SAN FRANCISCO (KRON) – The worst heat wave of the year is here and KRON4 is providing live team coverage all (the long) weekend.

Wednesday, Sept. 7

6 a.m. – BART single-tracking; expect delays

BART had to stop service between the Pleasant Hill and Concord stations yesterday, KRON4’s Sara Stinson reports, in order to prevent a potential train derailment, such as happened in June. What will service look like today? Click below:

5:45 a.m. – Temps lower, for now

While inland highs are projected to be more than 10 degrees less than yesterday they will still be over 100 degrees, and the respite will be temporary. Watch today’s forecast:

5 a.m. – Dublin Unified School District moves to half-days

Novato kids aren’t the only ones with some time off; the Dublin Unified School District has announced students can go home at 12:30 p.m. today due to the heat and the potential for rolling blackouts.

Yesterday, the district texted parents without warning telling them school is letting out — forcing them to come and pick their kids up.

The district doesn’t want any one caught off guard which is they made the decision yesterday afternoon letting parents know the plan for the rest of the week.

The district also went ahead and cancelled all outdoor activities during this time, also cancelled tomorrow’s games and encourage teams to practice before school or after 7 p.m.

Tuesday, Sept. 6

4:39 p.m. – 21,000+ customers lose power due to heat-related outage

Pacific Gas & Electric Co. is reporting massive power outages across the Bay Area as the region sees high temperatures. Click here for the latest UPDATE.

4:35 p.m. – PG&E tells 525,000 customers to prepare for rolling blackouts.

To find out if you could be affected, click HERE

3:45 p.m. – City of South San Francisco to turn off Sign Hill Tree to conserve energy

The City of South San Francisco will be turning off its famous Sign Hill Tree, currently lit up for Childhood Cancer Awareness Month, in order to help conserve energy, the city announced in a tweet Tuesday. The sign will not by lit between 4 p.m. and 9 p.m. “until we get through this heat wave” the city tweeted.

3:17 p.m. – Alameda Municipal Power urges customers to conserve energy

AMP is experiencing very high electric demand due to extreme heat, the agency advised in a statement. Customers along Grand Street will be moved from one substation to another at around 3:15 p.m., resulting in residents losing power for approximately 10 minutes the statement advises. “This is NOT associated with the state’s energy demands and is NOT part of a rotating outage,” AMP advises.

Noon – BART trains going more slowly to avoid derailing

BART trains are travelling at reduced speeds because the heat can lead to derailments. To read how, and find out what to expect when taking public transit, click below:

10:20 a.m. – Tuesday forecast to be even hotter than Monday

Temperatures in many parts of the Bay Area could be even hotter Tuesday than on Monday, when we say record-breaking temps in Livermore and other parts of the Bay Area. Tuesday looks to be worse, according to KRON4 Meteorologist, John Shrable, who warns of “dangerous” temperatures that will break records across much of the region.

Bay Area temperatures to watch out for Tuesday include:

  • 119 in Walnut Creek and Danville
  • 110 in Cupertino
  • 117 in Pleasanton
  • 117 in Vacaville
  • 90 in San Francisco

For today’s weather forecast, click HERE

9 a.m. – Today is the seventh flex alert in a row

The state is urging energy conservation today from 4-9 p.m. to avoid overloading the electrical grid. Check out more on the flex alert — the seventh in-a-row — below:

5 a.m. – Novato Unified moving some schools to half-day schedules

The Novato Unified School District is moving some schools to a half-day schedule due to the heat wave. KRON4’s Sara Stinson reports.

Monday, Sept. 5

6:55 p.m. – Temporary emergency power generators used for first time

Cal ISO requested that four temporary emergency power generators be activated in Roseville and Yuba City, the state’s Department of Water Resources said. The generators can provide up to 120 megawatts of electricity to the power grid — enough to power 120,000 homes.

