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Thunderstorm threaten Sierra this weekend

While California remains mostly dry, higher elevations could get some rain this weekend from thunderstorms.

CALIFORNIA, USA — Northern California is moving into cooler conditions for the weekend, but a thunderstorm threat emerges for the higher elevations.

Starting Friday, most Valley temperatures should see highs move into the 80s. This is a change from recent temperatures as most locations have been well above May average temperatures with early season fire risk.

The fire risk does come back for far Northern California and Southern Oregon with a Red Flag Warning. The area will see dry conditions and wind, but also the threat of thunderstorms producing lightning and not much rain. Lightning is a major source of wildfire ignition if the conditions line up.

On Saturday and Sunday in the Valley, temperatures will continue to see highs in the low to mid 80s, but the thunderstorm threat begins to move to other portions of the Sierra. Areas in the northern and southern Sierra will see afternoon thunderstorms and showers.

Often, these storms occur between 1 - 8 p.m. as the clouds build and any thunderstorms can have gusty winds, rain, hail, heavy rain and lighting. If some of these thunderstorms drift to drier locations at lower elevations, we could see dry lighting and a fire risk.

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