Size 4: Could destroy a railway car, large truck, several buildings, or a substantial amount of forest
Approx 1 mile long crown averaging several feet deep.
Signs of Unstable Snow
A very large natural wind slab triggered midday Tuesday on an east aspect between 7500-5500'. Likely D4 on the destructive scale. Other large (D2-2.5) avalanches were also observed in the sub drainages of White River on east and north aspects. Photos: Ben Ticknor