Alert archive / Kansas / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Kansas, 2019
1,606 severe thunderstorm warnings in 2019. 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 2019. Tap one for its archive.
- Severe Thunderstorm Warnings
- 1,606
- Busiest month
- May492 severe thunderstorm warnings
- Busiest day
- May 7, 201968 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.
774 of 1,606 severe thunderstorm warnings covering Kansas in 2019 had a qualifying storm report inside them; 1,512 of 1,816 hail, wind and damage reports fell inside a warning, on average 26 minutes after it went out.
Kansas, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 1,606 | 774 | 52% | 1,816 | 83% | 26 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Springfield, MO: severe thunderstorm warnings | 382 | 212 | 45% | 582 | 82% | 23 min |
| NWS Wichita, KS: severe thunderstorm warnings | 393 | 212 | 46% | 609 | 86% | 28 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 312 | 135 | 57% | 291 | 85% | 20 min |
| NWS Hastings, NE: severe thunderstorm warnings | 364 | 156 | 57% | 459 | 83% | 21 min |
| NWS Goodland, KS: severe thunderstorm warnings | 334 | 156 | 53% | 456 | 71% | 26 min |
| NWS Dodge City, KS: severe thunderstorm warnings | 373 | 184 | 51% | 368 | 81% | 25 min |
| NWS Topeka, KS: severe thunderstorm warnings | 330 | 145 | 56% | 363 | 85% | 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
1,606 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.
- Sedgwick County70
- Butler County61
- Logan County60
- Thomas County58
- Riley County57
- Pottawatomie County57
- Sherman County57
- Wabaunsee County56
- Wallace County52
- McPherson County51
- Ellsworth County51
- Rice County51
- Rawlins County51
- Sumner County50
- Ellis County50
- Osage County49
- Reno County49
- Finney County48
- Sheridan County47
- Pawnee County47
- Hodgeman County47
- Ford County47
- Geary County46
- Trego County46
- Jewell County45
- Smith County45
- Barton County45
- Edwards County45
- Harvey County45
- Morris County44
- Washington County44
- Franklin County43
- Ness County43
- Marion County42
- Cowley County42
- Shawnee County42
- Anderson County42
- Rush County42
- Clay County42
- Republic County41
65 more counties
- Greenwood County41
- Gray County41
- Meade County41
- Dickinson County40
- Marshall County40
- Jackson County40
- Lyon County40
- Pratt County40
- Barber County40
- Osborne County39
- Cloud County39
- Clark County38
- Nemaha County37
- Coffey County37
- Gove County37
- Kingman County37
- Comanche County37
- Crawford County36
- Cheyenne County36
- Mitchell County35
- Kearny County35
- Kiowa County35
- Russell County34
- Decatur County34
- Saline County34
- Phillips County32
- Rooks County32
- Hamilton County32
- Cherokee County31
- Chase County31
- Graham County31
- Bourbon County31
- Doniphan County30
- Douglas County29
- Ottawa County29
- Johnson County29
- Miami County29
- Stafford County29
- Neosho County29
- Jefferson County29
- Seward County27
- Labette County26
- Lane County26
- Linn County25
- Wilson County25
- Greeley County25
- Leavenworth County25
- Grant County25
- Haskell County25
- Elk County24
- Scott County24
- Wyandotte County23
- Lincoln County23
- Stevens County23
- Brown County23
- Atchison County22
- Montgomery County22
- Stanton County22
- Harper County21
- Norton County20
- Wichita County20
- Allen County20
- Morton County19
- Woodson County18
- Chautauqua County16
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.