Two young children and their great-grandmother are among the five people who have died in a raging wildfire in Northern California that doubled in size overnight. Relatives on Saturday identified them as 70-year-old Melody Bledsoe, 5-year-old James Roberts, and 4-year-old Emily Roberts. The blaze claimed the lives of two firefighters earlier in the week, and tens of thousands of people evacuated their homes and sought refuge in shelters. President Donald Trump issued an emergency declaration for the state Saturday, allowing affected counties to access federal aid.

An explosive wildfire is wreaking death and destruction on Northern California communities. The so-called Carr Fire has killed a bulldozer operator and a firefighter, burned three more firefighters, destroyed dozens of homes, and forced thousands of terrified residents to flee the towns of Shasta and Keswick, and the more populated city of Redding. The fire is “taking down everything in its path,” California Department of Forestry and Fire Protection (Cal Fire) spokesman Scott McLean said.

Residents in central Iowa had little to no warning Thursday before tornadoes ripped through the region. The twisters leveled buildings in the cities of Bondurant, Marshalltown, and Pella, injuring at least 17 people. The tornadoes formed suddenly, surprising weather forecasters and residents. Marshalltown’s only hospital was damaged, and patients were transferred to health facilities in Waterloo and Grundy Center. The storm also blew off the cupola of Marshalltown’s historic courthouse.

A flying blob of molten rock landed on a tour boat in Hawaii on Monday, injuring 23 people. One woman was flown to Honolulu in serious condition with a broken femur, and 22 others were treated at a hospital on the Big Island for minor scrapes and burns. The tour boat ventured to within 250 yards of where a lava flow from the Kilauea volcano enters the ocean. Explosions can occur when the molten rock comes in contact with the cool seawater, sending rocks and lava into the air.

The Ferguson fire in Mariposa County, Calif., has claimed the life of one firefighter and threatens Yosemite National Park. The fire covered 4,000 acres on Sunday and by Monday had devoured more than 9,000 acres. The park remains open to visitors for now, though one main entrance is closed. Firefighter Braden Varney died Saturday when his bulldozer tumbled down a canyon while plowing a fire line. Pacific Gas and Electric shut off power for the area, hoping to reduce fire risk. Some say sparks from the company’s power lines were responsible for at least three wildfires last fall.

Raging wildfires in Northern California are again forcing thousands of residents to flee. A fire about 100 miles northwest of Sacramento has devoured more than 20 homes and buildings since Saturday. Officials say the blaze threatens more homes in Lake County, which has been ravaged by fire the past few years. Gov. Jerry Brown declared a state of emergency there Monday. CalFire Capt. Jordan Motta said more than 250 firefighters were battling the blaze. Officials have not yet determined a cause for any of the fires.

Emergency management officials in Hawaii began allowing some residents to return to their homes on the Big Island as the Kilauea volcano settled into a more predictable pattern. The volcano began spewing lava from vents in the ground at the beginning of May.