Alert archive / Iowa / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 173, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 22, 2024, 7:46 PM CDT for Decatur County, Wayne County, Iowa. It was in force for 44 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 22, 2024, 7:46 PM CDT (00:46 UTC)
- Expired
- Jun 22, 2024, 8:30 PM CDT
- In force
- 44 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Decatur County, IA, Wayne County, IA
The radar
The Des Moines radar (KDMX), 111 km from the middle of the area, began a volume at 00:50 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 22, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.8 hours before the alert went out and 274 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
- 1535 J/kg
- Mixed-layer CIN
- -5 J/kg
- Mixed-layer LCL
- 1281 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 339 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 18.7
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 22, 6:35 PM CDT, 1 hour 11 minutes earlier.
Area forecast discussion, Jun 22, 6:35 PM CDT, 1 hour 11 minutes before
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</html>Hazardous weather outlook, Jun 22, 2:58 PM CDT, 4 hours 48 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 258 PM CDT Sat Jun 22 2024 IAZ004>007-015>017-023>028-035>039-232000- Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo- Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-Webster- Hamilton-Hardin-Grundy-Black Hawk- 258 PM CDT Sat Jun 22 2024 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight A Flood Watch for excessive rainfall is in effect for the area into the early evening. Please visit weather.gov/dmx for more details. A few strong to severe thunderstorms may be possible this afternoon and evening. Main threats would be for damaging winds and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Sunday through Friday Additional storm chances return to the forecast by around the middle of next week. Severe weather may be possible late Monday with details being better defined in the coming days. .SPOTTER INFORMATION STATEMENT... Spotters may be needed this afternoon. Severe weather reports, reports of rainfall and any flooding are appreciated. IAZ033-034-044>050-057>062-070>075-081>086-092>097-232000- Sac-Calhoun-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- 258 PM CDT Sat Jun 22 2024 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight A few strong to severe thunderstorms may be possible this afternoon and evening over eastern areas. Main threats would be for damaging winds and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Sunday through Friday Additional storm chances return to the forecast by around the middle of next week. Severe weather may be possible late Monday with details being better defined in the coming days. .SPOTTER INFORMATION STATEMENT... Spotters may be needed this afternoon. Severe weather reports, reports of rainfall and any flooding are appreciated.
In the hours before
Local storm report, Jun 22, 4:40 PM CDT, 3 hours 6 minutes before
Preliminary Local Storm Report
National Weather Service Des Moines IA
440 PM CDT Sat Jun 22 2024
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0434 PM Funnel Cloud 1 S Janesville 42.62N 92.46W
06/22/2024 Black Hawk IA Emergency Mngr
Funnel cloud near Highway 218 approaching
the Bremer County line.
&&
BSSThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 2:36 AM CDT | Heat Advisory | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 25 more | 41 hr |
Nearby
Severe Thunderstorm Warnings in Iowa, 2024Every severe thunderstorm warning in 2024
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.