St. John the Baptist Parish weather alerts
There are no active weather alerts for St. John the Baptist Parish, LA right now.
Since 2016 the National Weather Service has issued about 1,275 alerts that included St. John the Baptist Parish, roughly 128 a year. The most common is the dense fog advisory (237 from 2016 to 2025). The last tornado warning was issued on August 27, 2026. 23 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
No warnings, watches or advisories include St. John the Baptist Parish at the moment. This page updates automatically when the National Weather Service issues one. Check neighboring Tangipahoa Parish, St. Charles Parish, Jefferson Parish, Lafourche Parish.
St. John the Baptist Parish alert history
Alert events that included St. John the Baptist Parish or its forecast zones, from the NWS warning archive.
| Alert type | 2016–2025 | 2026 | Last issued |
|---|---|---|---|
| Dense Fog Advisory | 237 | 25 | October 28, 2026 |
| Heat Advisory | 152 | 21 | September 7, 2026 |
| Severe Thunderstorm Warning | 129 | 17 | September 22, 2026 |
| Flood Advisory | 123 | 11 | October 4, 2026 |
| Wind Advisory | 92 | 4 | October 16, 2026 |
| Flood Watch | 80 | 5 | October 3, 2026 |
| Tornado Watch | 58 | 3 | June 18, 2026 |
| Coastal Flood Advisory | 55 | 5 | October 9, 2026 |
| Flash Flood Warning | 53 | 6 | July 5, 2026 |
| Extreme Heat Warning | 47 | 8 | August 21, 2026 |
| Tornado Warning | 39 | 3 | August 27, 2026 |
| Freeze Warning | 35 | 5 | February 24, 2026 |
| Extreme Heat Watch | 28 | 3 | August 17, 2026 |
| Flood Warning | 21 | 1 | July 5, 2026 |
| Severe Thunderstorm Watch | 19 | 1 | August 24, 2026 |
| Cold Weather Advisory | 17 | 0 | December 15, 2025 |
| Red Flag Warning | 13 | 3 | March 16, 2026 |
| Freeze Watch | 11 | 1 | February 2, 2026 |
| Tropical Storm Warning | 11 | 0 | September 9, 2024 |
| Coastal Flood Warning | 10 | 0 | June 19, 2024 |
| Winter Weather Advisory | 7 | 0 | January 15, 2024 |
| Hurricane Watch | 6 | 0 | September 9, 2024 |
| Storm Surge Warning | 6 | 0 | September 9, 2024 |
| Tropical Storm Watch | 6 | 1 | July 20, 2026 |
| High Wind Warning | 5 | 0 | March 4, 2025 |
| Hurricane Warning | 4 | 0 | August 27, 2021 |
| Fire Weather Watch | 4 | 0 | November 1, 2023 |
| Extreme Cold Watch | 2 | 2 | January 31, 2026 |
| High Wind Watch | 2 | 0 | March 4, 2025 |
| Extreme Cold Warning | 1 | 2 | January 31, 2026 |
| Winter Storm Watch | 1 | 0 | January 21, 2025 |
| Winter Storm Warning | 1 | 0 | January 21, 2025 |
Tornado history in St. John the Baptist Parish
23 tornadoes have been recorded in St. John the Baptist Parish since 1950, killing 2 people and injuring 83. That ranks 54 of 64 counties in Louisiana. The most recent was on June 6, 2019 (rated EF0).
Strongest tornadoes in St. John the Baptist Parish
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| December 6, 1983 | F4 | St. John the Baptist Parish | 7 mi | 200 yd | 0 | 25 |
| August 25, 1992 | F3 | St. John the Baptist Parish | 9 mi | 150 yd | 2 | 32 |
| February 23, 2016 | EF2 | St. John the Baptist Parish | 4.7 mi | 250 yd | 0 | 17 |
| November 22, 1961 | F2 | St. John the Baptist Parish | 2 mi | 50 yd | 0 | 3 |
| February 23, 2016 | EF1 | St. John the Baptist Parish | 3.2 mi | 250 yd | 0 | 0 |
Most recent tornadoes
| Date | Rating | County | Path length | Width | Deaths | Injuries |
|---|---|---|---|---|---|---|
| June 6, 2019 | EF0 | St. John the Baptist Parish | 8.5 mi | 100 yd | 0 | 0 |
| June 6, 2019 | EF0 | St. John the Baptist Parish | 4.6 mi | 30 yd | 0 | 0 |
| June 6, 2019 | EF0 | St. John the Baptist Parish | 1.9 mi | 60 yd | 0 | 0 |
| June 5, 2018 | EF0 | St. John the Baptist Parish | 3.4 mi | 100 yd | 0 | 0 |
| June 21, 2017 | EF0 | St. John the Baptist Parish | 1.9 mi | 50 yd | 0 | 0 |
About St. John the Baptist Parish
- Population: 39,694 (2024 estimate)
- State: Louisiana
- NOAA Weather Radio SAME code: 022095 (how to use it)