Severe Thunderstorm Warning for Central Custer County, MT

Source: NOAA · Central Custer County, Montana

This alert is no longer in effect.

NOAA issued it on August 17, 2026, 6 days 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.

NWS Billings has issued a Severe Thunderstorm Warning for central Custer County in southeastern Montana until 6:00 PM MDT on August 17, 2026.

Read this weather record in 30 seconds

Record type
Severe Thunderstorm Warning
Affected area
Central Custer County, Montana
Issued
August 17, 2026
Issuing authority
NWS Billings MT

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 6 days ago; use the issuing agency's live warning service for current conditions in Central Custer County, Montana.

Alert Details

A Severe Thunderstorm Warning (SVR) has been issued by the National Weather Service in Billings MT. The alert is effective from August 17, 2026 at 5:16 PM MDT until August 17, 2026 at 6:00 PM MDT.

Affected Areas

Central Custer County in southeastern Montana. Locations impacted include Mizpah. The storm was located 18 miles east of Miles City at the time of issuance.

What You Should Do

Seek shelter inside a well-built structure and stay away from windows. Do not drive your vehicle through flooded roadways.

Expected Conditions

At 5:16 PM MDT, a severe thunderstorm was located 18 miles east of Miles City, moving southeast at 30 mph. Hazards include 60 mph wind gusts and quarter size hail (1.00 inch). Torrential rainfall is occurring and may lead to flash flooding. Hail damage to vehicles is expected. Wind damage to roofs, siding, and trees is possible.

Timeline

The warning is in effect from 5:16 PM MDT to 6:00 PM MDT on August 17, 2026.

Original source: NOAA Official Notice ↗

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Nationwide notices with similar length or severity timing 8

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.

Frequently Asked Questions

Common questions about this NWS weather alert.

What is this NWS weather alert about?
NWS Billings has issued a Severe Thunderstorm Warning for central Custer County in southeastern Montana until 6:00 PM MDT on August 17, 2026.
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 Custer County, Montana. 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.