Winter Storm Warning Issued for North Snowy Range Foothills and Ferris/Seminoe/Shirley Mountains

Source: NOAA · Wyoming

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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 Winter Storm Warning is in effect from 6 PM MDT Sunday to 6 PM MDT Monday for heavy snow and gusty winds in parts of Wyoming.

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

This notice was issued by NOAA on May 26, 2026 and geographically references Wyoming. 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.

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, Winter Storm Warning, Wyoming) 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 Winter Storm Warning has been issued by the National Weather Service Cheyenne WY. The alert is effective from 6 PM MDT this evening through 6 PM MDT Monday.

Affected Areas

The warning covers Ferris/Seminoe/Shirley Mountains and North Snowy Range Foothills, including Arlington and Elk Mountain along Interstate 80.

What You Should Do

If you must travel, keep an extra flashlight, food, and water in your vehicle. Persons should delay all travel if possible. If travel is absolutely necessary, drive with extreme caution and be prepared for sudden changes in visibility. Leave plenty of room between you and the motorist ahead, allow extra time to reach your destination, and avoid sudden braking or acceleration. Be especially cautious on hills or when making turns. Make sure your car is winterized and in good working order. The latest road conditions can be obtained by calling 511.

Expected Conditions

Heavy snow and periods of drifting snow are expected. Total snow accumulations of 6 to 10 inches are forecast, with higher amounts near the mountains. Winds could gust as high as 35 to 45 mph, with periods of blowing and drifting snow.

Timeline

The Winter Storm Warning is in effect from 6 PM MDT Sunday, May 17, 2026, until 6 PM MDT Monday, May 18, 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?
A Winter Storm Warning is in effect from 6 PM MDT Sunday to 6 PM MDT Monday for heavy snow and gusty winds in parts of Wyoming.
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 Wyoming. 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.