Tropical Storm Kay bears down on California with rain and 100mph winds

The fierce weather comes with a risk of flash floods and gusts that could fuel wildfires burning across the state

A tropical storm surging up the California coast brought fierce winds on Friday that threatened to fuel ferocious wildfires already burning across the state.

After days of record-breaking heat that tested California's energy capacity, baked moisture out of the drought-stricken landscapes and spurred the spread of deadly fires , the arrival of Tropical Storm Kay produced heavy rains that caused flash floods and threatened more trouble for the state's electric grid.