National Weather ServiceMississippiExtreme Heat WarningArchive to October 1, 2026
Extreme Heat Warnings in Mississippi
The National Weather Service issued 19 extreme heat warnings for Mississippi in 2025 and 12 a year on average in 2008-2025; in 2021-2025 it had the 5th most of any state. 2026 through September: 23, 95% above the average of 12 for those months in 2008-2025. Coahoma was covered most often (78 times since 2008).
How many extreme heat warnings does Mississippi get?
Every extreme heat warning that covered part of Mississippi. 2026 is an outline: the year is not over.
The numbers
| Year | Count |
|---|---|
| 2026 (through September) | 23 |
| 2025 | 19 |
| 2024 | 37 |
| 2023 | 64 |
| 2022 | 10 |
| 2021 | 14 |
| 2020 | 2 |
| 2019 | 4 |
| 2018 | 4 |
| 2017 | 2 |
| 2016 | 5 |
| 2015 | 13 |
| 2014 | 0 |
| 2013 | 0 |
| 2012 | 2 |
| 2011 | 13 |
| 2010 | 17 |
| 2009 | 3 |
| 2008 | 3 |
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 Mississippi 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 Mississippi?
| County or forecast zone | Since 2008 | Since 2023 | Last issued |
|---|---|---|---|
| Coahoma | 78 | 43 | August 19, 2026 |
| Quitman | 71 | 41 | August 19, 2026 |
| Tallahatchie | 68 | 40 | August 19, 2026 |
| Tunica | 67 | 38 | August 19, 2026 |
| Panola | 58 | 33 | August 19, 2026 |
| Issaquena | 56 | 36 | August 21, 2026 |
| Bolivar | 56 | 36 | August 19, 2026 |
| Sunflower | 55 | 37 | August 19, 2026 |
| Washington | 54 | 35 | August 19, 2026 |
| Warren | 54 | 37 | August 21, 2026 |
| Sharkey | 54 | 35 | August 21, 2026 |
| Leflore | 53 | 36 | August 19, 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.
The latest extreme heat warnings for Mississippi in AreaZine's record
NWS JacksonWarningAugust 21, 2026
Extreme Heat Warning: Morehouse, West Carroll, East Carroll and 23 more, LA and MS
Expired 8:00 p.m. CDT, August 21, 2026
NWS New OrleansWarningAugust 20, 2026
Extreme Heat Warning: Pointe Coupee, West Feliciana, East Feliciana and 46 more, LA and MS
Expired 8:00 p.m. CDT, August 21, 2026
NWS JacksonWarningAugust 19, 2026
Extreme Heat Warning: Rankin and Copiah, MS
Expired 9:00 p.m. CDT, August 19, 2026
NWS MemphisWarningAugust 18, 2026
Extreme Heat Warning: Craighead, Poinsett, Mississippi and 8 more, AR and MS
Expired 8:00 p.m. CDT, August 19, 2026
NWS New OrleansWarningAugust 17, 2026
Extreme Heat Warning: St. James, St. John The Baptist, Upper St. Bernard and 23 more, LA and MS
Expired 8:00 p.m. CDT, August 18, 2026
NWS New OrleansWarningAugust 17, 2026
Extreme Heat Warning: Pointe Coupee, West Feliciana, East Feliciana and 46 more, LA and MS
Expired 8:00 p.m. CDT, August 17, 2026
NWS MemphisWarningAugust 16, 2026
Extreme Heat Warning: Tippah, Alcorn, Tishomingo and 2 more, MS
Expired 8:00 p.m. CDT, August 17, 2026
NWS JacksonWarningAugust 16, 2026
Extreme Heat Warning: Grenada, Carroll, Montgomery and 20 more, MS
Expired 8:00 p.m. CDT, August 17, 2026
This list is AreaZine's record of the NWS alert feed, kept since April 6, 2026; the counts above come from the complete IEM archive.
Source: National Weather Service alerts (api.weather.gov).
What is an extreme heat warning?
An extreme heat warning means dangerous heat is expected, measured by heat index or temperature thresholds each office sets. It replaced the excessive heat warning in 2025. A warning means the hazard is happening, about to happen, or very likely: act now to protect people and property. AreaZine's counts include the excessive heat warnings issued before the change. The national record · Every warning type in Mississippi.