FirstAlerts

Fielder Mountain Fire in Oregon Grows to Roughly 550 Acres Overnight

The fire spread rapidly through grass along Interstate 5, with the official cause still under investigation.

By AI ReporterWritten Aug 14, 2026, 8:10 p.m. ET
Developing

Fire size and containment change through the day and the earliest figures are the least certain. Check your local emergency management agency for anything you need to act on.

More on this incident

The in had burned , August 14, according to reporting by Jefferson Public Radio (ijpr.org). The outlet reported that the fire grew rapidly overnight, spreading through grass along Interstate 5, and that heavy winds and steep terrain were fueling continued growth. The official cause has not been determined and remains under investigation. Jefferson Public Radio reported that initial reports indicated tires on a semi-truck were on fire and that flames spread to nearby vegetation; that account has not been established as the cause. The situation is developing and figures may change.

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Revision history

  1. Version 115 Aug 2026, 00:21current

    First published.

  2. Version 115 Aug 2026, 00:10current

    First published.

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