5:10 p.m. – Outages affecting several cities across Bay Area

Power outages affected communities across the Bay Area on Monday afternoon. Cities like Morgan Hill, Napa and Pleasant Hill have had outages affecting more than 2,000 PG&E customers. For the full story, click HERE.

3:33 p.m. – “Highest likelihood of rotating outages we have seen” this summer, PG&E tweets

In a tweet, PG&E warned of an energy deficit between 2,000 and 4,000 megawatts for Monday, increasing the likelihood of rotating outages.

2:25 p.m. – Triple-digits across the East Bay today as heat wave intensifies

Temps on Monday will top 110 in Antioch, 110 in Livermore and 110 in Concord. Here’s why it’s likely to get worse before it gets better: STORY

2:00 p.m. – “If you are not already at Stinson Beach … We’d suggest not going,” sheriff warns of crowded beaches

The Marin County Sheriff’s office is advising people who aren’t already at Stinson Beach not to go as of midday Monday. STORY

1:00 p.m. – BART announces delay on Antioch Line due to warm weather conditions

8 a.m. – Sixth-consecutive flex alert

For the sixth consecutive day, the state has issued a flex alert, which is a request people conserve energy between 4 p.m. and 10 p.m. to avoid a potential overload of the power grid. KRON4’s Will Tran reports on ways you can save energy.

Sunday, Sept. 4

2:54 p.m. Oakland Fire Department rescued a six-month-old baby from inside locked car. Temperatures in the area were up to 92 degrees.

Photo courtesy of Oakland Fire Department

12:00 p.m. East Bay Municipality District has closed all East Bay Trails for Labor Day weekend due to soaring temperatures. For more information on when they should reopen, check the EBMD website.

10:00 a.m. The Office of the Governor released a list of cooling centers across the state in partnership with the Office of Emergency Services. To see a list of cooling centers in your area, visit the site.

Saturday, Sept. 3

4:00 p.m. A statewide Flex Alert issued by California ISO begins this afternoon and lasts until 9 p.m. Residents across the state are asked to conserve energy to avoid overwhelming the power grid.

9:00 a.m. Sunnyvale DPS shares hours that the Sunnyvale Library will be open so people can cool off.

7:00 a.m. San Francisco Fire Department announced that pollen levels will be high across the area due to rising temperatures and strong winds. Pollen count is expected to be elevated through midnight.

Friday, Sept. 2

2:35 p.m. – Solano County opens cooling centers

Solano County announced on Friday it would be opening cooling centers in response to the Excessive Heat Warning issued by the National Weather Service earlier this week. Cooling centers will be opened in the cities of Benicia, Fairfield, Vallejo, Rio Vista, Dixon and Vacaville. Due to COVID-19, the use of masks in cooling centers is “strongly recommended” according to a release from the county. For a comprehensive list of cooling centers, visit: Solano County – Cooling Centers

8:37 a.m. San Francisco not under NWS heat advisory

The City and County of San Francisco is not under the National Weather Service’s extensive heat advisory — and looking at these images, it’s easy to see why:

6 a.m. – Some Walnut Creek closed outdoor public spaces still open today

Many parks in the East Bay will still be open today, but come Sunday and Monday they will be closed because of high heat and fire danger. These include Wildcat Canyon, Tilden, Huckleberry and Anthony Chabot, except the campground. KRON4’s Will Tran has more.

5:45 a.m. – Wine Country deals with a hot harvest with early morning grape-picking

In the bid to beat the heat grape picking in Wine Country starts at 2 a.m. — when it’s still cool enough. Otherwise, the grapes might dehydrate. KRON4’s James Fletcher has more this morning:

4:05 a.m. – Student athletics have to adjust due to heat

The heat wave is coinciding with students returning to school. For student athletes this poses a particular challenge and KRON4’s Dan Thorn reports on how teams are adjusting.

