Revised: This order is now a warning and is no longer mandatory. Cal Fire air drops were helpful in mitigating the threat at this time. Stay tuned as conditions can change. https://t.co/1Z35IjQlXe— Alameda County Sheriff (@ACSOSheriffs) August 17, 2020
Around 1:15 p.m., Alameda County fire and sheriff's officials downgraded the mandatory order to a warning after CAL FIRE performed air drops which were helpful in mitigating the growing blaze.
Evacuees were being sent to the Residence Inn at 5200 Wolf House Road in Livermore. Officials say conditions can change and residents should stay prepared.
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Firefighters with the Alameda County Fire Department, Cal Fire and departments in Oakland, Fremont and Livermore-Pleasanton began battling the blaze, called the Marsh complex, on Sunday.
As of 8:25 a.m. Monday, 1,775 acres had been burned, according to Cal Fire.
Authorities believe weekend lightning strikes sparked the fires, which were first reported around 1:30 p.m. Sunday near the reservoir.
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The fires forced the evacuation of about 10 homes along Welch Creek Road, located about four miles southeast of Sunol and one mile north of the Little Yosemite Trail area.
Updated information about wildfires across the state can be found here.
Stay with ABC7 News for the latest details on this developing story.
Bay City News contributed to this report.