Tornado History Map

St. Tammany Parish, Louisiana tornado history

78 tornadoes recorded in or across St. Tammany Parish from 1957 to 2025, 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 St. Tammany Parish

The Storm Prediction Center records 78 tornadoes whose paths touched St. Tammany Parish, Louisiana between 1957 and 2025. None of them is recorded as having killed anyone. The busiest month is April, with 16 tornadoes. The strongest was an EF3 on 26 May 2011. The most recent was on 15 March 2025.

  • 78tornadoes
  • 0deaths
  • 58injuries
  • 923per 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 St. Tammany Parish?

RatingTornadoesShare
F0 / EF03444%
F1 / EF13342%
F2 / EF21013%
F3 / EF311%
F4 / EF400%
F5 / EF500%
Unknown rating00%

St. Tammany Parish tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 23 in 2020s.1950s11960s21970s31980s101990s92000s132010s172020s23

The 2020s only run to 2025, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s1
1960s2
1970s3
1980s10
1990s9
2000s13
2010s17
2020s23
Tornadoes by month
Bar chart of tornadoes by period. The most is 16 in Apr.Jan2Feb3Mar11Apr16May8Jun0Jul2Aug6Sep5Oct7Nov11Dec7
Show the numbers
PeriodCount
Jan2
Feb3
Mar11
Apr16
May8
Jun0
Jul2
Aug6
Sep5
Oct7
Nov11
Dec7

Records for St. Tammany Parish

  • Strongest: Louisiana tornado26 May 2011, EF3, 4 injuries, 6.1 miles long
  • Longest path: Louisiana tornado7 February 2017, EF2, 3 injuries, 23.1 miles long
  • Most recent: Louisiana tornado15 March 2025, EF1, 7.7 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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