Alert archive / Kansas / Tornado Warnings in 2026
Tornado Warning 48, NWS Topeka, KS
NWS Topeka, KS issued this tornado warning at Jun 1, 2026, 12:04 AM CDT for Anderson County, Coffey County, Kansas. It was in force for 8 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 1, 2026, 12:04 AM CDT (05:04 UTC)
- Expired
- Jun 1, 2026, 12:12 AM CDT
- In force
- 8 min
- Issued by
- NWS Topeka, KS
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 1.75 in
Counties Anderson County, KS, Coffey County, KS
The radar
The Topeka radar (KTWX), 112 km from the middle of the area, began a volume at 05:09 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 tornado 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 |
|---|---|---|---|
| May 31, 8:53 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 5.1 hours before the alert went out and 101 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
- 3361 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 898 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 2.2
- Supercell composite
- 10.3
The text
As transmitted.
754
WFUS53 KTOP 010504
TORTOP
KSC003-031-010530-
/O.NEW.KTOP.TO.W.0048.260601T0504Z-260601T0530Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
1204 AM CDT Mon Jun 1 2026
The National Weather Service in Topeka has issued a
* Tornado Warning for...
Southwestern Anderson County in east central Kansas...
Southeastern Coffey County in east central Kansas...
* Until 1230 AM CDT.
* At 1203 AM CDT, a confirmed tornado was located near Le Roy, moving
east at 25 mph.
HAZARD...Damaging tornado and golf ball size hail.
SOURCE...Emergency management confirmed tornado near Oxen at
1204am.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Le Roy.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.
&&
LAT...LON 3814 9575 3812 9548 3804 9547 3804 9577
TIME...MOT...LOC 0503Z 278DEG 20KT 3805 9568
TORNADO...OBSERVED
MAX HAIL SIZE...1.75 IN
$$
Griesemer1 follow-up statement
224 WWUS53 KTOP 010512 SVSTOP Severe Weather Statement National Weather Service Topeka KS 1212 AM CDT Mon Jun 1 2026 KSC003-031-010522- /O.CAN.KTOP.TO.W.0048.000000T0000Z-260601T0530Z/ Anderson-Coffey- 1212 AM CDT Mon Jun 1 2026 ...THE TORNADO WARNING FOR SOUTHWESTERN ANDERSON AND SOUTHEASTERN COFFEY COUNTIES IS CANCELLED... The tornado threat has diminished and the Tornado Warning has been cancelled. However, large hail and damaging winds remain likely and a Severe Thunderstorm Warning remains in effect for the area. A Severe Thunderstorm Watch remains in effect until 400 AM CDT for east central Kansas. && LAT...LON 3814 9575 3812 9548 3804 9547 3804 9577 TIME...MOT...LOC 0510Z 278DEG 20KT 3804 9561 $$ Griesemer
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Topeka, KS wrote its last area forecast discussion before this tornado warning went out at May 31, 6:18 PM CDT, 5 hours 46 minutes earlier. Its key messages:
- -A conditional threat for severe storms continues this evening, however, some uncertainty exists in whether storms develop. -Best chances for storms early week will be in central KS. Chances increase eastward later in the week. -Hot and humid to start the week, slightly cooler midweek.
