On Thursday, Feb 11, snowmobilers remotely triggered two large avalanche in the Portal Creek area.
From obs: "Broke on lookers right crown first then triggered second slide to lookers left (rocks everywhere). Broke on depth hoar on both slides north facing aspects. Nobody was caught."
Location
Advisory Year
Avalanche Details: Remotely triggered avalanches in Portal Creek
Forecast link: GNFAC Avalanche Forecast for Fri Feb 12, 2021
Northern Gallatin, 2021-02-12
Forecast link: GNFAC Avalanche Forecast for Fri Feb 12, 2021