Severe Thunderstorm Warning Issued for Jasper, Marshall, and Poweshiek Counties in Iowa
This alert is no longer in effect.
NOAA issued it on April 17, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Severe Thunderstorm Warning is in effect for Jasper, Marshall, and Poweshiek counties in Iowa until 3:15 PM CDT, with hazards including ping pong ball-sized hail and 60 mph wind gusts.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Central Iowa
- Issued
- April 17, 2026
- Issuing authority
- NWS Des Moines IA
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Central Iowa.
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service in Des Moines, IA. It is effective from 2:44 PM CDT until 3:15 PM CDT.
Affected Areas
The warning affects Jasper County, Marshall County, and Poweshiek County in Iowa. Specific locations include Newton, Grinnell, Colfax, Prairie City, Rock Creek Lake, Iowa Speedway, Kellogg, Gilman, Mingo, Lambs Grove, Oakland Acres, Grinnell Regional Airport, Prairie City Krohn Airport, Rock Creek State Park, and Newton Municipal Airport. This includes Interstate 80 between mile markers 154 and 184.
What You Should Do
For your protection, move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 8:00 PM CDT for central Iowa.
Expected Conditions
Hazards include ping pong ball size hail (1.50 inches) and wind gusts of 60 mph.
Timeline
The alert is effective from 2:44 PM CDT and will expire at 3:15 PM CDT.
Original source: NOAA Official Notice ↗
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (951 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to April 17, 2026.
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