Area forecast discussion, May 31, 6:18 PM CDT, 5 hours 46 minutes before
Area Forecast Discussion National Weather Service Topeka KS 618 PM CDT Sun May 31 2026 .KEY MESSAGES... -A conditional threat for severe storms continues this evening, however, some uncertainty exists in whether storms develop. -Best chances for storms early week will be in central KS. Chances increase eastward later in the week. -Hot and humid to start the week, slightly cooler midweek. && .DISCUSSION... Issued at 148 PM CDT Sun May 31 2026 The main focus in the short-term is on the potential for severe thunderstorms this evening. Looking at the synoptic pattern, southwest flow persists aloft with an H5 trough axis across the Northern Plains. Water vapor isn't showing much in the way of shortwaves within the southwest flow as of midday. At the surface low pressure is over northern Oklahoma and southern Kansas early this afternoon. Instability has been building in the wake of this morning's thunderstorm activity, although cloud cover is hampering temps/dew points and associated instability a bit. The cloud cover could continue to be a factor. However, most models agree on a quick increase in instability into the evening with over 3000 J/kg of MLCAPE in eastern KS by 21/22Z. The 18Z TOP RAOB still shows a cap with 14C at 750mb. RAP forecast soundings show a similar cap, but erode it by around 01/02Z. Some CAMs show storm initiation in our southeastern counties around that same timeframe. Have kept POPs only around 30 percent given uncertainty that remains on a forcing mechanism and whether the cap can be overcome. If storms do develop, there should be enough instability and deep layer shear to support supercells with a damaging wind and hail risk. Backed sfc and low level winds would also aid in a tornado risk with both RAP and HRRR forecast soundings showing over 100 m2/s2 of 0-1km SRH and over 200 m2/s2 of 0-3km SRH. Monday looks hot and humid with highs reaching the upper 80s and low 90s. Most of the day should be dry but chances for storms will begin increasing again Monday night and early Tuesday, mainly in central KS where models show impacts from a shortwave H5 trough. A mid-level ridge will build over the area early in the week and a sfc ridge will move in from the northeast midweek. That set up should keep the main axis of storms in central KS until the upper ridge advances eastward as an upper trough moves across the far northern CONUS. Shortwaves aloft can be tough to predict several days in advance, but in general, POPs will increase eastward late in the week as that ridge pushes east. The 12Z run of long range models continue to show a storm system moving over KS next weekend, which would keep rain chances around. Temperature-wise, a slight cool down is expected through midweek due to the sfc ridge nudging in from the east. && .AVIATION /00Z TAFS THROUGH 00Z MONDAY/... Issued at 618 PM CDT Sun May 31 2026 Main short-term aviation concern will be thunderstorm development across east-central KS this evening that may impact KTOP and KFOE. Kept mention at PROB30 as coverage in storms will remain isolated to scattered in nature. Following storms this evening, model guidance continues to be confident in fog development as clear skies build in across the TAF locations. Ensemble guidance depicts areas further west, such as KMHK, will see the best chances for visibilities under 1SM (60%+ chances). Areas further east may dip into MVFR and high- end IFR status, but confidence in dense fog this far east at KTOP and KFOE is low at this time. Fog should clear off a few hours after sunrise Monday morning with mostly clear skies and light winds the remainder of the TAF. && .TOP WATCHES/WARNINGS/ADVISORIES... None. && DISCUSSION...Teefey AVIATION...Griesemer
Hazardous weather outlook, May 31, 1:58 PM CDT, 10 hours 6 minutes before
Hazardous Weather Outlook National Weather Service Topeka KS 158 PM CDT Sun May 31 2026 KSZ008>012-020>024-026-034>040-054>056-058-059-011900- Republic-Washington-Marshall-Nemaha-Brown-Cloud-Clay-Riley- Pottawatomie-Jackson-Jefferson-Ottawa-Dickinson-Geary-Morris- Wabaunsee-Shawnee-Douglas-Lyon-Osage-Franklin-Coffey-Anderson- 158 PM CDT Sun May 31 2026 This Hazardous Weather Outlook is for central Kansas, east central Kansas, north central Kansas and northeast Kansas. .DAY ONE...This afternoon and tonight. A few thunderstorms may develop in eastern Kansas this evening. Any storm that develops could produce damaging wind, and large hail. A tornado could also occur. .DAYS TWO THROUGH SEVEN...Monday through Saturday. There is a slight chance for a few additional storms Monday evening and night. These storms could produce some gusty winds or small hail, primarily in central Kansas. && More detailed information can be found at: www.weather.gov/media/top/DssPacket.pdf
In the hours before
Local storm report, May 31, 9:05 PM CDT, 2 hours 59 minutes before
Preliminary Local Storm Report
National Weather Service Topeka KS
905 PM CDT Sun May 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0904 PM Hail 3 SW Olpe 38.23N 96.21W
05/31/2026 E1.75 Inch Lyon KS Emergency Mngr
&&Local storm report, May 31, 11:05 PM CDT, 59 minutes before
Preliminary Local Storm Report
National Weather Service Topeka KS
1105 PM CDT Sun May 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1050 PM Hail 3 E Gridley 38.10N 95.84W
05/31/2026 M2.25 Inch Coffey KS Public
Resent. Report from mPING: Hen Egg+ (2.25
in.).
&&Local storm report, May 31, 11:14 PM CDT, 50 minutes before
Preliminary Local Storm Report
National Weather Service Topeka KS
1114 PM CDT Sun May 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1102 PM Hail 5 WSW Emporia 38.38N 96.26W
05/31/2026 M1.00 Inch Lyon KS Storm Chaser
Spotter network report.
&&
DRLocal storm report, May 31, 11:27 PM CDT, 37 minutes before
Preliminary Local Storm Report
National Weather Service Topeka KS
1127 PM CDT Sun May 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1052 PM Hail Gridley 38.10N 95.88W
05/31/2026 E2.50 Inch Coffey KS Emergency Mngr
Emergency manager relayed photo of estimated
tennis ball size hail in Gridley. Time
estimated from radar.
