Alert archive / Kansas / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 321, NWS Wichita, KS
NWS Wichita, KS issued this severe thunderstorm warning at Jun 21, 2026, 1:42 AM CDT for Harper County, Kingman County, Sumner County, Kansas. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 21, 2026, 1:42 AM CDT (06:42 UTC)
- Expired
- Jun 21, 2026, 2:31 AM CDT
- In force
- 49 min
- Issued by
- NWS Wichita, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Harper County, KS, Kingman County, KS, Sumner County, KS
The radar
The Vance AFB radar (KVNX), 57 km from the middle of the area, began a volume at 06:43 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 20, 9:59 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 6.7 hours before the alert went out and 165 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1502 J/kg
- Mixed-layer CIN
- -177 J/kg
- Mixed-layer LCL
- 1559 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 335 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 5.5
The text
As transmitted.
861
WUUS53 KICT 210642
SVRICT
KSC077-095-191-210745-
/O.NEW.KICT.SV.W.0321.260621T0642Z-260621T0745Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wichita KS
142 AM CDT Sun Jun 21 2026
The National Weather Service in Wichita has issued a
* Severe Thunderstorm Warning for...
Harper County in south central Kansas...
Southern Kingman County in south central Kansas...
Southwestern Sumner County in south central Kansas...
* Until 245 AM CDT.
* At 142 AM CDT, a severe thunderstorm was located near Attica,
moving east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Anthony, Harper, Attica, Argonia, Zenda, Milan, Spivey, Bluff City,
Danville, Freeport, Runnymede, and Crystal Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail, damaging wind, and continuous cloud to ground lightning
are occurring with this storm. Move indoors immediately. Lightning is
one of nature's leading killers. Remember, if you can hear thunder,
you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3713 9835 3738 9835 3738 9836 3739 9836
3747 9832 3736 9759 3700 9775 3700 9793
TIME...MOT...LOC 0642Z 288DEG 33KT 3731 9824
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
WI2 follow-up statements
794
WWUS53 KICT 210705
SVSICT
Severe Weather Statement
National Weather Service Wichita KS
205 AM CDT Sun Jun 21 2026
KSC077-095-191-210745-
/O.CON.KICT.SV.W.0321.000000T0000Z-260621T0745Z/
Harper KS-Kingman KS-Sumner KS-
205 AM CDT Sun Jun 21 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR HARPER...SOUTHEASTERN KINGMAN AND SOUTHWESTERN SUMNER COUNTIES...
At 204 AM CDT, a severe thunderstorm was located near Harper, moving
east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Anthony, Harper, Argonia, Milan, Bluff City, Danville, Freeport,
Runnymede, and Crystal Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3718 9820 3736 9822 3744 9814 3736 9759
3700 9775 3700 9793 3707 9817
TIME...MOT...LOC 0704Z 288DEG 33KT 3725 9799
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
WI344
WWUS53 KICT 210731
SVSICT
Severe Weather Statement
National Weather Service Wichita KS
231 AM CDT Sun Jun 21 2026
KSC077-095-191-210741-
/O.CAN.KICT.SV.W.0321.000000T0000Z-260621T0745Z/
Harper KS-Kingman KS-Sumner KS-
231 AM CDT Sun Jun 21 2026
...THE SEVERE THUNDERSTORM WARNING FOR HARPER...SOUTHEASTERN KINGMAN
AND SOUTHWESTERN SUMNER COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.
A Severe Thunderstorm Watch remains in effect until 400 AM CDT for
south central Kansas.
&&
LAT...LON 3718 9820 3736 9822 3744 9814 3736 9759
3700 9775 3700 9793 3707 9817
TIME...MOT...LOC 0727Z 288DEG 33KT 3717 9769
$$
WIWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Wichita, KS wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 12:30 AM CDT, 1 hour 12 minutes earlier. Its key messages:
- Numerous storms expected this evening through Sunday morning with severe storms and flooding likely.
- Additional round of storms likely late Sunday afternoon into Sunday night mainly in southeast and southern KS with severe storms and flooding possible.
- Below normal high temperatures are forecast for much of next week with highs in the 80s and periodic rain chances possible.
