4 years ago
321 
(CNN)One of the multiple wildfires burning in California was started during a gender-reveal party, officials said.
A "smoke-generating pyrotechnic device" used at the party sparked the El Dorado Fire in San Bernardino County, Cal Fire said in a press release.
The fire started Saturday at 10:23 a.m. PT (1:23 p.m. ET) at the El Dorado Ranch Park in Yucaipa and spread from the park north on to Yucaipa Ridge, according to the release.
It has since grown to 8,600 acres as of Monday and is just 7% contained, according to the San Bernardino National Forest.
Because of the fire, the communities of Oak Glen, Yucaipa Ridge, Mountain Home Village and Forest Falls have been ordered to evacuate. An evacuation warning is in effect for the Yucaipa bench area, and Yucaipa Community Center is being used as a temporary evacuation facility, according to Cal Fire.
More than 600 personnel have been deployed to the fire, along with 60 engines, six aircraft and six helicopters, according to the website.
The El Dorado fire continued burning overnight thanks to hot and dry weather. On Monday, the fire made a significant push downslope as it impacted structures in its path, according to the San Bernardino National Forest.
The national forest will temporarily close Monday evening "to all public use due to the threat from high fire danger and firefighting resources being spread stretched to the limit," according to the US Forest Service.
The seven other national forests in Southern and Central California will close to the public this evening, due to the "monumental fire threat," according to a press release from the U.S. Forest Service.
No charges have been announced in the El Dorado blaze.
A gender reveal party is an Instagram-friendly event held during pregnancy in which the parents "reveal" the baby's sex to friends and family. That reveal can sometimes take the form of an explosion in the color of blue for a boy or pink for a girl.
In 2017, a gender reveal party in Arizona sparked a wildfire that burned nearly 47,000 acres and caused more than $8 million in damage.
The expectant father, an off-duty US Border Patrol agent, had packed the target with the explosive Tannerite and shot it with a high-powered rifle. He pleaded guilty in 2018 to a misdemeanor and was sentenced to five years' probation and ordered to pay almost $8.2 million in restitution.
CNN's Eric Levenson, Raja Razek and Jaide Timm-Garcia contributed to this report.
