MOUNTAIN AREA – Residents and visitors may soon see stormy skies, as a hazardous weather outlook and flash flood warning has been issued for the higher elevations of the southern Sierra Nevada, with the prospect of isolated thunderstorms continuing late Monday night and possibly through Tuesday.
The National Weather Service reports from Hanford that moisture from tropical storm Dolores in the eastern Pacific will continue to spread northward into the southern Sierra Nevada through Monday evening.
Slow moving thunderstorms with heavy downpours will bring the potential for flash flooding, including mud and debris flows, to the watch area. Recent burn scars will be vulnerable to flash flooding.
Hanford says scattered thunderstorms are predicted from Yosemite to Kings Canyon today through tonight.
The storm could bring dangerous lightning and erratic gusty winds. Brief heavy rain may cause localized flooding in the higher Sierra terrain. There’s currently a slight possibility the thunderstorms could continue even through Tuesday night.
In addition to the hazardous weather conditions, a flash flood watch is in effect through Monday night with flooding thought to be possible in the same area, from Yosemite to Kings Canyon, along the Sierra Nevada. This is expected to include Yosemite valley.
In the Oakhurst area, the high temperature on Sunday, July 19, is expected to be about 90 degrees, with temperatures on Monday dropping down to around 83 degrees, with lows in the mid-sixties. A 20 percent chance of rain is predicted for Oakhurst Sunday through Tuesday.