Alert archive / Iowa / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 45, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Apr 14, 2026, 11:42 PM CDT for Adams County, Taylor 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 counties it named.
The facts
- Issued
- Apr 14, 2026, 11:42 PM CDT (04:42 UTC)
- Expired
- Apr 15, 2026, 12:30 AM CDT
- In force
- 48 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Adams County, IA, Taylor County, IA
The radar
The Des Moines radar (KDMX), 125 km from the middle of the area, began a volume at 04:43 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 |
|---|---|---|---|
| Apr 14, 9:56 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Omaha, NE (KOAX), launched 00:00Z, 4.7 hours before the alert went out and 148 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
- 342 J/kg
- Mixed-layer CIN
- -84 J/kg
- Mixed-layer LCL
- 2096 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 84 m²/s²
- 0-3 km storm-relative helicity
- 288 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
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 Apr 14, 6:40 PM CDT, 5 hours 2 minutes earlier.
Area forecast discussion, Apr 14, 6:40 PM CDT, 5 hours 2 minutes before
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</html>Hazardous weather outlook, Apr 14, 6:16 AM CDT, 17 hours 26 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 616 AM CDT Tue Apr 14 2026 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-151400- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-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-Adams-Union- Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-Wayne- Appanoose-Davis- 616 AM CDT Tue Apr 14 2026 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight There is an Enhanced Risk (Level 3 of 5) for severe thunderstorms across much of central through eastern Iowa later today into tonight. Large hail, damaging winds, and tornadoes are all possible. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a Slight Risk (Level 2 of 5) for severe thunderstorms across much Iowa on Wednesday. Large hail, damaging winds, and a tornado or two are possible. There will be additional chances for severe thunderstorms on Friday. Specific details will be better resolved in the coming days. River flooding will also be possible this week as multiple rounds of rainfall occur. Isolated flash flooding is also possible. .SPOTTER INFORMATION STATEMENT... Spotter activation is possible later today.
In the hours before
Local storm report, Apr 14, 6:20 PM CDT, 5 hours 22 minutes before
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</html>Local storm report, Apr 14, 6:21 PM CDT, 5 hours 21 minutes before
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</html>Local storm report, Apr 14, 11:41 PM CDT, 1 minute before
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</html>The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 11:34 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 41 min |
| Apr 15, 12:10 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 50 min |
| Apr 15, 12:45 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Decatur, Madison, Ringgold, Union | 45 min |
| Apr 15, 11:22 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford | 38 min |
| Apr 15, 11:54 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Calhoun, Carroll, Crawford, Greene, Guthrie and 1 more | 66 min |
| Apr 15, 12:49 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Greene, Hamilton, Webster | 56 min |
| Apr 15, 2:06 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Grundy, Hamilton, Hardin, Marshall, Story | 39 min |
| Apr 15, 3:05 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk, Story | 40 min |
| Apr 15, 3:06 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Marshall, Tama | 39 min |
| Apr 15, 3:17 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Madison | 14 min |
| Apr 15, 3:41 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Story | 49 min |
| Apr 15, 3:59 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Madison, Union | 26 min |
| Apr 15, 4:11 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Tama | 49 min |
| Apr 15, 4:23 PM CDT | Severe Thunderstorm Warning | DMX | Madison, Warren | 37 min |
| Apr 15, 4:25 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 19 min |
| Apr 15, 4:26 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk | 19 min |
| Apr 15, 4:31 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 44 min |
| Apr 15, 4:40 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 13 min |
| Apr 15, 4:50 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 25 min |
| Apr 15, 4:58 PM CDT | Tornado Warning | DMX | Clarke, Decatur, Lucas, Wayne | 34 min |
| Apr 15, 5:24 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 17 min |
| Apr 15, 5:28 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Monroe | 47 min |
| Apr 15, 6:09 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Monroe, Wapello | 36 min |
| Apr 15, 6:36 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Monroe, Wayne | 25 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.