Snow Advisories in Iowa
106 snow advisories since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of snow advisories reaches back to 2005.
Snow Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Snow Advisories
- 106
- Busiest year
- 200745 snow advisories
- Average year
- 27over 4 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Dickinson County20
- Lyon County19
- O'Brien County19
- Osceola County19
- Clay County18
- Sioux County18
- Plymouth County16
- Buchanan County15
- Emmet County15
- Iowa County15
- Johnson County15
- Kossuth County15
- Palo Alto County15
- Black Hawk County14
- Calhoun County14
- Cedar County14
- Cherokee County14
- Clinton County14
- Delaware County14
- Dubuque County14
- Jackson County14
- Linn County14
- Scott County14
- Winnebago County14
- Benton County13
- Bremer County13
- Buena Vista County13
- Butler County13
- Clayton County13
- Davis County13
- Fremont County13
- Hancock County13
- Humboldt County13
- Ida County13
- Jones County13
- Mahaska County13
- Marion County13
- Marshall County13
- Monona County13
- Monroe County13
59 more counties
- Montgomery County13
- Muscatine County13
- Page County13
- Pocahontas County13
- Sac County13
- Wapello County13
- Warren County13
- Webster County13
- Woodbury County13
- Worth County13
- Appanoose County12
- Carroll County12
- Cerro Gordo County12
- Crawford County12
- Fayette County12
- Franklin County12
- Greene County12
- Grundy County12
- Hardin County12
- Jasper County12
- Madison County12
- Mills County12
- Pottawattamie County12
- Poweshiek County12
- Shelby County12
- Tama County12
- Wright County12
- Allamakee County12
- Adair County11
- Adams County11
- Audubon County11
- Boone County11
- Cass County11
- Decatur County11
- Guthrie County11
- Hamilton County11
- Keokuk County11
- Lucas County11
- Polk County11
- Story County11
- Wayne County11
- Winneshiek County11
- Clarke County10
- Dallas County10
- Harrison County10
- Jefferson County10
- Ringgold County10
- Taylor County10
- Union County10
- Van Buren County10
- Washington County10
- Howard County10
- Des Moines County9
- Henry County9
- Louisa County9
- Mitchell County9
- Lee County8
- Chickasaw County8
- Floyd County8
Nearby
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.