Weather alerts in Iowa, 2010
2,776 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 2,776
- Warnings
- 1,699
- Watches
- 244
- Advisories
- 415
- Busiest month
- June848 alerts
- Busiest day
- June 23, 2010117 alerts
Over time
By month
The alerts
2,776 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.
- Lee County281
- Polk County258
- Johnson County250
- Des Moines County248
- Louisa County246
- Marion County241
- Warren County231
- Henry County229
- Washington County229
- Dallas County226
- Wayne County224
- Van Buren County223
- Appanoose County223
- Mahaska County222
- Lucas County220
- Wapello County220
- Linn County219
- Webster County218
- Pottawattamie County217
- Muscatine County215
- Scott County215
- Clay County214
- Madison County212
- Jasper County210
- Fremont County210
- Iowa County206
- Keokuk County206
- Guthrie County206
- Jefferson County204
- Greene County204
- Humboldt County203
- Decatur County203
- Delaware County202
- Clinton County201
- O'Brien County200
- Pocahontas County200
- Wright County200
- Clarke County199
- Monroe County198
- Mills County198
59 more counties
- Benton County197
- Hamilton County197
- Boone County197
- Buchanan County196
- Dubuque County196
- Cherokee County194
- Jackson County194
- Kossuth County194
- Palo Alto County194
- Story County194
- Sioux County192
- Buena Vista County191
- Jones County191
- Calhoun County190
- Adair County188
- Cedar County187
- Carroll County187
- Davis County186
- Ringgold County185
- Plymouth County184
- Poweshiek County183
- Cass County182
- Union County182
- Marshall County181
- Taylor County181
- Butler County180
- Franklin County179
- Audubon County179
- Black Hawk County178
- Sac County178
- Tama County178
- Emmet County176
- Hancock County176
- Lyon County172
- Monona County172
- Crawford County171
- Dickinson County170
- Cerro Gordo County170
- Harrison County170
- Montgomery County170
- Page County168
- Adams County166
- Shelby County165
- Woodbury County164
- Grundy County163
- Winnebago County163
- Ida County161
- Osceola County161
- Bremer County161
- Hardin County161
- Worth County158
- Clayton County150
- Fayette County147
- Howard County138
- Mitchell County137
- Floyd County135
- Chickasaw County133
- Winneshiek County133
- Allamakee County126
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20092011
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.