&&
DRLocal storm report, May 31, 11:28 PM CDT, 36 minutes before
Preliminary Local Storm Report
National Weather Service Topeka KS
1128 PM CDT Sun May 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1126 PM Hail 6 W Le Roy 38.10N 95.74W
05/31/2026 E1.75 Inch Coffey KS Public
Report from mPING: Golf Ball (1.75 in.).
&&Local storm report, May 31, 11:53 PM CDT, 11 minutes before
Preliminary Local Storm Report
National Weather Service Topeka KS
1153 PM CDT Sun May 31 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1143 PM Hail 3 N Olpe 38.30N 96.18W
05/31/2026 E1.50 Inch Lyon KS Public
Report from mPING: Ping Pong Ball (1.50
in.).
&&The office that day
Everything else NWS Topeka, KS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 8:33 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 27 min |
| May 31, 8:48 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 27 min |
| May 31, 8:57 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 48 min |
| May 31, 9:10 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 35 min |
| May 31, 9:28 PM CDT | Severe Thunderstorm Warning | TOP | Lyon, Osage | 47 min |
| May 31, 9:42 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 33 min |
| May 31, 10:12 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 11 min |
| May 31, 10:18 PM CDT | Severe Thunderstorm Warning | TOP | Coffey | 27 min |
| May 31, 10:30 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Lyon | 30 min |
| May 31, 10:39 PM CDT | Flash Flood Warning | TOP | Lyon | 4 hr |
| May 31, 10:39 PM CDT | Severe Thunderstorm Warning | TOP | Coffey | 51 min |
| May 31, 10:42 PM CDT | Tornado Warning | TOP | Coffey | 19 min |
| May 31, 10:47 PM CDT | Severe Thunderstorm Warning | TOP | Dickinson | 25 min |
| May 31, 10:56 PM CDT | Severe Thunderstorm Warning | TOP | Coffey, Lyon | 49 min |
| May 31, 11:17 PM CDT | Areal Flood Advisory | TOP | Lyon | 62 min |
| May 31, 11:19 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 26 min |
| May 31, 11:19 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 26 min |
| May 31, 11:23 PM CDT | Severe Thunderstorm Warning | TOP | Coffey | 52 min |
| May 31, 11:29 PM CDT | Severe Thunderstorm Warning | TOP | Coffey | 46 min |
| May 31, 11:40 PM CDT | Flash Flood Warning | TOP | Coffey | 3 hr |
| May 31, 11:44 PM CDT | Tornado Warning | TOP | Coffey | 14 min |
| May 31, 11:47 PM CDT | Severe Thunderstorm Warning | TOP | Lyon | 43 min |
| Jun 1, 12:09 AM CDT | Severe Thunderstorm Warning | TOP | Anderson, Coffey | 51 min |
| Jun 1, 12:14 AM CDT | Severe Thunderstorm Warning | TOP | Morris, Wabaunsee | 31 min |
| Jun 1, 12:18 AM CDT | Flash Flood Warning | TOP | Lyon | 2 hr |
| Jun 1, 12:31 AM CDT | Severe Thunderstorm Warning | TOP | Lyon, Wabaunsee | 30 min |
| Jun 1, 12:33 AM CDT | Severe Thunderstorm Warning | TOP | Lyon | 27 min |
| Jun 1, 12:37 AM CDT | Severe Thunderstorm Warning | TOP | Anderson | 38 min |
| Jun 1, 12:40 AM CDT | Severe Thunderstorm Warning | TOP | Coffey | 13 min |
| Jun 1, 12:45 AM CDT | Severe Thunderstorm Warning | TOP | Wabaunsee | 30 min |
| Jun 1, 12:51 AM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 39 min |
| Jun 1, 1:09 AM CDT | Severe Thunderstorm Warning | TOP | Pottawatomie, Shawnee, Wabaunsee | 36 min |
| Jun 1, 1:27 AM CDT | Severe Thunderstorm Warning | TOP | Jefferson | 17 min |
| Jun 1, 1:40 AM CDT | Severe Thunderstorm Warning | TOP | Jackson, Shawnee | 35 min |
| Jun 1, 2:21 AM CDT | Areal Flood Warning | TOP | Coffey, Lyon | 9 hr |
Nearby
Tornado Warnings in Kansas, 2026Every tornado warning in 2026Tornadoes 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.