Thursday, Sept. 1

5:25 p.m. – Walnut Creek adds to list of cooling centers as heat wave approaches

The list of options for people in Contra Costa County who need to beat the heat this weekend is growing. Walnut Creek will open Tice Gym near Rossmoor as a cooling center from 9 a.m. to 8 p.m. Friday, 7 a.m. to 10:30 p.m. Saturday, and noon to 7 p.m. Sunday. Read more here.

5 p.m. – Playground equipment in Livermore reaches 150 degrees

KRON4’s Philippe Djegal was at a playground in Livermore where a touch of the equipment can burn your skin. Swings were as hot as 118 degrees, and the seesaw registered at 153 degrees.

“The swings were good, but (my daughter) said the slides were pretty hot,” said mother Leah Lusk who was at Almond Park in Livermore before noon.

3:00 p.m. – NWS upgrades some areas from Heat Watch to a Heat Advisory

The Weather Service now dropped the heat watch for the coast and replaced it with a Heat Advisory for the Marin Coastal Range and the SF Bay Shoreline. 

2:35 p.m. – BART Antioch Line delayed due to heat

BART is experiencing a 10-minute delay on the Antioch Line in the Antioch and SFO directions due to the excessive heat conditions, the transit authority announced in a tweet. Earlier this year, a train derailed on the Antioch Line due to high heat.

2:15 p.m. – PG&E: No public safety power shutoffs this week

A PG&E representative told KRON4 there are no public safety power shutoffs planned for this week. Public safety power shutoffs are tired to wildfire conditions, which are triggered by factors other than just heat that include humidity and high winds. Current forecasts indicate no shutoffs, despite the sweltering heat gripping much of the Bay Area this week.

10:45 a.m. – Cooling centers open across the Bay Area

As the Bay Area enters the worst heat wave of the year, KRON4 has assembled a list of cooling centers where people can get a respite from the scorching temps. Find a cooling center near you.

10:10 a.m. – National Weather Service warns of dangerous heat over the holiday weekend

The NWS Bay Area has warned of an extended period of dangerous heat that will last into next week.

9:55 a.m. – Walnut Creek closes outdoor public spaces through Labor Day weekend

The City of Walnut Creek will be closing its Open Spaces through Labor Day weekend due to the Excessive Heat Warning going into effect, the city announced Wednesday in a tweet. The city’s open spaces, including Lime Ridge, Shell Ridges and Acalanes Ridge, will be closed through Sept. 6, when the warning is lifted, the tweet states. Read more here.

9 a.m. – Tips for staying say during dangerous heat

  • Drink plenty of water and beverages containing electrolytes, even if you aren’t thirsty
  • Avoid alcohol, caffeine or lots of sugar
  • Limit physical activity from 10 a.m.-3 p.m.
  • Wear light, loose-fitting cothing
  • Wear sunglasses and sunscreen
  • Check in on your family, friends and neighbors
  • Check your medications to see if you should stay out of heat while taking them; remember, stimulants will increase your body temperature

For more helpful info, read the story below:

6:32 a.m. – Tips for keeping kids safe outdoors during dangerous heat

  • Drinking plenty of water or sports drinks
  • Wearing lightweight, light-colored clothing
  • Avoiding outdoor activities between 10:00 a.m. and 4:00 p.m.
  • Using air conditioning and remaining in cool places during the day

For more info, read the story below:

6 a.m. – Cooling centers open in Morgan Hills

Cooling centers and libraries are stepping up across the Bay Area to not only keep people comfortable and — let’s face it — keep people alive when they are stuck inside their hot home.

The Morgan Hill cooling center, at the Centennial Recreation Center at 171 W. Edmundson Ave, will be open 5 a.m. to 9:30 p.m. on weekdays and 6:30 a.m. to 5 p.m. on weekends.

San Jose’s Camden Community Center at 3369 Union Ave. isn’t opening till Saturday. It will be open 1 pm. to 9 p.m.

In the East Bay there are cooling centers in Livermore, Dublin and Alameda, including the Dublin Senior Center at 7600 Amador Valley Blvd., which will be open from 9 a.m. to 4 p.m.