California, 1996

Tornado in California, December 23, 1996

December 23, 1996 · NWS MTR · 1 event in 1 county or zone

This storm cut a 20 yard wide quartrer mile path of distruction through the north side of Napa. A jogger was slammed into a fence but reported only minor injuries.

Where it happened

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The toll

Deaths
0
Injuries
1
Property damage
$500
Crop damage
$500
Events
1

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.

This storm cut a 20 yard wide quartrer mile path of distruction through the north side of Napa. A jogger was slammed into a fence but reported only minor injuries. The storm was spotted by the Napa police.

The radar

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

Open the radar archive at this moment

Event by event

1 tornado. Local standard time, as filed.

Tornado, Sonoma

When
December 23, 11:30 AM PST to 11:32 AM PST
Where
Sonoma County, Sonoma to 20 mi E of Sonoma
Rating
F0
Path length
0.3 mi
Path width
20 yd
Injuries
1 direct, 0 indirect
Property damage
$500
Crop damage
$500
Coordinates
38.280, -122.080

What these are

Tornado
A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.

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

The same day elsewhere

More

Every storm in California in 1996Every state in 1996This day in weather historyThe tornado archive for California, 1996Warnings in California, December 1996

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 2026-09-24. Each event’s entry at NCEI: 5575574.