Alert archive / South Dakota / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 184, NWS Rapid City, SD
NWS Rapid City, SD issued this severe thunderstorm warning at Aug 26, 2021, 6:54 PM MDT for Custer County, Pennington County, South Dakota. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 26, 2021, 6:54 PM MDT (00:54 UTC)
- Expired
- Aug 26, 2021, 8:00 PM MDT
- In force
- 66 min
- Issued by
- NWS Rapid City, SD
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 1.75 in
- Wind
- 50.0 mph
Counties Custer County, SD, Pennington County, SD
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Rapid City, SD wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 26, 5:46 PM MDT, 1 hour 8 minutes earlier.
Area forecast discussion, Aug 26, 5:46 PM MDT, 1 hour 8 minutes before
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</html>Hazardous weather outlook, Aug 26, 4:06 AM MDT, 14 hours 48 minutes before
Hazardous Weather Outlook National Weather Service Rapid City SD 406 AM MDT Thu Aug 26 2021 WYZ054>056-058-271015- Northern Campbell-Southern Campbell-Western Crook-Weston- 406 AM MDT Thu Aug 26 2021 This Hazardous Weather Outlook is for portions of northeast Wyoming. .DAY ONE...Today and Tonight There is a marginal risk of severe thunderstorms late this afternoon and evening. Large hail and damaging winds will be the main threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday A few thunderstorms are possible on Friday and Saturday, but widespread severe storms are not expected. A Fire Weather Watch is in effect for Friday afternoon and evening for relative humidities of 10 to 15 percent and southwest winds gusting around 30 mph. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. && Stay tuned to NOAA weather radio for further updates...or check our web site at weather.gov/rapidcity SDZ001-002-012-024-025-WYZ057-071-271015- Harding-Perkins-Butte-Northern Black Hills-Northern Foot Hills- Wyoming Black Hills-Northeastern Crook- 406 AM MDT Thu Aug 26 2021 This Hazardous Weather Outlook is for portions of western South Dakota and northeastern Wyoming. .DAY ONE...Today and Tonight There is a marginal risk of severe thunderstorms late this afternoon and evening. Large hail and damaging winds will be the main threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday There is a marginal risk of severe thunderstorms on Friday. Large hail and damaging winds will be the main threats. On Saturday, additional storms are possible but severe storms are not expected. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. && Stay tuned to NOAA weather radio for further updates...or check our web site at weather.gov/rapidcity SDZ013-014-026>032-041>044-046-047-049-072>074-271015- Northern Meade Co Plains-Ziebach-Rapid City-Southern Foot Hills- Central Black Hills-Southern Black Hills-Custer Co Plains- Pennington Co Plains-Haakon-Fall River-Oglala Lakota-Jackson- Bennett-Mellette-Todd-Tripp-Sturgis/Piedmont Foot Hills- Southern Meade Co Plains-Hermosa Foot Hills- 406 AM MDT Thu Aug 26 2021 /506 AM CDT Thu Aug 26 2021/ This Hazardous Weather Outlook is for portions of western South Dakota and northeastern Wyoming. .DAY ONE...Today and Tonight There is a slight risk of severe thunderstorms late this afternoon and evening. Large hail and damaging winds will be the main threats. .DAYS TWO THROUGH SEVEN...Friday through Wednesday Additional thunderstorms are possible both Friday and Saturday. There is a marginal risk of severe storms Friday, mainly over northwest South Dakota, with large hail and damaging winds the main threats. Severe storms are not expected on Saturday. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today. && Stay tuned to NOAA weather radio for further updates...or check our web site at weather.gov/rapidcity
In the hours before
Local storm report, Aug 26, 4:06 PM MDT, 2 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
406 PM MDT THU AUG 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0355 PM HAIL 3 SSW CARLILE 44.44N 104.81W
08/26/2021 M0.88 INCH CROOK WY TRAINED SPOTTER
DIME TO NICKEL HAIL
&&
DYESpecial weather statement, Aug 26, 4:24 PM MDT, 2 hours 30 minutes before
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</html>Special weather statement, Aug 26, 5:12 PM MDT, 1 hour 42 minutes before
Special Weather Statement
National Weather Service Rapid City SD
512 PM MDT Thu Aug 26 2021
SDZ024-025-WYZ057-262345-
Northern Black Hills SD-Northern Foot Hills SD-
Wyoming Black Hills WY-
512 PM MDT Thu Aug 26 2021
...A strong thunderstorm will impact portions of west central
Lawrence and eastern Crook Counties through 545 PM MDT...
At 511 PM MDT, Doppler radar was tracking a strong thunderstorm over
Iron Creek Lake, or 10 miles west of Lead, moving east at 30 mph.
HAZARD...Winds in excess of 30 mph and half inch hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
This strong thunderstorm will be near...
Roughlock Falls and Savoy around 515 PM MDT.
Cheyenne Crossing around 520 PM MDT.
Bridal Veil Falls, Spearfish Canyon and Terry Peak around 525 PM
MDT.
Southeastern Spearfish around 530 PM MDT.
Other locations in the path of this storm include Lead and Central
City.
This includes Interstate 90 in South Dakota between Mile Markers 15
and 16.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 4428 10414 4444 10416 4448 10378 4428 10376
TIME...MOT...LOC 2311Z 259DEG 25KT 4436 10398
MAX HAIL SIZE...0.50 IN
MAX WIND GUST...30 MPH
JCSpecial weather statement, Aug 26, 5:13 PM MDT, 1 hour 41 minutes before
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</html>Local storm report, Aug 26, 5:40 PM MDT, 1 hour 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RAPID CITY SD
540 PM MDT THU AUG 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0529 PM HAIL CHEYENNE CROSSING 44.30N 103.87W
08/26/2021 M1.00 INCH LAWRENCE SD TRAINED SPOTTER
&&
DYELocal storm report, Aug 26, 6:42 PM MDT, 12 minutes before
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</html>The office that day
Everything else NWS Rapid City, SD issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 7:48 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 57 min |
| Aug 26, 8:38 PM MDT | Severe Thunderstorm Warning | UNR | Meade, Pennington | 52 min |
| Aug 26, 9:02 PM MDT | Special Weather Statement | UNR | Pennington | 58 min |
| Aug 26, 9:33 PM MDT | Special Weather Statement | UNR | Haakon, Jackson | 42 min |
| Aug 26, 10:17 PM MDT | Special Weather Statement | UNR | Haakon | 58 min |
| Aug 26, 10:31 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Ziebach | 59 min |
| Aug 27, 12:42 AM MDT | Special Weather Statement | UNR | Tripp | 48 min |
| Aug 27, 1:23 AM MDT | Special Weather Statement | UNR | Haakon | 52 min |
| Aug 27, 2:05 AM MDT | Red Flag Warning | UNR | Custer, Fall River | 16 hr |
| Aug 27, 4:07 PM MDT | Special Weather Statement | UNR | Harding | 38 min |
| Aug 27, 4:27 PM MDT | Severe Thunderstorm Warning | UNR | Butte, Harding | 78 min |
| Aug 27, 5:39 PM MDT | Severe Thunderstorm Warning | UNR | Butte, Meade, Perkins | 96 min |
| Aug 27, 3:27 PM MDT | Special Weather Statement | UNR | Crook | 48 min |
Nearby
Severe Thunderstorm Warnings in South Dakota, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.