Alert archive / Kansas / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Kansas, 2023
1,347 severe thunderstorm warnings in 2023. 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 2023. Tap one for its archive.
- Severe Thunderstorm Warnings
- 1,347
- Busiest month
- July419 severe thunderstorm warnings
- Busiest day
- May 9, 202370 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.
679 of 1,347 severe thunderstorm warnings covering Kansas in 2023 had a qualifying storm report inside them; 1,476 of 1,773 hail, wind and damage reports fell inside a warning, on average 25 minutes after it went out.
Kansas, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 1,347 | 679 | 50% | 1,773 | 83% | 25 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Springfield, MO: severe thunderstorm warnings | 377 | 237 | 37% | 661 | 86% | 26 min |
| NWS Topeka, KS: severe thunderstorm warnings | 262 | 129 | 51% | 370 | 85% | 22 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 293 | 182 | 38% | 459 | 92% | 22 min |
| NWS Wichita, KS: severe thunderstorm warnings | 255 | 128 | 50% | 378 | 87% | 25 min |
| NWS Denver/Boulder, CO: severe thunderstorm warnings | 467 | 169 | 64% | 521 | 75% | 18 min |
| NWS Goodland, KS: severe thunderstorm warnings | 413 | 191 | 54% | 652 | 78% | 27 min |
| NWS Dodge City, KS: severe thunderstorm warnings | 304 | 131 | 57% | 322 | 81% | 24 min |
| NWS Hastings, NE: severe thunderstorm warnings | 323 | 166 | 49% | 516 | 82% | 23 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
1,347 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.
- Thomas County75
- Cheyenne County58
- Sheridan County58
- Sherman County55
- Rawlins County55
- Decatur County54
- Phillips County51
- Pottawatomie County49
- Logan County49
- Smith County48
- Finney County47
- Wabaunsee County45
- Gray County44
- Norton County44
- Stevens County40
- Marshall County38
- Pawnee County38
- Butler County38
- Shawnee County38
- Riley County38
- Graham County38
- Hamilton County37
- Stanton County37
- Jewell County37
- Greenwood County37
- Lyon County37
- Gove County37
- Jackson County36
- Ford County35
- Meade County35
- Osage County35
- Haskell County34
- Seward County34
- Ness County34
- Nemaha County34
- Grant County33
- Kearny County32
- Kiowa County32
- Washington County31
- Morton County31
65 more counties
- Rush County31
- Doniphan County31
- Wallace County31
- Barber County30
- Pratt County30
- Barton County29
- Stafford County29
- Sumner County28
- Crawford County28
- Cloud County28
- Lane County27
- Hodgeman County27
- Edwards County27
- Cowley County27
- Jefferson County27
- Marion County27
- Douglas County26
- Chase County26
- Republic County26
- Comanche County25
- Reno County25
- Chautauqua County25
- Ellsworth County25
- Osborne County25
- Greeley County25
- Scott County24
- Sedgwick County24
- Wilson County24
- Brown County24
- Ellis County23
- Elk County23
- Leavenworth County23
- Bourbon County23
- Dickinson County23
- Rooks County23
- Atchison County22
- Johnson County22
- Rice County22
- Clay County22
- Geary County22
- Clark County21
- Harvey County21
- Wyandotte County21
- Morris County21
- McPherson County21
- Coffey County21
- Franklin County20
- Neosho County20
- Russell County20
- Wichita County20
- Miami County19
- Lincoln County19
- Montgomery County18
- Cherokee County18
- Ottawa County18
- Trego County17
- Woodson County17
- Saline County17
- Anderson County16
- Allen County16
- Harper County15
- Kingman County15
- Linn County15
- Mitchell County14
- Labette County13
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.