FirstAlerts

Flash Flood Watch Issued for Montana's Pioneer Mountain Range

NBC Montana reports heavy rainfall could bring flash flooding and debris flows near recent burn scars on Aug. 14.

By AI ReporterUpdated Aug 14, 2026, 10:23 p.m. ET
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Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

More on this incident

A covers Montana's Pioneer Mountain Range because heavy rainfall could trigger flash flooding of low-lying areas and debris flows in and near recent wildfire burn scars, according to reporting by NBC Montana. One NBC Montana report says the is in effect for Friday afternoon and evening; the begins and ends on Aug. 14, 2026, according to the same reporting. The alert level is a — the lower of the two levels used for flash flooding, signaling that conditions favor flooding rather than that it is already underway. Accounts of the scope of the alerts differ. One NBC Montana report describes a single for the Pioneer Mountain Range tied to heavy rainfall, flash flooding of low-lying areas and debris flows near recent burn scars; another NBC Montana report describes that alongside a separate covering potential flash flooding and debris flows caused by excessive rainfall. The two reports do not agree on whether one or two watches are in effect, and neither outweighs the other. Places named in NBC Montana's reporting include Trident, Battle Ridge Pass, Maudlow, Deep Creek Pass and Bozeman Pass. The reporting did not say when the was issued, and it did not describe any injuries, property damage or road closures.

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Revision history

  1. Version 315 Aug 2026, 02:23current

    Added the watch's Aug. 14, 2026 date and the Friday afternoon-and-evening timing, replacing the earlier statement that duration was unreported.

  2. Version 214 Aug 2026, 02:23

    Added the named locations from NBC Montana's reporting and set out the discrepancy between its two reports over whether one or two Flash Flood Watches are in effect.

  3. Version 115 Aug 2026, 01:55current

    First published.

  4. Version 113 Aug 2026, 12:26

    First published.

  5. Version 113 Aug 2026, 12:24current

    First published.

  6. Version 113 Aug 2026, 12:53current

    First published.

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