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NBC Bay Area meteorologist Vianey Arana explains how lightning forms and why it struck the Bay Area over the weekend.

Meteorologist Vianey Arana has your Microclimate Forecast and the latest on the heat wave sweeping the region.

Meteorologist Vianey Arana has your Microclimate Forecast and provides the latest on the heat wave and Red Flag Warning.

Dangerous heat continues this weekend with our Heat Warning in effect. Vianey Arana has your microclimate forecast.

Meteorologist Kari Hall has details on the end of seasonable weather with hot temperatures in the weekend forecast.

Meteorologist Kari Hall has details on dense fog near the coast and a Bay Area cool down.

More clouds near the bay and coast this morning but do expect plenty of sunshine by late morning and even warmer afternoon temperatures.

The pattern of low clouds fog and local drizzle for the morning will continue into early next week, with coast and bay temperatures remaining mild mostly 60s and 70s while valleys climb into the 80s and low 90s. Rob Mayeda has more in your Microclimate Forecast.

Areas of low clouds with drizzle will be the late night and morning trend around the Bay Area as our cooling trend kicks in. Temps today should be about 5-10 degrees cooler inland with 60s to low 70s from the coast to inner bay with mostly 80s inland. Temps will likely drop a little more Monday-Wednesday as the...

Areas of low clouds and fog will start the day with some local areas of drizzle, clearing skies inland with 80s and 90s for the East Bay and South Bay valleys. We should begin to see more low clouds and a stronger sea breeze to finish the weekend leading to a cooling trend through the middle of next week.

Some areas of the Bay Area will see gusty winds, but high temperatures will remain even reaching triple digits in some areas. Vianey Arana tracks your microclimate weather.

Temps will be turning hotter just in time for Fourth of July on Saturday with valleys seeing 90s and bayside temperatures in the 70s and 80s. Rob Mayeda provides your Microclimate Forecast.

It will be heating up this weekend. Chief Meteorologist Jeff Ranieri has more on where 90s are possible. Plus, the latest path of Hurricane Dorian in your Microclimate Forecast.