Alert archive / Iowa / Tornado Warnings in 2025
Tornado Warning 21, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Aug 11, 2025, 9:41 PM CDT for Davis County, Iowa. It was in force for 23 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
- Aug 11, 2025, 9:41 PM CDT (02:41 UTC)
- Expired
- Aug 11, 2025, 10:04 PM CDT
- In force
- 23 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
County Davis County, IA
The radar
The Des Moines radar (KDMX), 171 km from the middle of the area, began a volume at 02:40 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
Davenport, (KDVN), launched 00:00Z, 2.7 hours before the alert went out and 183 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
- 491 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1029 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 5.4
The text
As transmitted.
835
WFUS53 KDMX 120241
TORDMX
IAC051-120315-
/O.NEW.KDMX.TO.W.0021.250812T0241Z-250812T0315Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
941 PM CDT Mon Aug 11 2025
The National Weather Service in Des Moines has issued a
* Tornado Warning for...
Southeastern Davis County in southeastern Iowa...
* Until 1015 PM CDT.
* At 941 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Pulaski, or 11 miles southeast of Bloomfield,
moving northeast at 15 mph.
HAZARD...Tornado and quarter 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 Davis 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.
&&
LAT...LON 4064 9233 4075 9218 4060 9218 4060 9232
TIME...MOT...LOC 0241Z 232DEG 14KT 4063 9227
TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
$$
Dodson1 follow-up statement
757 WWUS53 KDMX 120304 SVSDMX Severe Weather Statement National Weather Service Des Moines IA 1004 PM CDT Mon Aug 11 2025 IAC051-120314- /O.CAN.KDMX.TO.W.0021.000000T0000Z-250812T0315Z/ Davis IA- 1004 PM CDT Mon Aug 11 2025 ...THE TORNADO WARNING FOR SOUTHEASTERN DAVIS COUNTY IS CANCELLED... The storm which prompted this warning has moved out of the area. Therefore, the warning has been cancelled. Remember, a Tornado Warning still remains in effect for central and northern Davis county. LAT...LON 4064 9233 4075 9218 4060 9218 4060 9232 TIME...MOT...LOC 0302Z 232DEG 14KT 4069 9218 $$ Dodson
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 9:18 PM CDT | Tornado Warning | DMX | Appanoose, Davis | 27 min |
| Aug 11, 9:39 PM CDT | Tornado Warning | DMX | Davis | 51 min |
Nearby
Tornado Warnings in Iowa, 2025Every tornado warning in 2025Tornadoes in 2025
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.