Alert archive / Iowa / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 270, NWS Quad Cities, IA
NWS Quad Cities, IA issued this severe thunderstorm warning at Aug 13, 2026, 9:36 AM CDT for 5 counties in Iowa. It was in force for 54 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
- Aug 13, 2026, 9:36 AM CDT (14:36 UTC)
- Expired
- Aug 13, 2026, 10:30 AM CDT
- In force
- 54 min
- Issued by
- NWS Quad Cities, IA
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Henry County, IA, Jefferson County, IA, Louisa County, IA, Van Buren County, IA, Washington County, IA
The radar
The Quad Cities radar (KDVN), 110 km from the middle of the area, began a volume at 14:37 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 |
|---|---|---|---|
| Aug 13, 5:47 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
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 Quad Cities, IA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 12, 2:10 PM CDT, 19 hours 26 minutes earlier.
Area forecast discussion, Aug 12, 2:10 PM CDT, 19 hours 26 minutes before
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</html>Hazardous weather outlook, Aug 12, 2:21 PM CDT, 19 hours 15 minutes before
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<div class="status" id="status">Temporary Notice</div>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>The office that day
Everything else NWS Quad Cities, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 2:22 AM CDT | Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 56 hr |
| Aug 13, 2:35 AM CDT | Dense Fog Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 9 more | 6 hr |
| Aug 13, 8:52 AM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk | 53 min |
| Aug 13, 9:10 AM CDT | Tornado Warning | DVN | Jefferson, Keokuk, Washington | 50 min |
| Aug 13, 9:44 AM CDT | River Flood Watch | DVN | Clinton, Scott | 81 min |
| Aug 13, 10:35 AM CDT | Special Weather Statement | DVN | Des Moines, Louisa | 55 min |
| Aug 13, 11:05 AM CDT | River Flood Warning | DVN | Clinton, Scott | 23 hr |
| Aug 13, 11:07 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 62 hr |
| Aug 13, 11:10 AM CDT | River Flood Watch | DVN | Johnson, Louisa, Washington | 68 hr |
| Aug 13, 11:10 AM CDT | River Flood Watch | DVN | Louisa | 7 days |
| Aug 13, 11:10 AM CDT | River Flood Watch | DVN | Louisa | 7 days |
| Aug 13, 11:10 AM CDT | River Flood Warning | DVN | Benton, Iowa | 37 hr |
| Aug 13, 11:14 AM CDT | River Flood Watch | DVN | Johnson, Washington | 72 hr |
| Aug 13, 11:13 AM CDT | Special Weather Statement | DVN | Henry, Mercer | 47 min |
| Aug 13, 12:04 PM CDT | Special Weather Statement | DVN | Stark | 56 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 2026Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.