Alert archive / Iowa / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 107, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 16, 2025, 6:15 PM CDT for Calhoun County, Palo Alto County, Pocahontas County, Iowa. It was in force for 60 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
- Jun 16, 2025, 6:15 PM CDT (23:15 UTC)
- Expired
- Jun 16, 2025, 7:15 PM CDT
- In force
- 60 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Calhoun County, IA, Palo Alto County, IA, Pocahontas County, IA
The radar
The Des Moines radar (KDMX), 136 km from the middle of the area, began a volume at 23:16 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 |
|---|---|---|---|
| Jun 16, 5:11 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 11.3 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
- 575 J/kg
- Mixed-layer CIN
- -77 J/kg
- Mixed-layer LCL
- 874 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
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 Jun 16, 2:48 PM CDT, 3 hours 27 minutes earlier.
Area forecast discussion, Jun 16, 2:48 PM CDT, 3 hours 27 minutes before
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Hazardous Weather Outlook National Weather Service Des Moines IA 404 AM CDT Mon Jun 16 2025 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-170915- 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- 404 AM CDT Mon Jun 16 2025 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...Today and tonight Scattered thunderstorms are expected again today, with stronger and more widespread storms during the afternoon and evening. Some storms this afternoon and evening may be severe, with hail, damaging winds, and tornadoes all possible. Localized heavy rain may also lead to ponding of water. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday Severe storms are again possible on Tuesday, with gusty winds, hail, and tornadoes possible. Heavy rainfall is also expected, which will add the potential for flash flooding and river rises. Additional rounds of storms are expected through the week. Details on these later storms will become clear er in the coming days. .SPOTTER INFORMATION STATEMENT... Spotter activation may be needed this afternoon and evening.
In the hours before
Local storm report, Jun 16, 1:49 PM CDT, 4 hours 26 minutes 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 |
|---|---|---|---|---|
| Jun 15, 7:06 PM CDT | Special Weather Statement | DMX | Ringgold | 24 min |
| Jun 15, 7:30 PM CDT | Special Weather Statement | DMX | Taylor | 30 min |
| Jun 15, 7:38 PM CDT | Special Weather Statement | DMX | Dallas | 37 min |
| Jun 15, 7:50 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 40 min |
| Jun 15, 8:14 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 16 min |
| Jun 15, 8:48 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 31 min |
| Jun 16, 7:26 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 49 min |
| Jun 16, 9:57 AM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 48 min |
| Jun 16, 1:58 PM CDT | Special Weather Statement | DMX | Black Hawk | 32 min |
| Jun 16, 2:29 PM CDT | Special Weather Statement | DMX | Black Hawk | 16 min |
| Jun 16, 6:07 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 38 min |
| Jun 16, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Sac | 47 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.