Alert archive / Iowa / Tornado Warnings in 2025
Tornado Warning 13, NWS Des Moines, IA
NWS Des Moines, IA issued this tornado warning at Jul 11, 2025, 2:27 PM CDT for Jasper County, Marshall County, Iowa. It was in force for 48 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
- Jul 11, 2025, 2:27 PM CDT (19:27 UTC)
- Expired
- Jul 11, 2025, 3:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Jasper County, IA, Marshall County, IA
The radar
The Des Moines radar (KDMX), 54 km from the middle of the area, began a volume at 19:26 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 11, 12:54 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 11, 1:13 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.5 hours before the alert went out and 214 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
- 100 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1159 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- -53 m²/s²
- 0-3 km storm-relative helicity
- -21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
287
WFUS53 KDMX 111927
TORDMX
IAC099-127-112015-
/O.NEW.KDMX.TO.W.0013.250711T1927Z-250711T2015Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Des Moines IA
227 PM CDT Fri Jul 11 2025
The National Weather Service in Des Moines has issued a
* Tornado Warning for...
Southern Marshall County in central Iowa...
Northeastern Jasper County in central Iowa...
* Until 315 PM CDT.
* At 227 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Lambs Grove, or 5 miles west of Newton, moving
northeast at 15 mph.
HAZARD...Tornado.
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 dangerous storm will be near...
Newton and Lambs Grove around 230 PM CDT.
Other locations impacted by this tornadic thunderstorm include Lambs
Grove and Newton Municipal Airport.
This includes Interstate 80 between mile markers 158 and 166.
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 4163 9313 4167 9321 4187 9304 4175 9287
TIME...MOT...LOC 1927Z 211DEG 14KT 4167 9314
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Jimenez1 follow-up statement
233
WWUS53 KDMX 111947
SVSDMX
Severe Weather Statement
National Weather Service Des Moines IA
247 PM CDT Fri Jul 11 2025
IAC127-111956-
/O.CAN.KDMX.TO.W.0013.000000T0000Z-250711T2015Z/
Marshall IA-
247 PM CDT Fri Jul 11 2025
...THE TORNADO WARNING FOR SOUTHERN MARSHALL COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 800 PM CDT for central Iowa.
LAT...LON 4166 9306 4171 9312 4185 9301 4175 9287
TIME...MOT...LOC 1946Z 233DEG 17KT 4171 9305
$$
IAC099-112015-
/O.CON.KDMX.TO.W.0013.000000T0000Z-250711T2015Z/
Jasper IA-
247 PM CDT Fri Jul 11 2025
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CDT FOR
NORTHEASTERN JASPER COUNTY...
At 246 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Newton, moving northeast at 20 mph.
HAZARD...Tornado.
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 dangerous storm will be near...
Newton around 250 PM CDT.
Other locations impacted by this tornadic thunderstorm include Lambs
Grove and Newton Municipal Airport.
This includes Interstate 80 between mile markers 164 and 167.
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 4166 9306 4171 9312 4185 9301 4175 9287
TIME...MOT...LOC 1946Z 233DEG 17KT 4171 9305
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
JimenezThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 10:47 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass, Guthrie | 43 min |
| Jul 10, 11:10 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 35 min |
| Jul 10, 11:20 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Audubon, Cass, Dallas, Guthrie and 2 more | 55 min |
| Jul 10, 11:45 PM CDT | Tornado Warning | DMX | Guthrie | 30 min |
| Jul 11, 12:04 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison, Polk, Warren | 71 min |
| Jul 11, 12:57 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Polk, Warren | 48 min |
| Jul 11, 1:04 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 56 min |
| Jul 11, 1:40 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Marshall, Poweshiek, Tama | 65 min |
| Jul 11, 3:09 AM CDT | Flash Flood Warning | DMX | Dallas, Madison, Polk, Warren | 3 hr |
| Jul 11, 2:18 PM CDT | Tornado Warning | DMX | Wapello | 30 min |
| Jul 11, 2:38 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 23 min |
| Jul 11, 3:42 PM CDT | Flash Flood Warning | DMX | Black Hawk | 3 hr |
| Jul 11, 3:51 PM CDT | Flash Flood Warning | DMX | Dallas, Madison, Polk, Warren | 3 hr |
| Jul 11, 3:58 PM CDT | Tornado Warning | DMX | Taylor | 32 min |
| Jul 11, 4:19 PM CDT | Tornado Warning | DMX | Clarke | 26 min |
| Jul 11, 6:44 PM CDT | Areal Flood Warning | DMX | Black Hawk | 4 hr |
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.