Alert archive / Iowa / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 121, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 5, 2022, 7:31 PM CDT for 7 counties in Iowa. It was in force for 59 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 5, 2022, 7:31 PM CDT (00:31 UTC)
- Expired
- Jul 5, 2022, 8:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Black Hawk County, IA, Bremer County, IA, Butler County, IA, Franklin County, IA, Grundy County, IA, Hardin County, IA, Tama County, IA
The radar
The Des Moines radar (KDMX), 118 km from the middle of the area, began a volume at 00:31 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 |
|---|---|---|---|
| Jul 5, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 0.5 hours before the alert went out and 210 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
- 2613 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1615 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.1
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 5, 6:47 PM CDT, 44 minutes earlier.
Area forecast discussion, Jul 5, 6:47 PM CDT, 44 minutes before
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</html>Hazardous weather outlook, Jul 5, 3:57 PM CDT, 3 hours 34 minutes before
Hazardous Weather Outlook National Weather Service Des Moines IA 357 PM CDT Tue Jul 5 2022 IAZ004>007-015>017-023>028-033>039-044>050-057>062-070>075- 081>086-092>097-062030- 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- 357 PM CDT Tue Jul 5 2022 This Hazardous Weather Outlook is for portions of central Iowa. .DAY ONE...This afternoon and tonight A Heat Advisory is in effect until 8 PM this evening. High heat and humidity will combine to make potentially dangerous conditions with peak heat index values between 100 to 109 degrees this afternoon. Please exercise caution if outdoors this evening. Strong to severe storms are possible tonight with damaging winds and heavy rain being the primary threats. The greatest risk of severe weather is across northern and northwest Iowa, but a few strong to severe storms may still impact portions of central Iowa as well. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Periodic storm chances continue Wednesday into Thursday night for much of the area. There is a marginal risk of severe storms for Wednesday and Thursday with locally heavy rainfall also possible. .SPOTTER INFORMATION STATEMENT... Spotter reports for tonight's storms will be needed. Dodson
In the hours before
Special weather statement, Jul 5, 6:49 PM CDT, 42 minutes before
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</html>Local storm report, Jul 5, 7:04 PM CDT, 27 minutes before
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</html>Local storm report, Jul 5, 7:07 PM CDT, 24 minutes before
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</html>Local storm report, Jul 5, 7:12 PM CDT, 19 minutes before
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</html>Local storm report, Jul 5, 7:16 PM CDT, 15 minutes before
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</html>Local storm report, Jul 5, 7:29 PM CDT, 2 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 |
|---|---|---|---|---|
| Jul 5, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago, Worth | 33 min |
| Jul 5, 7:45 PM CDT | Special Weather Statement | DMX | Adair, Adams, Clarke, Jasper, Lucas, Madison and 8 more | 60 min |
| Jul 5, 8:24 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy | 36 min |
| Jul 5, 8:39 PM CDT | Special Weather Statement | DMX | Adams, Appanoose, Clarke, Davis, Decatur, Lucas and 11 more | 66 min |
| Jul 6, 2:59 PM CDT | Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Carroll, Cass and 16 more | 18 hr |
Nearby
Severe Thunderstorm Warnings in Iowa, 2022Every severe thunderstorm warning in 2022
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.