Alert archive / Iowa / Tornado Warnings in 2026
Tornado Warning 57, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jun 5, 2026, 11:11 PM CDT for Cass County, Iowa. It was in force for 20 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 5, 2026, 11:11 PM CDT (04:11 UTC)
- Expired
- Jun 5, 2026, 11:31 PM CDT
- In force
- 20 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.75 in
County Cass County, IA
The radar
The Des Moines radar (KDMX), 111 km from the middle of the area, began a volume at 04:13 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 5, 11:18 PM CDT | HAIL 1.5 | 3 S Massena, IA | Reports of power flashes and ping pong ball sized hail south of Massena. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
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 5, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 4.2 hours before the alert went out and 129 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
- 1542 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 1674 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted.
826
WFUS53 KDMX 060411
TORDMX
IAC029-060500-
/O.NEW.KDMX.TO.W.0057.260606T0411Z-260606T0500Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
1111 PM CDT Fri Jun 5 2026
The National Weather Service in Des Moines has issued a
* Tornado Warning for...
Southeastern Cass County in southwestern Iowa...
* Until midnight CDT.
* At 1111 PM CDT, a severe thunderstorm capable of producing a
tornado was located 5 miles southwest of Massena, or 14 miles north
of Corning, moving east at 5 mph.
HAZARD...Tornado and golf ball size hail.
SOURCE...Radar indicated rotation.
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.
* This tornadic thunderstorm will remain over mainly rural areas of
southeastern Cass County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!
&&
LAT...LON 4116 9489 4122 9489 4123 9476 4116 9475
TIME...MOT...LOC 0411Z 265DEG 6KT 4119 9484
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
$$
Fowle1 follow-up statement
951 WWUS53 KDMX 060431 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1131 PM CDT Fri Jun 5 2026 IAC029-060441- /O.CAN.KDMX.TO.W.0057.000000T0000Z-260606T0500Z/ Cass IA- 1131 PM CDT Fri Jun 5 2026 ...THE TORNADO WARNING FOR SOUTHEASTERN CASS COUNTY IS CANCELLED... The tornado threat has diminished and the Tornado Warning has been cancelled. However, large hail and damaging winds remain likely and a Severe Thunderstorm Warning remains in effect for the area. A Severe Thunderstorm Watch remains in effect until 300 AM CDT for southwestern Iowa. LAT...LON 4116 9489 4122 9489 4123 9476 4116 9475 TIME...MOT...LOC 0429Z 265DEG 6KT 4119 9479 $$ Fowle
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 5, 9:15 PM CDT | Special Weather Statement | DMX | Marion | 30 min |
| Jun 5, 9:27 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Warren | 48 min |
| Jun 5, 9:33 PM CDT | Tornado Warning | DMX | Marion, Warren | 42 min |
| Jun 5, 9:41 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Madison, Union | 64 min |
| Jun 5, 9:50 PM CDT | Tornado Warning | DMX | Clarke, Madison, Union | 29 min |
| Jun 5, 9:59 PM CDT | Tornado Warning | DMX | Adair, Adams, Cass | 46 min |
| Jun 5, 10:09 PM CDT | Tornado Warning | DMX | Marion, Warren | 45 min |
| Jun 5, 10:18 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Warren | 57 min |
| Jun 5, 10:41 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 64 min |
| Jun 5, 10:44 PM CDT | Flash Flood Warning | DMX | Marion, Warren | 4 hr |
| Jun 5, 10:53 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 67 min |
| Jun 5, 10:59 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 61 min |
| Jun 5, 11:02 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Madison, Union | 32 min |
| Jun 5, 11:23 PM CDT | Flash Flood Warning | DMX | Adair, Adams, Cass, Clarke, Madison, Union | 4 hr |
| Jun 5, 11:25 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Marion, Monroe | 65 min |
| Jun 5, 11:28 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 47 min |
| Jun 5, 11:38 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 67 min |
| Jun 5, 11:42 PM CDT | Flash Flood Warning | DMX | Marion | 3 hr |
| Jun 5, 11:50 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 55 min |
| Jun 6, 12:01 AM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Marion, Monroe, Wapello | 59 min |
| Jun 6, 12:42 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Lucas, Monroe, Wayne | 78 min |
| Jun 6, 1:33 AM CDT | Flash Flood Warning | DMX | Appanoose, Lucas, Marion, Monroe, Wayne | 5 hr |
| Jun 6, 12:59 PM CDT | Areal Flood Warning | DMX | Marion | 20 hr |
Nearby
Tornado Warnings in Iowa, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.