northern california ever. that flex alert was critical. we saw californians really respond. >> caliso is asking residents to download their flex alert app. that allows them to track energy supply and demand. >>> extreme heat is history. we've been talking about temperatures at or above is 100 degrees. take a look at the numbers. 101, 105 degrees. look what happened today. upper 70s to the lower 80s. not even 90-degree temperatures out there. cooldown, it has arrived. temperatures from this afternoon ranging from lower 60s to the 70s in san jose and santa rosa, 84- degrees. right now the fog is regrouping. a few patches sneaking into the bay. there's the cloud deck. this will expand in coverage for the overnight hours. as far as the wind speeds, have been picking up throughout the day. right now in fairfield, winds out of the west sustained 26 miles an hour. gusty winds out toward sfo. all the winds are sustained. over the past few days, shallow marine player keeping the fog and cool temperatures coastside. what is happening, deeper ma layer. cooling across the bay area. there's a w