Area forecast discussion, Jun 21, 12:30 AM CDT, 1 hour 12 minutes before
Area Forecast Discussion National Weather Service Wichita KS 1230 AM CDT Sun Jun 21 2026 .KEY MESSAGES... - Numerous storms expected this evening through Sunday morning with severe storms and flooding likely. - Additional round of storms likely late Sunday afternoon into Sunday night mainly in southeast and southern KS with severe storms and flooding possible. - Below normal high temperatures are forecast for much of next week with highs in the 80s and periodic rain chances possible. && .DISCUSSION... Issued at 224 PM CDT Sat Jun 20 2026 An upper shortwave trough is tracking east across the Central Great Basin towards the Central Rockies with lee troughing strengthening over much of the Rockies. A surface low is in eastern Colorado with a warm front extending across northern Kansas. There are ongoing showers and storms in central Nebraska due to 850-700mb warm moist advection. This activity is moving southeast making it possible to clip our central counties late this afternoon. Another round of storms is expected to develop this afternoon in eastern Colorado and eastern Wyoming from upslope flow and convergence, resulting in another round of storms impacting our area. These storms are anticipated to move into western Nebraska and western Kansas and grow upscale as the upper shortwave continues to move into the Central Rockies. This round of storms would likely impact central KS after about 9 PM. There is still uncertainty with how far south and east this MCS tracks with some guidance suggesting another MCS diving southeast out of Nebraska through much of our area in the late overnight hours into Sunday morning. The main threats continue to be damaging winds with gusts up to 60-80 mph and potentially flooding concerns. Heavy rainfall is likely given the moist airmass with PWATs approaching maximum values for this time of year, increasing the potential for high rainfall rates; however, if this system remains progressive, it could reduce some widespread flooding. A brief tornado and hail threat cannot be ruled out especially this evening if storms develop out ahead of the MCS but the main concern is damaging winds. By Sunday morning, activity is expected to have shifted to eastern KS with storms progged to continue moving east into Missouri by mid morning, though chances may linger in southeast KS from low-level WAA. A lull in storms is forecast for late Sunday morning through the early afternoon before another round of storms is possible late Sunday afternoon. There is some question as to where the outflow boundary from overnight/Sunday morning convection will end up. Model guidance suggests a boundary across southeast KS with convergence along it, resulting in additional storm development mainly in southeast and parts of southern KS. Assuming this is where the boundary sets up, plenty of instability and wind shear are anticipated making any storm that develops having the potential to be severe with the primary hazards being damaging winds and large hail. Storm chances will start to diminish Sunday night as storms move south and east of the area. Additionally, its possible for some of our southern most counties to approach Heat Advisory criteria if this is where the boundary sets up, though given uncertainty at this time decided not to issue one, though later forecast shifts can reevaluate. Continuing into next week, most of Monday looks to remain dry as the front will be south of our area. Periodic rain chances look possible for much of the week as the upper air pattern remains relatively active as multiple shortwave troughs are progged to move across the region. A shortwave trough is expected to move into the Northern Plains late Monday night into Tuesday morning. Its possible for rain chances to clip parts of our area but better chances remain out of our area. Flow aloft transitions to westerly/northwesterly over the Plains as ridging builds into the western CONUS with embedded shortwaves anticipated to ride the ridging. This will keep periodic shower and storm chances possible through much of