Severe Thunderstorm Warning Issued for Adams, Washington and Baker Counties

Source: NOAA · Southwestern Idaho and Northeastern Oregon

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

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NWS Boise has issued a Severe Thunderstorm Warning for parts of southwestern Idaho and northeastern Oregon until 4:45 PM MDT.

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 Southwestern Idaho and Northeastern 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 warning protocol behind it, which shapes what protective action (seeking shelter, following evacuation orders if issued, monitoring official updates) is recommended and which agency holds authority to issue or cancel it.

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

A Severe Thunderstorm Warning was issued by the National Weather Service in Boise ID on May 28 at 4:05 PM MDT. The alert is effective from 4:05 PM MDT until 4:45 PM MDT.

Affected Areas

The warning covers West central Adams County in southwestern Idaho, North central Washington County in southwestern Idaho, and Northeastern Baker County in northeastern Oregon. The storm was located over Brownlee Guard Station, or 35 miles north of Weiser, moving northwest at 35 mph.

What You Should Do

For your protection move to an interior room on the lowest floor of a building. When safe to do so, relay storm reports to the National Weather Service in Boise via local law enforcement or NWS Boise social media accounts.

Expected Conditions

At 4:05 PM MDT a severe thunderstorm was located over Brownlee Guard Station. Hazards include 70 mph wind gusts and ping pong ball size hail (1.50 inches). Impacts include injuries to people and animals outdoors, hail damage to roofs, siding, windows and vehicles, considerable tree damage, and wind damage to mobile homes, roofs and outbuildings.

Timeline

The warning is in effect from May 28 at 4:05 PM MDT until May 28 at 4:45 PM MDT. The storm will be near Brownlee Dam around 3:10 PM PDT, Northern Brownlee Reservoir around 4:10 PM MDT, Halfway around 3:30 PM PDT, and Carson and Cornucopia around 3:40 PM PDT.

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 Boise has issued a Severe Thunderstorm Warning for parts of southwestern Idaho and northeastern Oregon until 4:45 PM MDT.
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 Southwestern Idaho and Northeastern 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.