The wildfire is made up of a cluster of 20 separate lightning-sparked fires called the SCU Lightning complex threatening about 1,400 structures in rugged terrain with dense brush.
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The Merced County Sheriff's Office says the fire may not make it to Merced County, but they've issued the warning to keep residents informed of the potential for danger.
The warning is for the area:
The warning is not a mandatory evacuation, but they are urging residents to prepare for one if conditions change.
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In the event of an evacuation, the temporary evacuation point will be the Los Banos Fairgrounds located at 403 F Street Los Banos CA.
Anyone in need of temporary shelter due to evacuation can contact 209-385-3000 ext. 5455.
For questions regarding the SCU Lighting Complex Fire, you can call CAL FIRE at 669-247-7431 or visit the CALFIre Incident Website.
(This story contains inputs from the Associated Press)