Thunderstorms developed due to surface heating across the Mid-South during the afternoon hours on July 10, 2021. Isolated wind damage occurred across Northeast Mississippi.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MEG wrote it up.
Thunderstorms developed due to surface heating across the Mid-South during the afternoon hours on July 10, 2021. Isolated wind damage occurred across Northeast Mississippi.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Memphis, TN wrote its last area forecast discussion before the first event at Jul 10, 1:48 PM CST, 2 hours 47 minutes earlier.
Area Forecast Discussion National Weather Service Memphis TN 248 PM CDT Sat Jul 10 2021 .DISCUSSION... Diurnal thunderstorms are popping up across the area this afternoon. Farther north, ahead of a shortwave which is forecast to dive south into the mid-section of the country and close off on Sunday/Monday, more organized convection is expected to develop. This upper level feature is expected to push a line of thunderstorms into our area this evening spreading southward overnight. A slight risk of severe weather is forecast with these storms over about the north half of our forecast area with damaging winds the main threat. Another threat with these storms is heavy rainfall and localized flash flooding. A slight risk of excessive rainfall is evident for a good portion of the area overnight through Sunday. For now, holding off on a flash flood watch since the storms tonight are expected to move fairly progressively south. Additionally, on Sunday it remains difficult to pinpoint where the boundary will eventually end up resulting in a focus for potential heavy rainfall on Sunday. Nevertheless, there is a continued risk for localized flash flooding. The upper level low is the dominate feature in our weather into early next week. Temperatures will respond with below average readings through Tuesday before the low lifts out. In the wake of the upper low more normal temperature readings and a continued diurnal threat for storms. Later in the period another shortwave swings through in the westerly flow and pushes another front into the area. The overall pattern through the period does not favor prolonged above average temperatures in our forecast area. This is due to a strong upper high over the mountain west and a general trough over the middle of the country. Belles && .AVIATION... 18z TAFS Winds will remain southwest 8-12kt through the 24-30 TAF cycle. Gusts to around 20kt should subside after sunset. Scattered showers and thunderstorms are expected to develop over the next hour or two as temperatures warm through the middle 80s. Diurnal driven showers/storms should diminish in coverage and intensity after sunset. A line of more organized showers and thunderstorms is expected to sweep across the Midsouth overnight. Prevailing rain is expected at all sites for several hours. Tried to tempo thunderstorms for 4 hrs at all sites based on short tern high resolution guidance, but there are significant timing differences between models. Brief periods of gusty and variable wind along with significantly reduced vis can be expected with any on station thunderstorms. MVFR cigs are likely for much of the night into tomorrow. 30 && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. &&
Hazardous Weather Outlook National Weather Service Memphis TN 453 AM CDT Sat Jul 10 2021 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-111200- Alcorn-Benton MS-Benton TN-Calhoun-Carroll-Chester-Chickasaw-Clay- Coahoma-Craighead-Crittenden-Crockett-Cross-DeSoto-Decatur- Dunklin-Dyer-Fayette-Gibson-Greene-Hardeman-Hardin-Haywood- Henderson-Henry-Itawamba-Lafayette-Lake-Lauderdale-Lee AR-Lee MS- Madison-Marshall-McNairy-Mississippi-Monroe-Obion-Panola-Pemiscot- Phillips-Poinsett-Pontotoc-Prentiss-Quitman-Shelby-St. Francis- Tallahatchie-Tate-Tippah-Tipton-Tishomingo-Tunica-Union-Weakley- Yalobusha- 453 AM CDT Sat Jul 10 2021 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...Today and Tonight A Marginal to slight risk of severe weather exists for portions of the Mid South on today and through tonight. Clusters of storms will be possible with a few storms being strong or severe. Gusty winds and heavy rain will be the main threats. .DAYS TWO THROUGH SEVEN...Sunday through Friday A Marginal risk of severe weather exists for portions of the Mid South on Sunday. Clusters of storms will be possible with a few storms being strong or severe. Gusty winds and heavy rain will be the main threats. A Marginal to Slight risk of excessive rainfall exists for portions of the Mid South on Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
Special Weather Statement
National Weather Service Memphis TN
530 PM CDT Sat Jul 10 2021
MSZ004-005-009-102300-
Tippah MS-Alcorn MS-Prentiss MS-
530 PM CDT Sat Jul 10 2021
...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 600 PM CDT
FOR...
Southeastern Tippah County in northeastern Mississippi...
Alcorn County in northeastern Mississippi...
Prentiss County in northeastern Mississippi...
At 530 PM CDT...a strong thunderstorm producing pea size hail or
larger and winds at least 40 mph was located over Jumpertown, or near
Booneville, moving east at 25 mph.
Very heavy rain along with continuous cloud to ground lightning are
also possible with this thunderstorm.
People in southeastern Tippah...Alcorn and Prentiss Counties should
monitor this storm closely.
LAT...LON 3453 8837 3455 8874 3460 8873 3460 8879
3487 8876 3498 8840 3486 8836 3476 8837
3474 8833
TIME...MOT...LOC 2230Z 259DEG 23KT 3468 8864
KRMThe Columbus AFB radar (KGWX), 89 km away, was scanning. The volume nearest the first event began at 22:33 UTC.
1 thunderstorm wind. Local standard time, as filed.
Numerous trees down and one carport damaged in a five-mile swath from northeast of Blackland to northeast of Booneville.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2021Every state in 2021This day in weather historyWarnings in Mississippi, July 2021
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 976416.