- 12:30 PM Update -

The threat for severe thunderstorms today is greatest for the foothills and Sierra. A low-pressure system passing over the area will introduce the threat of severe weather. You couple that with some daytime heating and it will further destabilize the atmosphere.

So, what constitutes a severe thunderstorm? A storm that contains one or more of the following: hail one inch or greater, winds gusting in excess 58 mph, or a tornado.

The threat for severe weather remains in the forecast til 4pm for the foothills and until 10pm for the Sierra.

- 10 AM Update -

The Storm Prediction Center has put out the latest on the thunderstorm risk for the region and it has expanded. It now includes all of the valley, delta, Napa Valley, and inland for the East Bay. There is now a 'Marginal Risk' for areas of east of Auburn on I-80, for Placerville and areas east on highway 50 and this includes the Sierra and Lake Tahoe region. A marginal risk means that there is a threat for isolated severe weather; winds between 40-60 mph, hail up to 1" in diameter and a low tornado risk.

- 8:15 AM Update -

A welcomed sight for the area! We are getting some much needed thunderstorms that are producing heavy downpours. The thunderstorms are moving NNW and a majority of storms in the valley are north of Stockton. The foothills are seeing scattered showers and thunderstorms from Coulterville and north.

- 7 AM Update -

- 630 AM Update -

- 6 AM Update -

- 4:30 AM Update -

There's a chance of thunderstorms and showers today for parts of the valley.

Today also looks to be the coolest day of the next 10 days with high temperatures nearing 70°.

Meteorologist Rob Carlmark will have more on your forecast now until 7 AM on Morning Blend.