Alert archive / Missouri / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Missouri, 2024
1,223 severe thunderstorm warnings in 2024. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Severe Thunderstorm Warnings
- 1,223
- Busiest month
- May378 severe thunderstorm warnings
- Busiest day
- March 14, 2024100 severe thunderstorm warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
674 of 1,223 severe thunderstorm warnings covering Missouri in 2024 had a qualifying storm report inside them; 1,987 of 2,472 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.
Missouri, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 1,223 | 674 | 45% | 2,472 | 80% | 23 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Memphis, TN: severe thunderstorm warnings | 210 | 127 | 40% | 258 | 91% | 20 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 425 | 299 | 30% | 1,290 | 91% | 21 min |
| NWS Quad Cities, IA: severe thunderstorm warnings | 364 | 205 | 44% | 646 | 82% | 25 min |
| NWS St. Louis, MO: severe thunderstorm warnings | 378 | 178 | 53% | 985 | 64% | 24 min |
| NWS Paducah, KY: severe thunderstorm warnings | 329 | 127 | 61% | 423 | 77% | 22 min |
| NWS Omaha, NE: severe thunderstorm warnings | 415 | 171 | 59% | 586 | 84% | 25 min |
| NWS Springfield, MO: severe thunderstorm warnings | 417 | 190 | 54% | 708 | 86% | 24 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
1,223 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 county
Every county with at least one alert. A county page lists each alert that covered it.
- Platte County65
- Ray County57
- Clay County56
- Clinton County56
- Douglas County53
- Jackson County52
- Johnson County50
- Lafayette County50
- Christian County48
- Texas County48
- Cass County48
- Buchanan County46
- Clark County45
- Carroll County45
- Dallas County45
- Polk County44
- Webster County43
- Camden County42
- Nodaway County42
- Laclede County42
- Pulaski County41
- Caldwell County40
- Saint Charles County40
- Greene County39
- Franklin County39
- Vernon County38
- Chariton County38
- Saint Louis County38
- Wright County37
- Scotland County37
- Jefferson County37
- Sullivan County36
- Barton County35
- Cedar County35
- Henry County35
- Holt County35
- Macon County35
- Adair County35
- Linn County34
- Livingston County33
75 more counties
- Bates County32
- Phelps County31
- Dade County31
- Barry County30
- Saline County30
- Miller County30
- Putnam County30
- Lawrence County29
- Andrew County29
- DeKalb County29
- Atchison County28
- Grundy County28
- Taney County27
- Pettis County27
- Newton County27
- Benton County27
- Saint Francois County27
- Warren County27
- Dent County27
- Gentry County27
- Cape Girardeau County26
- Daviess County26
- Iron County26
- McDonald County25
- Stone County25
- Ozark County25
- Osage County25
- Lincoln County25
- St. Clair County25
- Hickory County25
- Harrison County25
- Bollinger County24
- Morgan County24
- Jasper County23
- Washington County23
- Callaway County23
- Schuyler County23
- Howell County23
- Mercer County23
- Sainte Genevieve County22
- Lewis County22
- Gasconade County22
- Shannon County22
- Perry County21
- Knox County21
- Stoddard County20
- City of Saint Louis20
- Montgomery County20
- Wayne County19
- Maries County19
- Scott County18
- Shelby County18
- Madison County18
- Worth County18
- Cooper County17
- Boone County17
- Cole County17
- Randolph County17
- Monroe County17
- Crawford County17
- Reynolds County17
- Mississippi County17
- Dunklin County16
- Butler County15
- Howard County15
- Moniteau County14
- Pike County14
- Audrain County13
- New Madrid County13
- Pemiscot County12
- Ripley County11
- Marion County10
- Oregon County10
- Ralls County8
- Carter County8
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.