Alert archive / Kansas / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 403, NWS Wichita, KS
NWS Wichita, KS issued this severe thunderstorm warning at Sep 9, 2026, 4:38 PM CDT for Sumner County, Kansas. It was in force for 25 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 9, 2026, 4:38 PM CDT (21:38 UTC)
- Expired
- Sep 9, 2026, 5:03 PM CDT
- In force
- 25 min
- Issued by
- NWS Wichita, KS
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Sumner County, KS
The radar
The Wichita radar (KICT), 47 km from the middle of the area, began a volume at 21:39 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.
The nearest sounding before it
Topeka, KS (KTOP), launched 12:00Z, 9.6 hours before the alert went out and 253 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
- 40 J/kg
- Mixed-layer CIN
- -298 J/kg
- Mixed-layer LCL
- 1673 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 72 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What 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 Sep 9, 3:22 PM CDT, 1 hour 16 minutes earlier. Its key messages:
- Storms this evening and overnight, with main threat brief microburst winds and isolated heavy rain.
- For the first time since back in mid/late July, much of the area will see highs in the 80s on Thursday! However, "cool- down" will be short-lived as we get back into the upper 90s to around 100 for Sunday and Monday.
- Periodic storm chances for Friday night through next week, with the highest chances Monday night into Tuesday as another cold front moves through.
Area forecast discussion, Sep 9, 3:22 PM CDT, 1 hour 16 minutes before
Area Forecast Discussion National Weather Service Wichita KS 322 PM CDT Wed Sep 9 2026 .KEY MESSAGES... - Storms this evening and overnight, with main threat brief microburst winds and isolated heavy rain. - For the first time since back in mid/late July, much of the area will see highs in the 80s on Thursday! However, "cool- down" will be short-lived as we get back into the upper 90s to around 100 for Sunday and Monday. - Periodic storm chances for Friday night through next week, with the highest chances Monday night into Tuesday as another cold front moves through. && .DISCUSSION... Issued at 322 PM CDT Wed Sep 9 2026 Currently have a shortwave trough tracking across southern Ontario with another impulse tracking out of the Northern Rockies. Cold front currently stretches from Central MO, to along Highway 50 in central KS and into southwest KS. Surface based storms have started to increase in coverage over the last couple of hours along the front and along outflow produced from previous storms over mainly south central KS. This trend is expected to continue as we head through the late afternoon and early evening hours, with areas south of Highway 50 seeing the better coverage. An isolated downburst to 60 mph will be possible with the stronger storms. We may see a break after this initial activity slowly weakens and pushes south this evening. We are then looking for a jet max to sink south tonight placing much of the area in the right entrance region. In addition, there has been some model consistency in swinging through a weak mid level trough tonight. This should allow convection to expand, especially after 06z. While widespread severe storms are not anticipated, some small hail, 50-60 mph winds and brief heavy rain will be possible. Storms should be ongoing across southern KS Thursday morning as mid level trough continues to slowly slide east. However, by the afternoon hours, precip is expected to be south and east of the forecast area. For the first time since back on July 23rd, we are looking for highs in the 80s on Thursday! For Thu night into Fri, upper troughing will start to dig from the Pacific Northwest into the Northern Rockies. This will quickly get the Plains back into return flow and allow above normal temps to quickly return, with widespread low 90s likely for Fri. Still looking for storms to develop along a cold front to our north on Friday evening. There are still a couple model solutions tracking this convection through parts of our forecast area Fri night into Sat morning. However, confidence is low as it will be highly dependent on where storms initially develop along the front. A much more robust upper low will move into the Pacific Northwest late Sat night into Sun morning. This will allow low level jet to ramp-up Sat night and may bring some additional storm chances into Sun morning. Bad news is that confidence is increasing in above normal temps for Sun into Mon with mid to upper 90s likely. Based on 850mb temps and 1000-850mb partial thicknesses, don't think it's out of the question that some sites could hit 100 on Sun-Mon. There is good agreement between the GFS and ECMWF in a strong cold front moving through Mon evening through Tue with high storm chances expected along it. && .AVIATION /18Z TAFS THROUGH 18Z THURSDAY/... Issued at 1245 PM CDT Wed Sep 9 2026 Scattered to at times numerous showers and thunderstorms will impact portions of central, south-central, and southeast Kansas this afternoon through tonight, in vicinity of a slow moving cold front. While widespread severe weather is not expected, a few of the stronger storms may be capable of localized 50+ kt downburst winds and heavy rain. Covered this threat mainly with PROB30 groups for now, although later shifts will likely need to insert TEMPO groups. && .ICT WATCHES/WARNINGS/ADVISORIES... Heat Advisory until 8 PM CDT this evening for KSZ069>072-082- 083-091>096-098>100. && DISCUSSION...RBL AVIATION...ADK CLIMATE...JC
Hazardous weather outlook, Sep 9, 3:30 PM CDT, 1 hour 8 minutes before
Hazardous Weather Outlook National Weather Service Wichita KS 330 PM CDT Wed Sep 9 2026 KSZ032-033-047>053-067>072-082-083-091>096-098>100-101315- 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- 330 PM CDT Wed Sep 9 2026 This hazardous weather outlook is for portions of central Kansas, east central Kansas, south central Kansas and southeast Kansas. .DAY ONE...Tonight Heat indices between 105 and 109 are likely into the early evening hours across far southern and southeast Kansas. Scattered to numerous storms are expected this evening through tonight across the region, with the most widespread activity generally along and south of Highway 56. A few strong to marginally severe thunderstorms are possible, with localized downbursts causing wind gusts up to 65 mph and small hail. Additionally, pockets of heavy rainfall may cause localized flooding. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Showers and storms may linger until late Thursday morning or early Thursday afternoon across south-central and southeast Kansas. Scattered storm chances will return for Friday night and continue through Tuesday. A few strong to marginally severe thunderstorms will be possible along with heavy rainfall and localized flooding. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. However, we would appreciate any reports of severe weather or flooding. && For a graphical version of this information, see our webpage at: https://www.weather.gov/erh/ghwo?wfo=ict
The office that day
Everything else NWS Wichita, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 9, 2:38 PM CDT | Severe Thunderstorm Warning | ICT | Sedgwick | 21 min |
| Sep 9, 2:53 PM CDT | Severe Thunderstorm Warning | ICT | Chase, Greenwood | 37 min |
| Sep 9, 4:25 PM CDT | Severe Thunderstorm Warning | ICT | Sumner | 35 min |
| Sep 9, 5:24 PM CDT | Severe Thunderstorm Warning | ICT | Chautauqua, Elk, Montgomery | 36 min |
| Sep 9, 6:10 PM CDT | Severe Thunderstorm Warning | ICT | Chautauqua | 35 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.