Parched Southern California continued to face dangerous winds but could get some badly needed rain this weekend, forecasters said Tuesday, dampening the prospects of another round of killer wildfires though even a small amount of precipitation could create new challenges like toxic ash runoff.

Los Angeles officials were preparing for that prospect even as a small number of residents were allowed to return to the devastated Pacific Palisades area and firefighters battled small blazes that broke out.

Mayor Karen Bass issued an executive order to expedite cleanup efforts in burn areas and mitigate the environmental impacts of fire-related pollutants. She ordered crews to remove vegetation, shore up hillsides, install barriers and reinforce roads ahead of the possible weekend rain, which could create mud and debris flows.

“This is to prevent additional damage to areas already ravaged by fire and also to protect our watershed, beaches and ocean from toxic runoff,” Bass said during a news conference.

A 60% to 80% chance of a small amount of rain was forecast for Southern California starting Saturday, with most areas likely getting not more than a third of an inch, according to Ryan Kittell, a meteorologist for the National Weather Service’s office for Los Angeles. However up to an inch could fall in localized thunderstorms, which would be a worst-case scenario if enough to trigger debris flows on scorched hillsides.

“But even if the rain doesn’t materialize this time, it could be a good practice run for those communities because this will be a threat that they’ll have to deal with for months or years,” Kittell said.

In 2018, Montecito, a town 80 miles up the coast from Los Angeles, was ravaged by mudslides after a downpour hit mountain slopes burned bare by a huge wildfire. Twenty-three people died, and hundreds of homes were damaged.

Winds eased somewhat Tuesday afternoon after peaking at 60 mph in many areas, but gusty conditions were expected to return the next two days. Red flag warnings for critical fire risk were extended through 8 p.m. Thursday in LA and Ventura counties.

“Our concern is the next fire, the next spark that causes the next wildfire,” said David Acuna, a spokesman with the California Department of Forestry and Fire Protection, or Cal Fire. Another worry was that the two major blazes, the Palisades and Eaton fires, could break their containment lines as firefighters continue to keep watch for hot spots.

Fire engines and water-dropping aircraft allowed crews to swiftly douse several small blazes that popped up in LA and San Diego counties, officials said.

Southern California Edison preemptively shut off power to more than 60,000 customers in five counties to prevent new fires from being sparked by winds toppling electrical equipment; electricity was later restored to some. The utility was considering precautionary shutoffs for an additional 202,000 customers.

Authorities urged residents to review evacuation plans, prepare emergency kits and be on the lookout for fires and report them quickly.

Bass also warned that winds could carry ash and advised Angelenos to visit the city’s website to learn how to protect themselves from toxic air during the latest Santa Ana wind event.

The low humidity, bone-dry vegetation and strong winds come as firefighters continue battling the Palisades and Eaton fires, which have killed at least 28 and destroyed more than 14,000 structures since they broke out Jan. 7. Containment of the Palisades reached 61%, and the Eaton was at 87%.