Tornado History Map

Merced County, California tornado history

18 tornadoes recorded in or across Merced County from 1955 to 2009, 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 Merced County

The Storm Prediction Center records 18 tornadoes whose paths touched Merced County, California between 1955 and 2009. None of them is recorded as having killed anyone. The busiest month is April, with 6 tornadoes. The strongest was an F1 on 1 April 1958. The most recent was on 9 February 2009.

  • 18tornadoes
  • 0deaths
  • 1injury
  • 93per 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 Merced County?

RatingTornadoesShare
F0 / EF01372%
F1 / EF1528%
F2 / EF200%
F3 / EF300%
F4 / EF400%
F5 / EF500%
Unknown rating00%

Merced County tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 7 in 2000s.1950s21960s11970s21980s11990s52000s7

The 2000s only run to 2009, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s2
1960s1
1970s2
1980s1
1990s5
2000s7
Tornadoes by month
Bar chart of tornadoes by period. The most is 6 in Apr.Jan0Feb3Mar5Apr6May0Jun0Jul0Aug0Sep0Oct0Nov2Dec2
Show the numbers
PeriodCount
Jan0
Feb3
Mar5
Apr6
May0
Jun0
Jul0
Aug0
Sep0
Oct0
Nov2
Dec2

Records for Merced County

  • Strongest: California tornado1 April 1958, F1, 2 miles long
  • Longest path: California tornado13 November 1997, F0, 3 miles long
  • Most recent: California tornado9 February 2009, EF0, 0.1 miles long

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

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