California, 2022

Heat in California, June 10 to 11, 2022

June 10 to 11, 2022 · NWS MTR · 6 events in 6 counties and zones

A 590 DAM ridge at 500 mb built over CA Thursday June 9 into Friday June 10, leading to rapid warming of the airmass and daytime surface temperatures reaching into the 90s to over 100 degrees over a large swath of the state away from the coast. A heat advisory was issued covering interior portions (mountains and valleys) of the SF Bay Area and Central Coast for June 10 from 11 AM until 10 PM.

Where it happened

Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
6

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MTR wrote it up.

A 590 DAM ridge at 500 mb built over CA Thursday June 9 into Friday June 10, leading to rapid warming of the airmass and daytime surface temperatures reaching into the 90s to over 100 degrees over a large swath of the state away from the coast. A heat advisory was issued covering interior portions (mountains and valleys) of the SF Bay Area and Central Coast for June 10 from 11 AM until 10 PM.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

6 heat. Local standard time, as filed.

Heat, North Bay Interior Valleys

When
June 10, 3:00 PM PST to 4:00 PM PST
Where
North Bay Interior Valleys forecast zone
Reported by
ASOS
Coordinates
38.362, -122.667 (the zone’s center; the record gives no point)

Sonoma County Airport reached a high of 102 degrees.

Heat, East Bay Interior Valleys

When
June 10, 3:00 PM PST to June 11, 8:00 AM PST
Where
East Bay Interior Valleys forecast zone
Reported by
ASOS
Coordinates
37.787, -121.934 (the zone’s center; the record gives no point)

Concord and Livermore airports reached a high of 100 degrees on June 10. The minimum temperature on June 11 was 70 degrees at Concord.

Heat, Mountains of San Benito County and Interior Monterey County Including Pinnacles National Park

When
June 10, 3:00 PM PST to 4:00 PM PST
Where
Mountains of San Benito County and Interior Monterey County Including Pinnacles National Park forecast zone
Reported by
RAWS
Coordinates
36.423, -121.192 (the zone’s center; the record gives no point)

Pinnacles NP reached a high of 103 degrees. Fort Hunter Liggett reached 105 degrees.

Heat, Southern Monterey Bay and Big Sur Coast

When
June 10, 3:00 PM PST to 4:00 PM PST
Where
Southern Monterey Bay and Big Sur Coast forecast zone
Reported by
RAWS
Coordinates
36.240, -121.309 (the zone’s center; the record gives no point)

Big Sur station reached a high of 103 degrees.

Heat, Southern Salinas Valley / Arroyo Seco / Lake San Antonio

When
June 10, 3:00 PM PST to 4:00 PM PST
Where
Southern Salinas Valley / Arroyo Seco / Lake San Antonio forecast zone
Reported by
COOP Observer
Coordinates
36.240, -121.309 (the zone’s center; the record gives no point)

King City reached a high of 104 degrees.

Heat, Santa Clara Valley Including San Jose

When
June 10, 3:00 PM PST to 4:00 PM PST
Where
Santa Clara Valley Including San Jose forecast zone
Reported by
COOP Observer
Coordinates
37.233, -121.696 (the zone’s center; the record gives no point)

Gilroy reached a high of 101 degrees.

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in California in 2022Every state in 2022This day in weather historyWarnings in California, June 2022

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-30. Each event’s entry at NCEI: 1042954, 1043003, 1043006, 1043008, 1043011, 1043017.