Weather alerts in South Dakota, 2021
1,573 weather alerts in 2021, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Alerts
- 1,573
- Warnings
- 650
- Watches
- 107
- Advisories
- 212
- Busiest month
- August404 alerts
- Busiest day
- August 28, 202169 alerts
Over time
By month
The alerts
1,573 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pennington County242
- Meade County229
- Custer County219
- Lawrence County167
- Fall River County158
- Oglala Lakota County153
- Perkins County151
- Corson County149
- Jackson County149
- Dewey County146
- Butte County145
- Haakon County142
- Brown County140
- Bennett County132
- Ziebach County132
- Todd County129
- Jones County128
- Walworth County125
- Edmunds County121
- Roberts County121
- Lyman County120
- Campbell County118
- Day County117
- Mellette County117
- Spink County112
- Lincoln County112
- Marshall County111
- Stanley County111
- McPherson County110
- Minnehaha County107
- Turner County105
- Potter County105
- Codington County104
- Tripp County104
- Faulk County103
- Hughes County103
- Grant County100
- Sully County99
- Clark County97
- Union County97
26 more counties
- Davison County95
- Hutchinson County95
- Harding County95
- Deuel County94
- Clay County94
- Lake County94
- Yankton County94
- Aurora County94
- Moody County93
- Hamlin County92
- Brookings County92
- Sanborn County91
- Beadle County90
- McCook County90
- Miner County90
- Brule County89
- Hand County88
- Charles Mix County88
- Kingsbury County87
- Jerauld County87
- Hanson County86
- Buffalo County83
- Bon Homme County82
- Hyde County82
- Gregory County81
- Douglas County81
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.