National Weather ServiceLouisianaHeat AdvisoryArchive to October 1, 2026
Heat Advisories in Louisiana
The National Weather Service issued 63 heat advisories for Louisiana in 2025 and 48 a year on average in 2008-2025; in 2021-2025 it had the 5th most of any state. 2026 through September: 91, 91% above the average of 48 for those months in 2008-2025. Morehouse was covered most often (233 times since 2008).
How many heat advisories does Louisiana get?
Every heat advisory that covered part of Louisiana. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 91 |
| 2025 | 63 |
| 2024 | 118 |
| 2023 | 132 |
| 2022 | 82 |
| 2021 | 68 |
| 2020 | 54 |
| 2019 | 61 |
| 2018 | 31 |
| 2017 | 15 |
| 2016 | 33 |
| 2015 | 33 |
| 2014 | 1 |
| 2013 | 7 |
| 2012 | 22 |
| 2011 | 42 |
| 2010 | 59 |
| 2009 | 25 |
| 2008 | 10 |
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
When in the year does Louisiana get them?
Sum of 2008-2025; the busiest month is labelled.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
Where in Louisiana?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Morehouse | 233 | 97 | September 16, 2026 |
| Richland | 231 | 98 | September 16, 2026 |
| East Carroll | 230 | 95 | September 16, 2026 |
| Madison | 230 | 100 | September 16, 2026 |
| Tensas | 230 | 104 | September 16, 2026 |
| Franklin | 228 | 100 | September 16, 2026 |
| West Carroll | 228 | 93 | September 16, 2026 |
| St. John The Baptist | 225 | 102 | September 7, 2026 |
| East Baton Rouge | 222 | 100 | September 7, 2026 |
| West Baton Rouge | 222 | 100 | September 7, 2026 |
| Iberville | 221 | 100 | September 7, 2026 |
| St. James | 221 | 101 | September 7, 2026 |
The NWS issues these products for counties or forecast zones; a zone can be part of a county or a mountain range.
Source: Iowa Environmental Mesonet archive of National Weather Service watches, warnings and advisories (VTEC); National Weather Service. Data as of October 1, 2026.
What is a heat advisory?
A heat advisory means heat that can make people ill, especially those without cooling, below the office's extreme heat warning values. An advisory is issued for a hazard less serious than a warning that can still cause inconvenience or danger if people are not careful. The national record · Every warning type in Louisiana.