the week with higher chances likely in the evenings into the overnight hours. For temperatures, highs are forecast to be in the low to mid 80s through much of the work week which is about 5-10 degrees below normal for this time of year. && .AVIATION /06Z TAFS THROUGH 06Z MONDAY/... Issued at 1226 AM CDT Sun Jun 21 2026 A line of thunderstorms is currently traversing the forecast area bringing heavy rain and strong winds to the area. HUT and ICT will see these impacts to start the TAF period. Additional thunderstorms are expected overnight with the main impacts being reduced vis, low cigs, and occasionally breezy winds. Storms will shift out of the area and cigs will lift to VFR levels generally after 12-15Z. Additional storms are possible for south-central and southeastern Kansas towards the end of the forecast time frame, but confidence remains low on exact location as it will depend on where boundaries linger following overnight storm activity. && .ICT WATCHES/WARNINGS/ADVISORIES... Flood Watch through this afternoon for KSZ033-048-049-051>053. Flood Watch through this evening for KSZ070>072. && DISCUSSION...GC AVIATION...ADK/AMD
Hazardous weather outlook, Jun 20, 2:27 PM CDT, 11 hours 15 minutes before
Hazardous Weather Outlook National Weather Service Wichita KS 227 PM CDT Sat Jun 20 2026 KSZ032-033-047>053-067>072-082-083-091>096-098>100-211930- Russell-Lincoln-Barton-Ellsworth-Saline-Rice-McPherson-Marion-Chase- Reno-Harvey-Butler-Greenwood-Woodson-Allen-Kingman-Sedgwick-Harper- Sumner-Cowley-Elk-Wilson-Neosho-Chautauqua-Montgomery-Labette- 227 PM CDT Sat Jun 20 2026 This hazardous weather outlook is for portions of central Kansas, east central Kansas, south central Kansas and southeast Kansas. .DAY ONE...Tonight A complex of storms is expected to track out of northwest Kansas and southern Nebraska tonight into early Sunday morning, affecting much of the area. 60 to 80 mph winds, ping pong ball size hail, heavy rain and some flooding concerns will be possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday Storms will linger Sunday morning across eastern Kansas with damaging winds and flooding possible. Additional storms are expected to develop Sunday afternoon and evening, especially across southern Kansas. Large hail, damaging downburst winds and flooding will be possible with the stronger storms. Periodic storm chances will remain for Tuesday through Friday with strong and severe storms possible. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated this afternoon or tonight. && For a graphical version of this information, see our webpage at: https://www.weather.gov/erh/ghwo?wfo=ict
In the hours before
Local storm report, Jun 21, 12:38 AM CDT, 1 hour 4 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
1238 AM CDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1232 AM Flood Russell 38.89N 98.86W
06/21/2026 Russell KS Emergency Mngr
Street flooding with some cars stalled. A
few residence basements flooding.
&&Local storm report, Jun 21, 12:52 AM CDT, 50 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
1252 AM CDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1246 AM Tstm Wnd Gst 2 NNW Andale 37.82N 97.64W
06/21/2026 M65 MPH Sedgwick KS Mesonet
&&Local storm report, Jun 21, 12:56 AM CDT, 46 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
1256 AM CDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1236 AM Tstm Wnd Gst 2 N Mt Vernon 37.74N 97.85W
06/21/2026 E60 MPH Reno KS Public
Est. 50 to 60 mph winds. Report from social
media. Time estimated from radar.
&&Local storm report, Jun 21, 1:15 AM CDT, 27 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
115 AM CDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1258 AM Tstm Wnd Gst Maize 37.78N 97.47W
06/21/2026 E70 MPH Sedgwick KS Trained Spotter
Est gusts 65 to 70 mph.
&&Local storm report, Jun 21, 1:16 AM CDT, 26 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
116 AM CDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0113 AM Tstm Wnd Gst 1 NW East Wichita 37.70N 97.27W
06/21/2026 E70 MPH Sedgwick KS Trained Spotter
70 mph winds along with a few tree branches
down.
