Alert archive / Iowa / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 166, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 19, 2025, 11:13 PM CDT for Lucas County, Wayne County, Iowa. It was in force for 33 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
- Jul 19, 2025, 11:13 PM CDT (04:13 UTC)
- Expired
- Jul 19, 2025, 11:46 PM CDT
- In force
- 33 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Lucas County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 100 km from the middle of the area, began a volume at 04:15 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, 4.2 hours before the alert went out and 250 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
- 783 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1060 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
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 Des Moines, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 19, 7:01 PM CDT, 4 hours 12 minutes earlier.
Area forecast discussion, Jul 19, 7:01 PM CDT, 4 hours 12 minutes before
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</html>Hazardous weather outlook, Jul 19, 3:31 PM CDT, 7 hours 42 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 331 PM CDT Sat Jul 19 2025 IAZ004>007-015>017-023>028-202045- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer- 331 PM CDT Sat Jul 19 2025 This Hazardous Weather Outlook is for portions of north central Iowa. .DAY ONE...This afternoon and tonight Scattered thunderstorms are possible tonight. A severe storm with 60 mph winds may occur. Rainfall amounts of 2 inches or more may occur south of Highway 3. .DAYS TWO THROUGH SEVEN...Sunday through Friday Isolated non-severe thunderstorms may occur early Sunday. Additional storms are possible mid to late next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated. IAZ033>039-044>050-057>062-070>075-083>086-097-202045- Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford- Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas- Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska- Clarke-Lucas-Monroe-Wapello-Davis- 331 PM CDT Sat Jul 19 2025 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight A Flood Watch for flash flooding potential is in effect for the area. Please refer to the National Weather Service website at weather.gov/desmoines for further details. Thunderstorms will become widespread overnight with strong storms with the potential for large hail, damaging winds and a tornado are possible. Heavy rainfall will occur in some areas. .DAYS TWO THROUGH SEVEN...Sunday through Friday There is a Marginal Risk (level 1 of 5) for severe weather and excessive rainfall on Sunday and Monday with damaging winds being the primary severe threat. Additional storms are possible mid to late next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible through tonight. IAZ081-082-092>096-202045- Adams-Union-Taylor-Ringgold-Decatur-Wayne-Appanoose- 331 PM CDT Sat Jul 19 2025 This Hazardous Weather Outlook is for portions of south central Iowa. .DAY ONE...This afternoon and tonight A few strong storms with the potential for large hail, damaging winds and a tornado are possible through tonight. In addition, heavy rainfall greater than 2 inches may occur in some areas. .DAYS TWO THROUGH SEVEN...Sunday through Friday There is a Marginal Risk (level 1 of 5) for severe weather and excessive rainfall on Sunday and Monday with damaging winds being the primary severe threat. Additional storms are possible mid to late next week. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible through tonight.
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 12:05 AM CDT | Special Weather Statement | DMX | Wayne | 25 min |
| Jul 20, 12:29 AM CDT | Special Weather Statement | DMX | Appanoose | 31 min |
| Jul 20, 12:56 AM CDT | Special Weather Statement | DMX | Appanoose | 34 min |
| Jul 20, 3:13 AM CDT | Flash Flood Warning | DMX | Adair, Madison | 6 hr |
| Jul 20, 3:55 AM CDT | Flash Flood Warning | DMX | Dallas, Madison, Polk, Warren | 5 hr |
| Jul 20, 4:27 AM CDT | Special Weather Statement | DMX | Boone | 33 min |
| Jul 20, 5:23 AM CDT | Flash Flood Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 5 hr |
| Jul 20, 5:56 AM CDT | Special Weather Statement | DMX | Hardin, Marshall | 34 min |
| Jul 20, 12:27 PM CDT | River Flood Watch | DMX | Warren | 10 hr |
| Jul 20, 6:45 PM CDT | Severe Thunderstorm Warning | DMX | Polk, Warren | 45 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2025Every severe thunderstorm warning 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.