Weather alerts in South Dakota, December 2011

20 weather alerts in December 2011, 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 December 2011. Tap one for its archive.

Alerts: 20
Warnings: 2
Watches: 2
Advisories: 16
Busiest day: December 30, 20118 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Dec 2, 3:28 AM CST	Winter Weather Advisory	FSD	Union	45 hr
Dec 3, 4:11 PM CST	Winter Weather Advisory	UNR	Lawrence, Meade, Pennington	32 hr
Dec 3, 4:22 PM CST	Wind Advisory	UNR	Butte, Haakon, Harding, Meade, Pennington, Perkins and 1 more	29 hr
Dec 6, 10:52 AM CST	Wind Advisory	ABR	Grant, Roberts	11 hr
Dec 12, 3:18 PM CST	Dense Fog Advisory	UNR	Butte, Custer, Fall River, Lawrence, Meade, Pennington	13 hr
Dec 13, 9:53 PM CST	Winter Weather Advisory	FSD	Aurora, Brule, Charles Mix, Douglas, Gregory, Jerauld	3 min
Dec 13, 9:56 PM CST	Winter Weather Advisory	FSD	Aurora, Brule, Charles Mix, Douglas, Gregory, Jerauld	9 hr
Dec 14, 5:48 AM CST	Dense Fog Advisory	ABR	Brown, Clark, Codington, Day, Deuel, Edmunds and 7 more	5 hr
Dec 20, 3:46 PM CST	Winter Weather Advisory	UNR	Custer, Fall River, Lawrence, Meade, Pennington	32 hr
Dec 25, 3:09 PM CST	Wind Advisory	ABR	Brown, Campbell, Corson, Day, Deuel, Dewey and 14 more	29 hr
Dec 25, 3:49 PM CST	Wind Advisory	UNR	Butte, Haakon, Harding, Meade, Pennington, Perkins and 1 more	26 hr
Dec 29, 4:17 AM CST	Wind Advisory	UNR	Butte, Harding, Meade, Perkins, Ziebach	24 hr
Dec 29, 9:45 PM CST	Freezing Rain Advisory	ABR	Deuel, Grant, Roberts	5 hr
Dec 30, 3:46 AM CST	High Wind Watch	ABR	Campbell, Corson, Dewey, Edmunds, Faulk, Hand and 8 more	10 hr
Dec 30, 4:39 AM CST	High Wind Watch	UNR	Butte, Custer, Haakon, Harding, Jackson, Lawrence and 5 more	11 hr
Dec 30, 2:09 PM CST	High Wind Warning	ABR	Campbell, Corson, Dewey, Hughes, Jones, Lyman and 4 more	28 hr
Dec 30, 2:09 PM CST	Wind Advisory	ABR	Brown, Buffalo, Campbell, Clark, Codington, Corson and 20 more	52 hr
Dec 30, 3:15 PM CST	Wind Advisory	FSD	Aurora, Beadle, Bon Homme, Brookings, Brule, Charles Mix and 18 more	57 hr
Dec 30, 3:36 PM CST	High Wind Warning	UNR	Butte, Custer, Fall River, Haakon, Harding, Jackson and 6 more	26 hr
Dec 30, 3:36 PM CST	Wind Advisory	UNR	Bennett, Butte, Custer, Haakon, Harding, Jackson and 9 more	45 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Winter
Freezing Rain Advisory	1
Winter Weather Advisory	5
Wind and dust
High Wind Warning	2
High Wind Watch	2
Wind Advisory	8
Fog and smoke
Dense Fog Advisory	2

By county

Every county with at least one alert. A county page lists each alert that covered it.

26 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2010 2012

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. Warning verification from the Mesonet's Cow. Rebuilt daily.