Sierra Nevada Mountains Under 'Extreme' Avalanche Warning After Heavy Snow

Parts of the Sierra Nevada mountain range were under “extreme” avalanche warnings on Thursday, January 28, after a winter storm brought snow totals up to 76 inches in some locations, the National Weather Service (NWS) said.

The NWS said the High Sierra section of the Sierra Nevada saw between 27 and 76 inches of snowfall by 9:30 am on Thursday. Mammoth Mountain Ski Area said its storm total as of 9:45 am was between 69 and 81 inches of snow.

An extreme avalanche warning is the highest danger level and it advises people to “avoid all avalanche terrain,” according to a graphic shared by the NWS.

Rebecca Ferrell said she filmed this footage on Thursday of heavy snowfall in Mammoth Lakes, a community within the Sierra Nevada. Credit: Rebecca Ferrell via Storyful