California, 2022

Heat and Dense Fog in California, April 6 to 8, 2022

April 6 to 8, 2022 · NWS SGX · 12 events in 6 counties and zones

Several days of record heat occurred across inland areas from April 6 to 9. Patchy dense fog was reported along coastal areas on the morning of April 7.

Where it happened

Every event with a place to put it; 12 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

Open the live radar over this ground

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
12

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 SGX wrote it up.

Several days of record heat occurred across inland areas from April 6 to 9. Patchy dense fog was reported along coastal areas on the morning of April 7.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Diego, CA wrote its last area forecast discussion before the first event at Apr 5, 7:56 PM PST, 4 hours 4 minutes earlier.

Area forecast discussion, Apr 5, 7:56 PM PST, 4 hours 4 minutes before
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The radar

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

Open the radar archive at this moment

Event by event

8 heat, 4 dense fog. Local standard time, as filed.

Heat, Orange County Inland

When
April 6, 12:00 AM PST to 11:59 PM PST
Where
Orange County Inland forecast zone
Reported by
ASOS
Coordinates
33.677, -117.776 (the zone’s center; the record gives no point)

Anaheim reported a high temperature of 96 degrees on April 6, breaking the previous record of 91 set in 2005.

Dense Fog, San Diego County Coastal Areas

When
April 6, 11:00 PM PST to April 7, 3:00 AM PST
Where
San Diego County Coastal Areas forecast zone
Reported by
ASOS
Coordinates
33.028, -116.770 (the zone’s center; the record gives no point)

Carlsbad Airport reported dense fog with visibility 1/4 of less between midnight and 4 AM.

Dense Fog, Orange County Inland

When
April 6, 11:00 PM PST to April 7, 6:00 AM PST
Where
Orange County Inland forecast zone
Reported by
ASOS
Coordinates
33.677, -117.776 (the zone’s center; the record gives no point)

John Wayne Airport (KSNA) reported dense fog with visibility of 1/4 mile or less between midnight and 7 AM.

Heat, Orange County Inland

When
April 7, 12:00 AM PST to 11:59 PM PST
Where
Orange County Inland forecast zone
Reported by
ASOS
Coordinates
33.677, -117.776 (the zone’s center; the record gives no point)

Santa Ana record a high temperature of 99 degrees, tying the previous record of 99 set in 1989.

Heat, San Diego County Valleys

When
April 7, 12:00 AM PST to 11:59 PM PST
Where
San Diego County Valleys forecast zone
Reported by
ASOS
Coordinates
33.028, -116.770 (the zone’s center; the record gives no point)

Chula Vista reported a high temperature of 91 degrees, breaking the old record of 89 degrees set in 1989.

El Cajon reported a high temperature of 97 degrees, breaking the old record of 95 degrees set in 1899.

Dense Fog, San Diego County Coastal Areas

When
April 7, 1:00 AM PST to 3:00 AM PST
Where
San Diego County Coastal Areas forecast zone
Reported by
ASOS
Coordinates
33.028, -116.770 (the zone’s center; the record gives no point)

San Diego International Airport reported dense fog with visibility 1/4 mile or less between 2 AM and 4 AM.

Dense Fog, Orange County Coastal

When
April 7, 4:45 AM PST
Where
Orange County Coastal forecast zone
Reported by
Trained Spotter
Coordinates
33.677, -117.776 (the zone’s center; the record gives no point)

Trained spotter reports dense fog with visibility of 1/4 mile or less in Huntington Beach at 5:45 AM.

Heat, Orange County Inland

When
April 8, 12:00 AM PST to 11:59 PM PST
Where
Orange County Inland forecast zone
Reported by
ASOS
Coordinates
33.677, -117.776 (the zone’s center; the record gives no point)

Anaheim recorded a high temperature of 106 degrees, breaking the old record of 96 set in 2014.

Santa Ana recorded a high temperature of 103 degrees, breaking the old record of 94 set in 2014.

Heat, San Diego County Coastal Areas

When
April 8, 12:00 AM PST to 11:59 PM PST
Where
San Diego County Coastal Areas forecast zone
Reported by
ASOS
Coordinates
33.028, -116.770 (the zone’s center; the record gives no point)

San Diego recorded a high temperature of 95 degrees, breaking the old record of 87 set in 2014.

Oceanside Harbor recorded a high temperature of 84 degrees, breaking the old record of 80 set in 1968.

Vista recorded a high temperature of 96 degrees, breaking the old record of 94 set in 1989.

Heat, San Diego County Valleys

When
April 8, 12:00 AM PST to 11:59 PM PST
Where
San Diego County Valleys forecast zone
Reported by
ASOS
Coordinates
33.028, -116.770 (the zone’s center; the record gives no point)

Chula Vista recorded a high temperature of 97 degrees, breaking the old record of 87 set in 2014.

Escondido recorded a high temperature of 102 degrees, breaking the old record of 95 set in 1989.

El Cajon recorded a high temperature of 99 degrees, tying the old record of 99 set in 1989.

Heat, San Bernardino and Riverside County Valleys - the Inland Empire

When
April 8, 12:00 AM PST to 11:59 PM PST
Where
San Bernardino and Riverside County Valleys - the Inland Empire forecast zone
Reported by
ASOS
Coordinates
34.293, -116.086 (the zone’s center; the record gives no point)

San Jacinto recorded a high temperature of 96 degrees, tying the old record of 96 set in 1989.

Heat, Riverside County Mountains

When
April 8, 12:00 AM PST to 11:59 PM PST
Where
Riverside County Mountains forecast zone
Reported by
ASOS
Coordinates
33.744, -115.994 (the zone’s center; the record gives no point)

Idyllwild recorded a high temperature of 84 degrees, breaking the old record of 81 set in 1989.

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.
Dense Fog
Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.

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, April 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 2026-10-01. Each event’s entry at NCEI: 1024057, 1024078, 1024079, 1024062, 1024065, 1024076, 1024077, 1024067, 1024068, 1024070, 1024073, 1024075.