‘The threat is here’: searing US heatwave bad news for wildfire season and water supply

Experts say brutal temperatures in west threaten to melt sparse snowpack - and warn hot, dry conditions here to stay

A stunning heatwave that shattered records in the US west is threatening to rapidly melt the sparse snowpack and ramp up wildfire risks in the seasons ahead.

March has already been historically hot, but the early onset of summer weather across the region may be here to stay. There's little reprieve in forecasts, which show more heat records may fall this spring.