(KRON) — Pacific Gas & Electric Co. is reporting massive power outages across the Bay Area as the region sees high temperatures. The North Bay, East Bay, and South Bay were hit hard by outages Monday afternoon, but by Tuesday morning things had started to let up.

The outages listed in this story are likely heat-related.

Wednesday, Sept. 7 at 11 a.m.

  • 2,638 PG&E customers without power in the South Bay
  • 981 PG&E customers without power in the East Bay
  • 2,653 PG&E customers without power in the North Bay
  • 71 PG&E customers without power on the Peninsula
  • 3 PG&E customers without power in San Francisco

Wednesday, Sept. 7 at 7:30 a.m.

  • 3,625 PG&E customers without power in the South Bay
  • 941 PG&E customers without power in the East Bay
  • 53 PG&E customers without power in the North Bay
  • 33 PG&E customers without power on the Peninsula
  • 0 PG&E customers without power in San Francisco

Tuesday, Sept. 6

5:20 p.m.

  • 25,971 PG&E customers without power in San Jose area (multiple outages)
  • 3,688 PG&E customers without power in Sunnyvale
  • 2,059 PG&E customers without power in Cupertino
  • 1,565 PG&E customers without power in Novato
  • 1,194 PG&E customers without power in Redwood City
  • 1,055 PG&E customers without power in Moraga/Lafayette

4:42 p.m.

Approximately 4,000 Pleasant Hill residents are without power due to a PG&E outage, the city confirmed on Twitter. Traffic signals along Contra Costa Boulevard at Viking and Golf Club Roads are out. Drivers are asked to treat these intersections as four-way stop signs.

As of 4 p.m. there are:

  • 1,177 affected PG&E customers in San Francisco
  • 646 affected PG&E customers on the Peninsula
  • 936 affected PG&E customers in the North Bay
  • 7,808 affected PG&E customers in the East Bay
  • 21,837 affected PG&E customers in the South Bay

As of 6 a.m. there are:

  • 4,597 outages in the East Bay (2,561 of which are in Livermore due to an underground equipment failure. A 3 p.m. restoration time is projected.),
  • 143 outages on the Peninsula,
  • Two outages in San Francisco,
  • 1,335 outages in the North Bay, and
  • 1,235 outages in the South Bay.

More than 20,000 customers across the Bay Area were without power late Monday. The largest outage, in Livermore, affected more than 5,000 people.

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A statewide Flex Alert was issued for Monday and extended through Tuesday amid an ongoing heat wave that’s seen an Excessive Heat Warning for much of the Bay Area extended into Thursday.

State power authorities have warned of the increased risk of blackouts amid what could prove to be record strain on the state’s power grid.

This is a developing story. Check back for updates.