Tornado History Map

Alameda County, California tornado history

4 tornadoes recorded in or across Alameda County from 1980 to 1994, coloured by rating on the map.

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Years1950 to 2025
Rating (F or EF scale)

Shows tornadoes that started in, or crossed, the chosen state. To see how many have passed near you, search a town or ZIP code, or tap the map.

Key
  • F0 / EF0 Light damage
  • F1 / EF1 Moderate damage
  • F2 / EF2 Considerable damage
  • F3 / EF3 Severe damage
  • F4 / EF4 Devastating damage
  • F5 / EF5 Incredible damage
  • Unknown Not rated (2007 onwards)

How to read the lines. Each line is one tornado, drawn from where it started to where it ended, coloured and sized by its rating. A dot means the record has no end point. Tap a line for its details, or tap anywhere else to see how many tornadoes have passed nearby. Weaker tornadoes appear as you zoom in. Ratings use the Fujita (F) scale before 1 February 2007 and the Enhanced Fujita (EF) scale from then on.

Tornadoes in Alameda County

The Storm Prediction Center records 4 tornadoes whose paths touched Alameda County, California between 1980 and 1994. None of them is recorded as having killed anyone. The busiest month is January, with 1 tornadoes. The strongest was an F1 on 14 January 1980. The most recent was on 25 April 1994.

  • 4tornadoes
  • 0deaths
  • 1injury
  • 54per 10,000 sq mi of land

A tornado that crossed several counties counts in each one, so county counts add up to more than the state's.

How strong were the tornadoes in Alameda County?

RatingTornadoesShare
F0 / EF0375%
F1 / EF1125%
F2 / EF200%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Alameda County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 2 in 1980s.1980s21990s2

The 1990s only run to 1994, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1980s2
1990s2
Tornadoes by month
Bar chart of tornadoes by period. The most is 1 in Jan.Jan1Feb0Mar1Apr1May0Jun0Jul0Aug0Sep0Oct0Nov0Dec1
Show the numbers
PeriodCount
Jan1
Feb0
Mar1
Apr1
May0
Jun0
Jul0
Aug0
Sep0
Oct0
Nov0
Dec1

Records for Alameda County

  • Strongest: California tornado14 January 1980, F1, 1 injury, 0.3 miles long
  • Longest path and Most recent: California tornado25 April 1994, F0, 0.7 miles long

Many of these tornadoes killed or injured people. The numbers are the official record's, and they may be revised.

More in California

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