Alert archive / Mississippi / Flash Flood Warnings
Flash Flood Warnings in Mississippi, 2023
92 flash flood warnings in 2023. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Flash Flood Warnings
- 92
- Busiest month
- July29 flash flood warnings
- Busiest day
- July 13, 202310 flash flood warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
40 of 92 flash flood warnings covering Mississippi in 2023 had a flash flood report inside them; 73 of 90 flash flood reports fell inside a warning, on average 90 minutes after it went out.
Mississippi, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Flash flood warnings | 92 | 40 | 57% | 90 | 81% | 90 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Jackson, MS: flash flood warnings | 55 | 27 | 51% | 86 | 83% | 85 min |
| NWS New Orleans, LA: flash flood warnings | 53 | 16 | 70% | 45 | 96% | 90 min |
| NWS Memphis, TN: flash flood warnings | 54 | 34 | 37% | 71 | 86% | 88 min |
| NWS Mobile, AL: flash flood warnings | 31 | 20 | 35% | 60 | 97% | 120 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 3, 1:16 AM CST | Flash Flood Warning | MEG | Tunica | 8 hr |
| Jan 3, 3:28 AM CST | Flash Flood Warning | MEG | DeSoto, Tunica | 6 hr |
| Jan 3, 6:56 AM CST | Flash Flood Warning | JAN | Bolivar, Sunflower | 3 hr |
| Jan 3, 7:26 AM CST | Flash Flood Warning | MEG | Coahoma, DeSoto, Marshall, Panola, Quitman, Tate and 1 more | 3 hr |
| Jan 3, 11:18 AM CST | Flash Flood Warning | JAN | Clarke, Jasper, Lauderdale | 3 hr |
| Jan 3, 10:30 PM CST | Flash Flood Warning | JAN | Oktibbeha | 2 hr |
| Jan 4, 12:24 AM CST | Flash Flood Warning | MOB | Greene, Perry, Wayne | 6 hr |
| Jan 4, 2:05 AM CST | Flash Flood Warning | MOB | George, Greene, Perry, Stone | 6 hr |
| Jan 8, 4:22 AM CST | Flash Flood Warning | JAN | Hinds, Leake, Madison, Rankin, Scott | 3 hr |
| Jan 12, 11:16 AM CST | Flash Flood Warning | JAN | Clarke, Jasper, Jones | 47 min |
| Jan 29, 11:45 AM CST | Flash Flood Warning | JAN | Forrest, Lamar, Marion | 6 hr |
| Jan 29, 12:13 PM CST | Flash Flood Warning | LIX | Pearl River | 77 min |
| Jan 29, 8:37 PM CST | Flash Flood Warning | JAN | Franklin, Lincoln | 3 hr |
| Feb 8, 7:55 PM CST | Flash Flood Warning | JAN | Lawrence, Lincoln | 2 hr |
| Feb 8, 8:39 PM CST | Flash Flood Warning | LIX | Amite, Pike, Walthall | 3 hr |
| Feb 8, 9:05 PM CST | Flash Flood Warning | JAN | Lincoln | 2 hr |
| Feb 8, 9:29 PM CST | Flash Flood Warning | LIX | Amite, Pike, Walthall | 5 hr |
| Feb 8, 9:40 PM CST | Flash Flood Warning | JAN | Jefferson Davis, Lawrence, Rankin, Simpson | 2 hr |
| Feb 8, 10:23 PM CST | Flash Flood Warning | LIX | Pearl River | 5 hr |
| Feb 8, 11:09 PM CST | Flash Flood Warning | LIX | Hancock, Pearl River | 4 hr |
| Feb 8, 11:43 PM CST | Flash Flood Warning | LIX | Pike, Walthall | 3 hr |
| Feb 8, 11:59 PM CST | Flash Flood Warning | JAN | Forrest, Lamar | 91 min |
| Feb 16, 11:39 AM CST | Flash Flood Warning | LIX | Amite | 2 hr |
| Feb 16, 4:45 PM CST | Flash Flood Warning | JAN | Copiah, Franklin, Lincoln | 3 hr |
| Feb 16, 4:51 PM CST | Flash Flood Warning | LIX | Amite | 117 min |
| Mar 24, 8:16 PM CDT | Flash Flood Warning | MEG | DeSoto | 3 hr |
| Mar 24, 9:17 PM CDT | Flash Flood Warning | MEG | Lafayette, Panola, Tallahatchie, Yalobusha | 3 hr |
