Severe Thunderstorm Warning for Grant and Wheeler Counties, OR

Source: NOAA · Grant and Wheeler Counties, Oregon

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NWS Pendleton has issued a Severe Thunderstorm Warning for southeastern Wheeler County and northwestern Grant County until 5:00 PM PDT.

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

This notice was issued by NOAA on June 13, 2026 and geographically references Grant and Wheeler Counties, Oregon. 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.

For decision-making, Areazine pairs each alert with the original agency URL, the full agency name, and a timestamp so you can verify the notice against the primary source before acting on it. Tags on this item (weather, alert, Severe Thunderstorm Warning, Oregon) map to related alerts in the same area of risk — browsing them together gives a clearer picture than any single notice alone, because the shape of an ongoing issue only becomes visible across multiple sequential alerts.

Alert Details

A Severe Thunderstorm Warning was issued by the National Weather Service in Pendleton, OR. The alert is effective from 4:04 PM PDT on May 28, 2026, until 5:00 PM PDT on May 28, 2026.

Affected Areas

The warning covers southeastern Wheeler County in northeastern Oregon and northwestern Grant County in central Oregon. Impacted locations include Mount Vernon, Dayville, Monument, Antone, Kimberly, and Hamilton. Affected highways include Highway 26 between mile markers 125 and 155 and between mile markers 68 and 98, and Highway 395 between mile markers 99 and 120.

What You Should Do

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

Expected Conditions

At 4:04 PM PDT, a severe thunderstorm was located 7 miles east of Dayville, or 21 miles west of John Day, moving northwest at 35 mph. Hazards include 70 mph wind gusts and half dollar size hail (1.25 inches).

Timeline

The warning is in effect until 5:00 PM PDT on May 28, 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 Pendleton has issued a Severe Thunderstorm Warning for southeastern Wheeler County and northwestern Grant County until 5:00 PM PDT.
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 Grant and Wheeler Counties, Oregon. 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.