Yellowstone National Park, Wyoming

Regional Weather Alerts


Alert: Special Weather Statement
Area(s): Bitterroot/Sapphire Mountains
Effective: 2026-07-18 @ 2:14 pm -> 2026-07-18 @ 2:45 pm
Onset: 2026-07-18 @ 2:14 pm
Severity: Moderate
Certainty: Observed
Urgency: Expected
Issued By: NWS Missoula MT on 2026-07-18 @ 2:14 pm
Headline: Special Weather Statement issued July 18 at 1:14PM MDT by NWS Missoula MT
Description: At 114 PM MDT, Doppler radar was tracking a strong thunderstorm 15
miles northeast of Conner, or 20 miles southeast of Hamilton, moving
northeast at 40 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.

Locations impacted include...
Skalkaho Pass.