Storms in South Dakota on Aug 18, 2018

11 published severe reports across South Dakota on Aug 18, 2018.

Updated Oct 28, 2026.

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

Hail reports: 10. Wind reports: 1. Tornado reports: 0.

The table and map show 11 of 11 reports.

Time	What	Size or Speed	Where	Details
Aug 18, 2018, 1:30 PM MDT	Hail	1.00 in	CENTRAL CITY	Record Aug 18, 2018, 1:30 PM MDT. Hail, 1.00 in, CENTRAL CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772640.
Aug 18, 2018, 1:30 PM MDT	Hail	1.00 in	5 N CENTRAL CITY	Record Aug 18, 2018, 1:30 PM MDT. Hail, 1.00 in, 5 N CENTRAL CITY. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:e5ddaa81d848294be04b4ce9c7f62f7a6f2aee38bf798585e8e5305e25b1027c.
Aug 18, 2018, 2:20 PM MDT	Hail	1.00 in	GALENA	Record Aug 18, 2018, 2:20 PM MDT. Hail, 1.00 in, GALENA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772675.
Aug 18, 2018, 2:20 PM MDT	Hail	1.00 in	3 ESE GALENA	Record Aug 18, 2018, 2:20 PM MDT. Hail, 1.00 in, 3 ESE GALENA. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:ead56f6a73e7a0ce50def7bcc0141836590491919a1274e25e5186fd9c7e52ea.
Aug 18, 2018, 2:32 PM MDT	Hail	1.00 in	WHITEWOOD	Record Aug 18, 2018, 2:32 PM MDT. Hail, 1.00 in, WHITEWOOD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772682.
Aug 18, 2018, 2:32 PM MDT	Hail	1.00 in	5 SSE WHITEWOOD	Record Aug 18, 2018, 2:32 PM MDT. Hail, 1.00 in, 5 SSE WHITEWOOD. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:d7e69f19a45c27465e82c2e955a2a45ca833595aaf6640c01deba93934147811.
Aug 18, 2018, 2:41 PM MDT	Hail	1.00 in	TILFORD	Record Aug 18, 2018, 2:41 PM MDT. Hail, 1.00 in, TILFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772668.
Aug 18, 2018, 2:41 PM MDT	Hail	1.00 in	4 NNW TILFORD	Record Aug 18, 2018, 2:41 PM MDT. Hail, 1.00 in, 4 NNW TILFORD. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:8561b68b86f20067c38086c330e8d2e930d01098f6383fc6dea836b6051fe230.
Aug 18, 2018, 3:02 PM MDT	Hail	1.00 in	PIEDMONT	Record Aug 18, 2018, 3:02 PM MDT. Hail, 1.00 in, PIEDMONT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772684.
Aug 18, 2018, 3:02 PM MDT	Hail	1.00 in	1 NNW PIEDMONT	Record Aug 18, 2018, 3:02 PM MDT. Hail, 1.00 in, 1 NNW PIEDMONT. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:3dc8c02391538d554bbc4a83e3595bbb5838f2dc6909f51324692aa62ec5289d.
Aug 18, 2018, 5:29 PM MDT	Wind	60 mph	WANBLEE	Record Aug 18, 2018, 5:29 PM MDT. Wind, 60 mph, WANBLEE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772685.

Hail, 1.00 in

Aug 18, 2018, 1:30 PM MDT

CENTRAL CITY
Record
- Aug 18, 2018, 1:30 PM MDT. Hail, 1.00 in, CENTRAL CITY. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772640.
Hail, 1.00 in

Aug 18, 2018, 1:30 PM MDT

5 N CENTRAL CITY
Record
- Aug 18, 2018, 1:30 PM MDT. Hail, 1.00 in, 5 N CENTRAL CITY. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:e5ddaa81d848294be04b4ce9c7f62f7a6f2aee38bf798585e8e5305e25b1027c.
Hail, 1.00 in

Aug 18, 2018, 2:20 PM MDT

GALENA
Record
- Aug 18, 2018, 2:20 PM MDT. Hail, 1.00 in, GALENA. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772675.
Hail, 1.00 in

Aug 18, 2018, 2:20 PM MDT

3 ESE GALENA
Record
- Aug 18, 2018, 2:20 PM MDT. Hail, 1.00 in, 3 ESE GALENA. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:ead56f6a73e7a0ce50def7bcc0141836590491919a1274e25e5186fd9c7e52ea.
Hail, 1.00 in

Aug 18, 2018, 2:32 PM MDT

WHITEWOOD
Record
- Aug 18, 2018, 2:32 PM MDT. Hail, 1.00 in, WHITEWOOD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772682.
Hail, 1.00 in

Aug 18, 2018, 2:32 PM MDT

5 SSE WHITEWOOD
Record
- Aug 18, 2018, 2:32 PM MDT. Hail, 1.00 in, 5 SSE WHITEWOOD. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:d7e69f19a45c27465e82c2e955a2a45ca833595aaf6640c01deba93934147811.
Hail, 1.00 in

Aug 18, 2018, 2:41 PM MDT

TILFORD
Record
- Aug 18, 2018, 2:41 PM MDT. Hail, 1.00 in, TILFORD. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772668.
Hail, 1.00 in

Aug 18, 2018, 2:41 PM MDT

4 NNW TILFORD
Record
- Aug 18, 2018, 2:41 PM MDT. Hail, 1.00 in, 4 NNW TILFORD. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:8561b68b86f20067c38086c330e8d2e930d01098f6383fc6dea836b6051fe230.
Hail, 1.00 in

Aug 18, 2018, 3:02 PM MDT

PIEDMONT
Record
- Aug 18, 2018, 3:02 PM MDT. Hail, 1.00 in, PIEDMONT. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772684.
Hail, 1.00 in

Aug 18, 2018, 3:02 PM MDT

1 NNW PIEDMONT
Record
- Aug 18, 2018, 3:02 PM MDT. Hail, 1.00 in, 1 NNW PIEDMONT. Source: SPC Preliminary Reports. Status: Preliminary. Record id: spc:3dc8c02391538d554bbc4a83e3595bbb5838f2dc6909f51324692aa62ec5289d.
Wind, 60 mph

Aug 18, 2018, 5:29 PM MDT

WANBLEE
Record
- Aug 18, 2018, 5:29 PM MDT. Wind, 60 mph, WANBLEE. Source: NCEI Storm Events. Status: Verified against NCEI Storm Events. Record id: ncei:772685.

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.