| Mar 24, 10:08 PM CDT | Flash Flood Warning | MEG | Lafayette, Marshall, Pontotoc, Prentiss, Tippah, Union | 3 hr |
| Mar 24, 10:10 PM CDT | Flash Flood Warning | JAN | Carroll, Montgomery, Webster | 2 hr |
| Mar 24, 10:35 PM CDT | Flash Flood Warning | MEG | Alcorn, Itawamba, Lee, Prentiss, Tishomingo | 3 hr |
| Mar 24, 11:04 PM CDT | Flash Flood Warning | MEG | Calhoun, Chickasaw, Itawamba, Lee, Monroe | 3 hr |
| Mar 24, 11:55 PM CDT | Flash Flood Warning | MEG | Monroe | 3 hr |
| Mar 26, 5:33 PM CDT | Flash Flood Warning | JAN | Hinds, Madison, Rankin | 3 hr |
| Mar 26, 6:15 PM CDT | Flash Flood Warning | JAN | Scott, Smith | 3 hr |
| Apr 29, 3:36 PM CDT | Flash Flood Warning | LIX | Hancock | 103 min |
| May 10, 3:47 PM CDT | Flash Flood Warning | MEG | Alcorn, Tishomingo | 3 hr |
| May 10, 5:31 PM CDT | Flash Flood Warning | MEG | Alcorn | 2 hr |
| May 11, 6:16 PM CDT | Flash Flood Warning | LIX | Pike, Walthall | 2 hr |
| May 17, 5:49 PM CDT | Flash Flood Warning | MOB | Wayne | 3 hr |
| May 17, 7:07 PM CDT | Flash Flood Warning | JAN | Jones | 83 min |
| May 27, 9:36 AM CDT | Flash Flood Warning | MEG | DeSoto | 3 hr |
| Jun 14, 9:01 PM CDT | Flash Flood Warning | JAN | Hinds | 83 min |
| Jun 15, 9:07 AM CDT | Flash Flood Warning | JAN | Kemper, Lauderdale, Leake, Neshoba, Newton, Scott | 5 hr |
| Jun 16, 3:48 PM CDT | Flash Flood Warning | MEG | DeSoto, Marshall | 3 hr |
| Jun 16, 5:23 PM CDT | Flash Flood Warning | MEG | Chickasaw, Itawamba, Lee, Monroe, Pontotoc, Prentiss and 1 more | 3 hr |
| Jun 17, 4:01 PM CDT | Flash Flood Warning | JAN | Jasper, Jones, Smith | 3 hr |
| Jun 19, 12:15 AM CDT | Flash Flood Warning | JAN | Attala, Choctaw, Montgomery, Winston | 3 hr |
| Jun 19, 12:54 AM CDT | Flash Flood Warning | JAN | Leake, Neshoba, Newton, Scott | 3 hr |
| Jun 19, 1:24 AM CDT | Flash Flood Warning | JAN | Attala, Leake, Madison, Neshoba, Winston | 2 hr |
| Jun 19, 1:59 AM CDT | Flash Flood Warning | JAN | Clarke, Lauderdale, Newton | 3 hr |
| Jun 19, 9:06 AM CDT | Flash Flood Warning | LIX | Jackson | 88 min |
| Jun 19, 3:10 PM CDT | Flash Flood Warning | LIX | Jackson | 3 hr |
| Jun 19, 9:10 PM CDT | Flash Flood Warning | LIX | Hancock, Pearl River | 3 hr |
| Jun 20, 10:57 AM CDT | Flash Flood Warning | LIX | Harrison, Jackson | 5 hr |
| Jun 20, 1:05 PM CDT | Flash Flood Warning | LIX | Hancock, Harrison, Pearl River | 4 hr |
| Jul 3, 3:13 PM CDT | Flash Flood Warning | JAN | Leflore | 2 hr |
| Jul 3, 5:18 PM CDT | Flash Flood Warning | JAN | Bolivar, Leflore, Sunflower | 3 hr |
| Jul 4, 4:03 AM CDT | Flash Flood Warning | JAN | Forrest, Lamar | 2 hr |
| Jul 4, 4:06 PM CDT | Flash Flood Warning | JAN | Bolivar, Washington | 2 hr |
| Jul 4, 4:46 PM CDT | Flash Flood Warning | JAN | Carroll, Holmes, Humphreys, Leflore | 2 hr |
| Jul 4, 7:00 PM CDT | Flash Flood Warning | MEG | DeSoto, Marshall | 3 hr |
| Jul 6, 6:57 PM CDT | Flash Flood Warning | JAN | Bolivar | 93 min |
| Jul 6, 8:10 PM CDT | Flash Flood Warning | JAN | Adams | 95 min |
| Jul 8, 12:59 PM CDT | Flash Flood Warning | MEG | Prentiss | 3 hr |
| Jul 8, 3:21 PM CDT | Flash Flood Warning | JAN | Lowndes | 2 hr |
| Jul 8, 5:29 PM CDT | Flash Flood Warning | JAN | Choctaw, Oktibbeha, Winston | 3 hr |
| Jul 11, 5:38 PM CDT | Flash Flood Warning | JAN | Jones | 83 min |
