Severe Thunderstorm Warning for Boone, Hamilton, Story Counties in Iowa

Source: NOAA · Central Iowa

If you are in immediate danger, call emergency services now.

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NWS Des Moines has issued a Severe Thunderstorm Warning for northwestern Story, southern Hamilton, and northeastern Boone counties in central Iowa until 7:45 PM CDT June 10.

What this NWS weather alert tells you, and what most readers miss

This notice was issued by NOAA on July 4, 2026 and geographically references Central Iowa. Its severity classification of "high" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Weather Alerts - determines the regulatory framework behind it, which shapes what remedies (refunds, replacements, recalls, evacuations) are available to affected individuals and who holds statutory responsibility for enforcement.

Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to read it as a data point about the issuing system: how quickly NOAA detected the hazard, how precise the geographic or product-identifier scope is, and whether similar notices have clustered in the same category or region in the last 90 days. Cluster patterns frequently precede a broader regulatory action, a single localized NWS weather alert is isolated; three of them within a quarter often indicate a supply-chain, infrastructure, or seasonal driver that will keep producing notices until something structural changes.

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Alert Details

Severe Thunderstorm Warning issued by NWS Des Moines IA. Effective from 2026-06-10T19:03:00-05:00 until 2026-06-10T19:45:00-05:00. Alert type code: SVR.

Affected Areas

Boone County (northeastern), Hamilton County (southern), and Story County (northwestern) in central Iowa. Locations impacted include Story City, Jewell Junction, Stratford, Ellsworth, Stanhope, and Randall, as well as Interstate 35 between mile markers 122 and 135.

What You Should Do

For your protection move to an interior room on the lowest floor of a building.

Expected Conditions

At 7:03 PM CDT, a severe thunderstorm was located near Stratford, or 11 miles north of Boone, moving east at 25 mph. Hazards include 60 mph wind gusts and quarter size hail (1.00 inch). Radar indicated.

Timeline

The warning is in effect until 7:45 PM CDT on June 10, 2026.

Original source: NOAA Official Notice ↗

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Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Des Moines has issued a Severe Thunderstorm Warning for northwestern Story, southern Hamilton, and northeastern Boone counties in central Iowa until 7:45 PM CDT June 10.
Which agency issued this alert?
This alert was issued by NOAA. The original notice is available at the source link at the bottom of this article.
How severe is this alert?
This alert is classified as "high" severity. Take precautions and monitor for updates.
What area is affected?
This alert affects Central Iowa. Check with NOAA for the most current geographic scope.
Where can I find more Weather Alerts updates?
Browse the full Weather Alerts feed on Areazine at areazine.com/weather/ for the latest updates from NOAA and other agencies.