St. Mary Parish, Louisiana tornado history

25 tornadoes recorded in or across St. Mary Parish from 1952 to 2018, 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. Mary Parish

The Storm Prediction Center records 25 tornadoes whose paths touched St. Mary Parish, Louisiana between 1952 and 2018. None of them is recorded as having killed anyone. The busiest month is September, with 6 tornadoes. The strongest was an F3 on 17 March 1970. The most recent was on 14 April 2018.

  • 25tornadoes
  • 0deaths
  • 26injuries
  • 450per 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. Mary Parish?

RatingTornadoesShare
F0 / EF0832%
F1 / EF11352%
F2 / EF2312%
F3 / EF314%
F4 / EF400%
F5 / EF500%
Unknown rating00%

St. Mary Parish tornadoes over time

Tornadoes by decade
Bar chart of tornadoes by period. The most is 7 in 2010s.1950s11960s31970s51980s31990s52000s12010s7

The 2010s only run to 2018, so that bar is for a shorter period. The record starts in 1950.

Show the numbers
PeriodCount
1950s1
1960s3
1970s5
1980s3
1990s5
2000s1
2010s7
Tornadoes by month
Bar chart of tornadoes by period. The most is 6 in Sep.Jan1Feb1Mar3Apr3May2Jun4Jul3Aug0Sep6Oct1Nov1Dec0
Show the numbers
PeriodCount
Jan1
Feb1
Mar3
Apr3
May2
Jun4
Jul3
Aug0
Sep6
Oct1
Nov1
Dec0

Records for St. Mary Parish

  • Strongest: Louisiana tornado17 March 1970, F3, 2 injuries, 1 mile long
  • Longest path: Louisiana tornado4 April 1952, F2, 3 injuries, 6.4 miles long
  • Most recent: Louisiana tornado14 April 2018, EF0, 0.3 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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