&&Local storm report, Jun 21, 1:31 AM CDT, 11 minutes before
Preliminary Local Storm Report
National Weather Service Wichita KS
131 AM CDT Sun Jun 21 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0114 AM Tstm Wnd Gst 1 NNW Moundridge 38.22N 97.52W
06/21/2026 M68 MPH McPherson KS Mesonet
&&The office that day
Everything else NWS Wichita, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 20, 10:35 PM CDT | Severe Thunderstorm Warning | ICT | Barton, Ellsworth, Lincoln, Russell | 70 min |
| Jun 20, 11:23 PM CDT | Areal Flood Warning | ICT | Russell | 9 hr |
| Jun 20, 11:32 PM CDT | Severe Thunderstorm Warning | ICT | Barton, Kingman, McPherson, Reno, Rice | 73 min |
| Jun 20, 11:42 PM CDT | Severe Thunderstorm Warning | ICT | Barton, Ellsworth, Lincoln, Russell | 78 min |
| Jun 21, 12:32 AM CDT | Severe Thunderstorm Warning | ICT | Harper, Harvey, Kingman, Reno, Sedgwick, Sumner | 73 min |
| Jun 21, 12:38 AM CDT | Severe Thunderstorm Warning | ICT | Ellsworth, Lincoln, McPherson, Marion, Rice, Russell and 1 more | 82 min |
| Jun 21, 12:40 AM CDT | Severe Thunderstorm Warning | ICT | Harvey, Reno, Sedgwick | 35 min |
| Jun 21, 1:09 AM CDT | Areal Flood Warning | ICT | Butler, Sedgwick, Sumner | 9 hr |
| Jun 21, 1:16 AM CDT | Severe Thunderstorm Warning | ICT | Butler, Chase, Elk, Greenwood, Sedgwick | 59 min |
| Jun 21, 2:01 AM CDT | River Flood Warning | ICT | Lincoln | 19 hr |
| Jun 21, 2:01 AM CDT | River Flood Warning | ICT | Lincoln | 9 hr |
| Jun 21, 3:02 AM CDT | Areal Flood Warning | ICT | Barton, Ellsworth, Rice, Russell | 4 hr |
| Jun 21, 3:16 AM CDT | River Flood Warning | ICT | Kingman | 64 hr |
| Jun 21, 3:16 AM CDT | River Flood Warning | ICT | Sedgwick, Sumner | 55 hr |
| Jun 21, 3:16 AM CDT | River Flood Warning | ICT | Sumner | 65 hr |
| Jun 21, 3:16 AM CDT | River Flood Warning | ICT | Cowley | 4 days |
| Jun 21, 3:50 AM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Cowley | 40 min |
| Jun 21, 4:27 AM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Elk, Montgomery, Wilson | 31 min |
| Jun 21, 4:36 AM CDT | Severe Thunderstorm Warning | ICT | Butler, Cowley, Sedgwick, Sumner | 39 min |
| Jun 21, 5:12 AM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Cowley | 63 min |
| Jun 21, 5:17 AM CDT | Areal Flood Warning | ICT | Butler, Cowley, Kingman, Reno, Rice, Sedgwick and 1 more | 5 hr |
| Jun 21, 7:53 AM CDT | River Flood Warning | ICT | Cowley, Sumner | 48 hr |
| Jun 21, 8:35 AM CDT | River Flood Warning | ICT | Sumner | 50 hr |
| Jun 21, 8:45 AM CDT | River Flood Warning | ICT | Cowley | 24 hr |
| Jun 21, 8:45 AM CDT | River Flood Warning | ICT | Butler, Cowley | 40 hr |
| Jun 21, 8:46 AM CDT | Areal Flood Warning | ICT | Russell | 12 hr |
| Jun 21, 8:51 AM CDT | River Flood Warning | ICT | Sumner | 59 hr |
| Jun 21, 9:17 AM CDT | River Flood Warning | ICT | Labette, Neosho | 3 days |
| Jun 21, 9:17 AM CDT | River Flood Warning | ICT | Neosho | 24 hr |
| Jun 21, 9:17 AM CDT | River Flood Warning | ICT | Cherokee, Labette | 50 hr |
| Jun 21, 9:17 AM CDT | River Flood Warning | ICT | Allen, Neosho | 40 hr |
| Jun 21, 9:21 AM CDT | River Flood Warning | ICT | Wilson | 28 hr |
| Jun 21, 9:21 AM CDT | River Flood Warning | ICT | Montgomery, Wilson | 23 hr |
| Jun 21, 9:25 AM CDT | River Flood Warning | ICT | Wilson | 42 hr |
| Jun 21, 9:59 AM CDT | Areal Flood Warning | ICT | Butler, Cowley, Harper, Kingman, Reno, Sedgwick and 1 more | 11 hr |
| Jun 21, 4:53 PM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Elk, Montgomery, Wilson | 41 min |
| Jun 21, 5:01 PM CDT | Tornado Warning | ICT | Chautauqua, Montgomery | 23 min |
| Jun 21, 5:44 PM CDT | Severe Thunderstorm Warning | ICT | Montgomery | 61 min |
| Jun 21, 6:08 PM CDT | Areal Flood Warning | ICT | Montgomery | 4 hr |
| Jun 21, 6:14 PM CDT | Severe Thunderstorm Warning | ICT | Labette, Montgomery | 61 min |
Nearby
Severe Thunderstorm Warnings in Kansas, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.