With warm, dry weather on the horizon, Crater Lake National Park will implement fire restrictions on Friday.

Beginning Friday, fireworks will be prohibited at all times, and smoking will be allowed only in vehicles with an accompanying ashtray, or in areas with at least 3 feet in diameter with no flammable materials present, according to a news release from the National Parks Service.

Additionally, wood and charcoal fires are permitted only within established grills or fire rings, or in portable self-contained grills in Mazama Campground or residential areas within the park, according to the release. Gasoline and propane camp stoves and gas grills are permitted in campgrounds, picnic areas, backcountry areas and residential areas.

The national park received less snow than usual last winter, and has seen below-average precipitation overall this year. Those factors, plus the coming heatwave, have contributed to increased fire danger at the park, according to the release.

People who fail to comply with these restrictions may be cited or arrested, according to the release.