| Jul 13, 6:10 AM CDT | Flash Flood Warning | JAN | Clarke, Lauderdale | 8 hr |
| Jul 13, 7:07 AM CDT | Flash Flood Warning | JAN | Kemper | 7 hr |
| Jul 13, 7:46 AM CDT | Flash Flood Warning | JAN | Winston | 3 hr |
| Jul 13, 8:48 AM CDT | Flash Flood Warning | JAN | Choctaw, Oktibbeha, Webster, Winston | 6 hr |
| Jul 13, 9:12 AM CDT | Flash Flood Warning | JAN | Lowndes, Noxubee, Oktibbeha | 6 hr |
| Jul 13, 9:42 AM CDT | Flash Flood Warning | JAN | Winston | 6 hr |
| Jul 13, 10:34 AM CDT | Flash Flood Warning | JAN | Noxubee | 5 hr |
| Jul 13, 11:07 AM CDT | Flash Flood Warning | JAN | Kemper | 4 hr |
| Jul 13, 11:12 AM CDT | Flash Flood Warning | JAN | Kemper, Neshoba, Winston | 4 hr |
| Jul 13, 11:40 AM CDT | Flash Flood Warning | JAN | Choctaw | 4 hr |
| Jul 14, 2:55 PM CDT | Flash Flood Warning | JAN | Oktibbeha | 2 hr |
| Jul 16, 4:22 PM CDT | Flash Flood Warning | LIX | Amite, Wilkinson | 3 hr |
| Jul 16, 4:50 PM CDT | Flash Flood Warning | LIX | Amite, Wilkinson | 3 hr |
| Jul 16, 8:04 PM CDT | Flash Flood Warning | JAN | Clarke | 13 hr |
| Jul 21, 4:12 AM CDT | Flash Flood Warning | MEG | DeSoto, Marshall | 3 hr |
| Jul 21, 1:49 PM CDT | Flash Flood Warning | MEG | DeSoto | 2 hr |
| Jul 21, 1:59 PM CDT | Flash Flood Warning | MEG | Benton, Marshall | 2 hr |
| Aug 29, 5:59 PM CDT | Flash Flood Warning | LIX | Harrison, Jackson | 43 min |
| Sep 1, 6:50 PM CDT | Flash Flood Warning | JAN | Clay, Lowndes, Oktibbeha | 3 hr |
| Sep 25, 2:57 PM CDT | Flash Flood Warning | JAN | Forrest | 2 hr |
| Nov 20, 5:55 PM CST | Flash Flood Warning | JAN | Adams, Jefferson | 2 hr |
| Nov 20, 8:00 PM CST | Flash Flood Warning | JAN | Copiah, Simpson | 2 hr |
| Nov 20, 10:31 PM CST | Flash Flood Warning | LIX | Pike | 2 hr |
| Dec 2, 7:02 AM CST | Flash Flood Warning | LIX | Harrison | 2 hr |
| Dec 2, 8:06 AM CST | Flash Flood Warning | LIX | Jackson | 78 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- DeSoto County8
- Winston County7
- Marshall County6
- Oktibbeha County6
- Amite County6
- Clarke County5
- Pearl River County5
- Pike County5
- Jackson County5
- Bolivar County4
- Lauderdale County4
- Leake County4
- Scott County4
- Jones County4
- Forrest County4
- Lincoln County4
- Walthall County4
- Hancock County4
- Prentiss County4
- Kemper County4
- Neshoba County4
- Choctaw County4
- Harrison County4
- Tunica County3
- Jasper County3
- Hinds County3
- Madison County3
- Rankin County3
- Lamar County3
- Alcorn County3
- Itawamba County3
- Lee County3
- Monroe County3
- Newton County3
- Leflore County3
- Lowndes County3
- Sunflower County2
- Panola County2
- Greene County2
- Perry County2
35 more counties
- Wayne County2
- Franklin County2
- Lawrence County2
- Simpson County2
- Copiah County2
- Lafayette County2
- Pontotoc County2
- Union County2
- Carroll County2
- Montgomery County2
- Webster County2
- Tishomingo County2
- Chickasaw County2
- Smith County2
- Attala County2
- Adams County2
- Noxubee County2
- Wilkinson County2
- Coahoma County1
- Quitman County1
- Tate County1
- George County1
- Stone County1
- Marion County1
- Jefferson Davis County1
- Tallahatchie County1
- Yalobusha County1
- Tippah County1
- Calhoun County1
- Washington County1
- Holmes County1
- Humphreys County1
- Benton County1
- Clay County1
- Jefferson County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.