RENO, Nev. (AP) — Another lashing of strong winds expected in northern Nevada raised concerns Wednesday about reviving a wildfire that roared through a neighborhood in Reno in similar weather a day earlier, destroying at least five houses, damaging 15 other structures and forcing people to flee from hundreds of homes.

A separate fire about 100 miles (160 kilometers) south and across the border in California exploded in whipping winds Tuesday, killing one person and burning an unknown number of homes in a small community.

Both blazes got help from rain that moved in overnight, but the new forecast raised fresh fears in Reno.

“We’re looking at 40 mph (64 kph) winds in the valleys again today, 70 mph (112 kph) over the ridgetops, so that will be a concern for us,” Fire Department incident commander Mark Winkelman said.

Two firefighters were injured while battling the blaze over 2 square miles (5 square kilometers) but have been treated and released. One suffered an allergic reaction, and the other tore a calf muscle helping evacuate residents from up to 500 homes threatened Tuesday in southwest Reno.

Extremely dry conditions helped fuel the blaze in rugged, hard-to-reach canyons that run between homes in the densely populated neighborhood, Reno Fire Chief David Cochran said.

“Even though there was literally snow on the ground in some areas, a wind-driven fire like that is almost impossible to stop,” Cochran said.

Nevada is experiencing drought, with much of it in extreme drought, and has moved in and out of such dry conditions for years. Numerous studies have linked bigger wildfires in America to climate change from the burning of coal, oil and gas, which has made parts of the U.S. West much drier and more flammable.

Investigators from the state and Reno fire marshal’s office as well as the utility NV Energy were trying to find the cause of the fire.

Winkelman said it started about 200 yards (183 meters) from the origin point of a November 2011 fire that destroyed 27 homes. That blaze was started by arcing power lines at a substation in strong winds, he said.

On Tuesday, the wind made it impossible to send up aircraft to help fight the flames, with support from local and federal agencies in northern Nevada and neighboring California becoming critical before wet weather moved in later, Winkelman said.