Union County, Mississippi Tropical Cyclone History
Since 1860, 22 tropical cyclones have passed within 50 miles of Union County, Mississippi — about one every 7.5 years. Of those, 0 were at hurricane strength at their closest approach. The most recent was Ida (2021), which passed 25 miles away on 31 August 2021.
Storm tracks within 50 miles
Key facts
- Most recentIda (2021) — 25 mi away, 31 August 2021
- Strongest stormKatrina (2005) — 41 kt (47 mph) at its strongest within 50 miles
- Closest pass on recordUnnamed Storm (1939) — 0.7 miles
- Closest major hurricane (Cat 3+)None on record
- Passes within 25 miles14 of 22
- Peak monthSeptember — 8 storms (36% of all)
- Most active year2005 — 2 storms
- Most active decade1930s — 3 storms
- Major hurricanes (Cat 3+) within 50 mi0
- Record span1860–2021
When storms arrive
| J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 3 | 4 | 5 | 8 | 2 | 0 | 0 |
Activity by decade
| 1860s | 1870s | 1880s | 1890s | 1900s | 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020s |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 2 | 2 | 1 | 1 | 1 | 0 | 2 | 1 | 1 |
Every tropical or subtropical cyclone within 50 miles
| Storm | Closest approach | Distance | Status | Wind |
|---|---|---|---|---|
| Ida (2021) | 31 Aug 2021 | 25.2 mi | TS / TD | 25 kt |
| Harvey (2017) | 1 Sep 2017 | 5.9 mi | TS / TD | 30 kt |
| Katrina (2005) | 30 Aug 2005 | 30.2 mi | TS / TD | 38 kt |
| Dennis (2005) | 11 Jul 2005 | 8.2 mi | TS / TD | 22 kt |
| Danny (1985) | 17 Aug 1985 | 8.7 mi | TS / TD | 30 kt |
| Bob (1979) | 12 Jul 1979 | 30.0 mi | TS / TD | 25 kt |
| Ethel (1960) | 17 Sep 1960 | 45.5 mi | TS / TD | 23 kt |
| Audrey (1957) | 28 Jun 1957 | 14.5 mi | TS / TD | 35 kt |
| Baker (1950) | 31 Aug 1950 | 22.6 mi | TS / TD | 36 kt |
| Unnamed Storm (1949) | 5 Sep 1949 | 15.8 mi | TS / TD | 22 kt |
| Unnamed Storm (1948) | 5 Sep 1948 | 12.2 mi | TS / TD | 26 kt |
| Unnamed Storm (1939) | 17 Jun 1939 | 0.7 mi | TS / TD | 25 kt |
| Unnamed Storm (1934) | 17 Jun 1934 | 2.2 mi | TS / TD | 35 kt |
| Unnamed Storm (1932) | 20 Sep 1932 | 20.2 mi | TS / TD | 32 kt |
| Unnamed Storm (1923) | 18 Oct 1923 | 13.6 mi | TS / TD | 37 kt |
| Unnamed Storm (1912) | 15 Sep 1912 | 30.6 mi | TS / TD | 32 kt |
| Unnamed Storm (1906) | 28 Sep 1906 | 46.7 mi | TS / TD | 40 kt |
| Unnamed Storm (1893) | 9 Sep 1893 | 23.7 mi | TS / TD | 30 kt |
| Unnamed Storm (1891) | 8 Jul 1891 | 19.3 mi | TS / TD | 25 kt |
| Unnamed Storm (1881) | 29 Aug 1881 | 28.9 mi | TS / TD | 38 kt |
| Unnamed Storm (1872) | 13 Jul 1872 | 35.0 mi | TS / TD | 30 kt |
| Unnamed Storm (1860) | 3 Oct 1860 | 14.1 mi | TS / TD | 40 kt |
Post-tropical and extratropical passes
A further 4 systems passed within 50 miles after losing tropical characteristics. These are excluded from the counts above because they were no longer tropical cyclones at their closest approach — but several were highly damaging, so they are listed here.
| Storm | Status | Closest approach | Distance | Wind |
|---|---|---|---|---|
| Delta (2020) | Post-tropical | 11 Oct 2020 | 18.0 mi | 25 kt |
| Olga (2019) | Post-tropical | 26 Oct 2019 | 33.5 mi | 42 kt |
| Barry (2001) | Remnant low | 7 Aug 2001 | 24.5 mi | 13 kt |
| Unnamed Storm (1901) | Post-tropical | 17 Aug 1901 | 39.4 mi | 30 kt |
How Union County, Mississippi compares
Among the 2,208 U.S. counties and county-equivalents that have recorded at least one tropical cyclone within 50 miles, Union County, Mississippi ranks #721 — more exposed than 67.3% of them. Within Mississippi it ranks #71 of 82, against a state average of 32.3 storms per county.
Notable storms
- TS / TD Katrina (2005) passed 30 miles away on 30 August 2005 as a tropical storm, reaching 41 kt (47 mph) while within 50 miles.
- TS / TD Unnamed Storm (1906) passed 47 miles away on 28 September 1906 as a tropical storm, reaching 40 kt (46 mph) while within 50 miles.
- TS / TD Unnamed Storm (1881) passed 29 miles away on 29 August 1881 as a tropical storm, reaching 40 kt (46 mph) while within 50 miles.
- TS / TD Unnamed Storm (1860) passed 14 miles away on 3 October 1860 as a tropical storm, reaching 40 kt (46 mph) while within 50 miles.
21 of the 22 storms made a documented landfall somewhere along their track.
How often to expect a storm
A return interval of 7.5 years does not mean storms arrive on a schedule. It is simply 22 storms spread over the 166 years from 1860 to 2025. 1 separate year saw more than one storm pass within 50 miles while decades have gone by with none. The longest recorded quiet stretch was 20 years, between 1985 and 2005. It has been 4 years since the last one; 14 of the 20 gaps in this record were longer than that.
Common questions
Has a hurricane ever hit Union County, Mississippi?
No. No tropical cyclone on record has passed within 50 miles of Union County, Mississippi while at hurricane strength. 22 tropical cyclones have passed within that distance since 1860, all of them as tropical storms or depressions. The strongest was Katrina (2005).
When was the last tropical cyclone in Union County, Mississippi?
Ida (2021), on 31 August 2021, passing 25 miles away — 5 years ago. No storm on record has passed within 50 miles of Union County, Mississippi at hurricane strength.
What was the strongest storm to affect Union County, Mississippi?
Katrina (2005), which reached 41 kt (47 mph) while within 50 miles; its closest approach was 30 miles.
How often does a tropical storm reach Union County, Mississippi?
On average, one tropical cyclone passes within 50 miles every 7.5 years — 22 storms over the 166 years from 1860 to 2025, the end of the HURDAT2 record. That is a historical average, not a schedule or a forecast.
Nearby counties
Union County, Mississippi borders or sits close to 6 other counties with a published storm record. Lee County, Mississippi has 24 on record.