46 PM CDT. Hail, 1.00 in, 5 SW REDFIELD. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:d921b7606e27809b74af9029b23b60e5ede41e5f6b31cbe59bc352551cfb1fb6.
Jul 21, 2017, 10:51 PM CDTWind60 mphHITCHCOCK
Record
  • Jul 21, 2017, 10:51 PM CDT. Wind, 60 mph, HITCHCOCK. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:55eea52234f4bbce63112f465534b15426b2f5861b1d0d0fda45708edb7fc10b.
Jul 21, 2017, 10:51 PM CDTWind60 mphHITCHCOCK
Record
  • Jul 21, 2017, 10:51 PM CDT. Wind, 60 mph, HITCHCOCK. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:714070.
Jul 21, 2017, 10:53 PM CDTWind70 mphREDFIELD ARPT
Record
  • Jul 21, 2017, 10:53 PM CDT. Wind, 70 mph, REDFIELD ARPT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715588.
Jul 21, 2017, 11:00 PM CDTWind60 mph6 W VERDON
Record
  • Jul 21, 2017, 11:00 PM CDT. Wind, 60 mph, 6 W VERDON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c93be81a9dd08012315d180c97c5ded251ad8d50afbcb1a24e56e9b7899e9881.
Jul 21, 2017, 11:00 PM CDTWind60 mphBRENTFORD
Record
  • Jul 21, 2017, 11:00 PM CDT. Wind, 60 mph, BRENTFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715595.
Jul 21, 2017, 11:18 PM CDTWind63 mph11 NW YALE
Record
  • Jul 21, 2017, 11:18 PM CDT. Wind, 63 mph, 11 NW YALE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b0249b4a034e7a3cc8610ef81f0a9be149a4edcaf212bbdfb07c430e595ba5ad.
Jul 21, 2017, 11:18 PM CDTWind63 mphBLOOMFIELD
Record
  • Jul 21, 2017, 11:18 PM CDT. Wind, 63 mph, BLOOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:714072.
Jul 21, 2017, 11:23 PM CDTWind75 mph4 S CONDE
Record
  • Jul 21, 2017, 11:23 PM CDT. Wind, 75 mph, 4 S CONDE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:286fc736bf74a1dcfb143751c66487d81aaa2fea5d030503adc8569e5a9afb70.
Jul 21, 2017, 11:23 PM CDTWind75 mphCONDE
Record
  • Jul 21, 2017, 11:23 PM CDT. Wind, 75 mph, CONDE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715596.
Jul 21, 2017, 11:32 PM CDTWind73 mph11 N YALE
Record
  • Jul 21, 2017, 11:32 PM CDT. Wind, 73 mph, 11 N YALE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:b08271aa877775c4cd31bed1b63a41c612da15ea01a35c4b0849a53be24e282a.
Jul 21, 2017, 11:32 PM CDTWind72 mphBLOOMFIELD
Record
  • Jul 21, 2017, 11:32 PM CDT. Wind, 72 mph, BLOOMFIELD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:714073.
Jul 21, 2017, 11:35 PM CDTWind58 mph1 NW SAINT LAWRENCE
Record
  • Jul 21, 2017, 11:35 PM CDT. Wind, 58 mph, 1 NW SAINT LAWRENCE. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:0e9e2201bed1bf09ece27b0d93bd1f24b5435b2146c898e781152a416811dbbf.
Jul 21, 2017, 11:42 PM CDTWind75 mphTURTON
Record
  • Jul 21, 2017, 11:42 PM CDT. Wind, 75 mph, TURTON. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:8796957eaaa2cd11dfe882c9f7dfb71ca35d075b186e453e23c1a3924c611b7c.
Jul 21, 2017, 11:42 PM CDTWind75 mphTURTON
Record
  • Jul 21, 2017, 11:42 PM CDT. Wind, 75 mph, TURTON. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715598.
Jul 21, 2017, 11:45 PM CDTWind60 mph1 S MILLER
Record
  • Jul 21, 2017, 11:45 PM CDT. Wind, 60 mph, 1 S MILLER. Source: NWS Local Storm Reports. Status: Preliminary. Record id: lsr:c9865292a2b64ed8205c994021f1ca023c9bedd7ea9a509f3377fa0d8e8a23db.
Jul 21, 2017, 11:45 PM CDTWind60 mphMILLER
Record
  • Jul 21, 2017, 11:45 PM CDT. Wind, 60 mph, MILLER. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:715599.
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.