Second snowmobiler managed to get away Saturday
Buried weak layers mean large slabs of snow could break off at any moment, forecasters warn
Some south coast rivers and streams could exceed levels seen only every five years
Emergency services stop along Hwy. 33
Early winter cold and dry spells created deeply buried weak layers of snow, say forecasters
The highway will be closed until at least 9 p.m.
Individual closures of up to 1.5 hours between 10 a.m. and 2 p.m.
The avalanche occurred on Tuesday, April 5
Warning covers alpine, treeline and below-treeline sections on south coast mountains
Avalanche risk in the Sea to Sky region is high, RCMP say
Vancouver Island and the southern coast being drenched with the series of rainstorms