Severe Thunderstorm Warning until 02:45PM 
The National Weather Service in Hanford CA has issued a
* Severe Thunderstorm Warning for... Northwestern Mariposa County in central California... Southwestern Tuolumne County in northern California... Northeastern Merced County in central California...
* Until 245 PM PDT
* At 215 PM PDT, Doppler radar indicated a severe thunderstorm capable of producing damaging winds in excess of 60 mph. This storm was located 10 miles southwest of Smith Station, or 20 miles south of Sonora, and moving east northeast at 35 mph.
* Locations impacted include... Lake McClure.
* AFFECTED AREAS: MARIPOSA ... MERCED ... TUOLUMNE
Instructions:
Severe thunderstorms produce damaging winds, destructive hail, deadly lightning and very heavy rain. For your protection, move to an interior room on the lowest floor of your home or business. Heavy rains flood roads quickly so do not drive into areas where water covers the road. Doppler radar has indicated some weak rotation within this storm. Although a tornado is not immediately likely, if one is spotted, act quickly and move to a place of safety in a sturdy structure, such as a basement or small interior room. In addition to large hail and damaging winds, continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature`s leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.
Address/Location
Mariposa County Sheriff's Office
5099 Old Hwy N
Mariposa, CA 95338
Contact
Emergency: 9-1-1
Non-emergencies: 209-966-3615