UPDATE, Oct. 9, 6:36 p.m.: With strong winds yet to kick up as of Wednesday evening, PG&E was able to restore power to 44,000 customers in the North Bay and Sierra foothills. The utility said it was still monitoring weather conditions for the East Bay and South Bay and hadn't yet decided the timing of shut-offs in those areas. Read the latest here.

Even if you woke up with power Wednesday morning, your house may still end up in the dark by day's end. Pacific Gas & Electric is shutting off power around California in phases, depending on location and weather conditions, in hopes of reducing fire danger during forecasted high winds and dry heat.

PG&E plans to shut off power to 800,000 customers in Northern and Central California.

The first phase of 513,000 customers had their power shut off just after midnight early Wednesday morning. Those customers include households and businesses in Amador, Butte, Calaveras, Colusa, El Dorado, Glenn, Humboldt, Lake, Marin, Mendocino, Napa, Nevada, Placer, Plumas, Shasta, Sierra, Solano, Sonoma, Tehama, Trinity, Yolo and Yuba counties, according to PG&E.

Four Bay Area counties are included in the second phase of shut-offs, which was scheduled to start at noon and affect about 234,000 more customers. At 12:30 p.m., PG&E tweeted an update saying it would instead take place "later this afternoon and into early evening." The utility did not offer a more specific timeline, though Contra Costa County and Alameda County officials started sharing the news that shut-offs in their area were delayed to 8 p.m. Wednesday.

The second phase of power outages will hit Alameda, Alpine, Contra Costa, Mariposa, San Joaquin, San Mateo and Santa Clara counties, as well as some additional parts of Mendocino and Calaveras counties that weren't turned off Wednesday morning.

A third, much smaller phase of shutoffs could happen in the "southernmost portions of PG&E's service area," according to the utility, but specific locations have not yet been determined or announced. The third shutoff would affect an additional 42,000 customers.

Just because your neighbors lost power two streets over doesn't necessarily mean you will. The shut0ff phases are scheduled by region, not neighborhood by neighborhood.

PG&E said it would communicate with affected customers directly via automated calls, texts and emails. Not every customer in the affected counties will be without power; PG&E created a map of affected areas, which we've embedded below.

The blue areas on this map show where PG&E has planned outages for Wednesday, Oct. 9, 2019.

According to KTVU, one PG&E customer usually covers three people on average, meaning millions could be left without power this week.

FULL PG&E SHUTOFF COVERAGE:

- Map shows Bay Area neighborhoods that will be without power

- PG&E map down? Here's an interactive NorCal power shutoff map that actually works

- Essentials to buy for PG&E's planned power outage

- Here's what you should (and shouldn't) do during a power outage

- Cal, Bay Area schools announce canceled classes, closure

- UPDATE: 2 Bay Area tunnels expected to remain open

Alix Martichoux is an SFGate digital editor. Read her latest stories and send her news tips at [email protected]