Excessive Heat Warnings in Missouri
185 excessive heat warnings 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 excessive heat warnings reaches back to 2005.
Excessive Heat Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Excessive Heat Warnings
- 185
- Busiest year
- 202321 excessive heat warnings
- Average year
- 10over 18 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.
- Dunklin County44
- Pemiscot County42
- Clay County37
- Jackson County37
- Platte County37
- Barton County33
- Jasper County33
- Vernon County32
- Bates County31
- Cass County30
- Newton County30
- Saint Louis County29
- City of Saint Louis29
- Henry County28
- Saint Charles County28
- Cedar County27
- Johnson County27
- Jefferson County25
- Lafayette County25
- McDonald County25
- Pettis County25
- Dade County23
- Saline County23
- Buchanan County22
- Cooper County22
- Howard County22
- Ray County22
- St. Clair County22
- Benton County21
- Carroll County21
- Clinton County21
- Hickory County21
- Perry County21
- Caldwell County20
- Camden County20
- Morgan County20
- Bollinger County20
- Butler County20
- Cape Girardeau County20
- Andrew County19
75 more counties
- Holt County19
- Polk County19
- Randolph County19
- Sainte Genevieve County19
- Mississippi County19
- New Madrid County19
- Scott County19
- Stoddard County19
- Chariton County18
- DeKalb County18
- Linn County18
- Livingston County18
- Carter County18
- Ripley County18
- Wayne County18
- Adair County17
- Atchison County17
- Daviess County17
- Gentry County17
- Grundy County17
- Harrison County17
- Macon County17
- Mercer County17
- Miller County17
- Nodaway County17
- Putnam County17
- Schuyler County17
- Sullivan County17
- Worth County17
- Boone County16
- Callaway County16
- Cole County16
- Dallas County16
- Franklin County16
- Gasconade County16
- Lawrence County16
- Lincoln County16
- Maries County16
- Moniteau County16
- Montgomery County16
- Osage County16
- Saint Francois County16
- Warren County16
- Clark County16
- Scotland County16
- Barry County15
- Crawford County15
- Phelps County15
- Pulaski County15
- Washington County15
- Laclede County14
- Madison County14
- Pike County14
- Audrain County12
- Dent County12
- Iron County12
- Knox County12
- Lewis County12
- Marion County12
- Ozark County12
- Ralls County12
- Reynolds County12
- Shelby County12
- Stone County12
- Taney County12
- Christian County11
- Douglas County11
- Greene County11
- Howell County11
- Monroe County11
- Oregon County11
- Texas County11
- Webster County11
- Wright County11
- Shannon County10
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.