An upper level disturbance produced several areas of cold pooled generated heavy rain that trained over the same areas across portions of west Tennessee during the evening hours of August 25th.
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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.
An upper level disturbance produced several areas of cold pooled generated heavy rain that trained over the same areas across portions of west Tennessee during the evening hours of August 25th.
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 Aug 25, 6:15 PM CST, 6 minutes earlier.
Area Forecast Discussion National Weather Service Memphis TN 715 PM CDT Sun Aug 25 2019 .UPDATE... Updated to increase evening rain chances along and west of the Mississippi River. && .DISCUSSION... Radar trends show area of convection lifting north across the southwest Delta counties. This region is still well ahead of an approaching shortwave crossing the Ozarks...and the associated lift will keep activity going through midnight along and west of the Mississippi River. Have updated rain chances accordingly. All other parameters are currently on track. JAB && .PREV DISCUSSION... /issued 557 PM CDT Sun Aug 25 2019/ DISCUSSION... /issued 317 PM CDT Sun Aug 25 2019/ A fairly active radar will only likely become more active over the next hour or two, then storms should begin to decrease in coverage and intensity late this afternoon. Storms are moving a bit faster than I expected to see earlier this morning, reducing the threat of flooding across the area. Nevertheless with Precipitable water values around 2 inches locally heavy rainfall is possible and if multiple storms track across the same location flooding is possible. 20-30 mph wind is also possible from thunderstorms this afternoon. The threat of severe storms looks minimal. Most high temperatures across the Midsouth should be in the middle 80s, but much of the area should get some relief from rain cooled air and or thunderstorms outflow, knocking temperatures back down into the 70s. A few showers may linger through the night with additional redevelopment tomorrow as temperatures warm back into the middle 80s. It is very hard to predict coverage of storms this time of year with the lack of any well defined surface boundaries, but at this time it looks like coverage should be as significant as today. Highs should be in the middle 80s once again. Tuesday, a cold front is expected to approach from the North. Numerous to widespread showers and thunderstorms are expected ahead and along this feature. The threat of severe storms looks minimal. It doesn't look significantly cooler Wednesday through the remainder of the work week, but a drier airmass will move into the region. Some dew points may drop into the upper 50s, but most of us will be in the 60s. Highs will remain in the middle to upper 80s. However, those lower dew points along with North wind will make conditions feel cooler. A few showers may linger Wednesday in North Mississippi, but Thursday and Friday look dry as surface high pressure settles over the area with weak Northwest flow aloft. For the weekend, guidance is in poor agreement. The ECMWF is wetter featuring a deeper trough over the region with the GFS maintaining weak Northwest flow. Will feature slight chance pops for now with near normal temperatures. 30 && .AVIATION... 00Z TAF Set Convection has developed across much of the CWA. The only TAF site that might escape being impacted this evening is KMEM. HRRR shows convection eventually shifting to areas of West Tennessee near the Tennessee River and Northeast Mississippi tomorrow. Will continue with vicinity wording at KMKL and KTUP for much of the TAF period. MVFR CIGS will spread over the entire Mid-South by 05-06Z. CIGS will be gradually lift through the day. Winds will become light and variable this evening. Winds tomorrow will be from the SSE at 5-10 KTS. KRM && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. &&
Hazardous Weather Outlook National Weather Service Memphis TN 333 PM CDT Sun Aug 25 2019 ARZ009-018-026>028-035-036-048-049-058-MOZ113-115-MSZ001>017- 020>024-TNZ001>004-019>022-048>055-088>092-262245- 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- 333 PM CDT Sun Aug 25 2019 This hazardous weather outlook is for portions of East Arkansas... the Missouri Bootheel...North Mississippi...and West Tennessee. .DAY ONE...This Afternoon and Tonight Locally heavy rainfall will be possible across the Mid-South today and tonight. This may result in minor flooding of urban and other poor drainage areas. .DAYS TWO THROUGH SEVEN...Monday through Saturday A few strong storms will be possible on Tuesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated at this time.
Special Weather Statement National Weather Service Memphis TN 538 PM CDT Sun Aug 25 2019 MSZ009-014>016-252330- Pontotoc MS-Union MS-Lee MS-Prentiss MS- 538 PM CDT Sun Aug 25 2019 ...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED UNTIL 630 PM CDT FOR... Northeastern Pontotoc County in northeastern Mississippi... Eastern Union County in northeastern Mississippi... Lee County in northeastern Mississippi... Southwestern Prentiss County in northeastern Mississippi... At 538 PM CDT...a strong thunderstorm producing winds at least 40 mph was located near Tupelo, moving north at 15 mph. Very heavy rain along with continuous cloud to ground lightning are also possible with this thunderstorm. People in northeastern Pontotoc...eastern Union...Lee and southwestern Prentiss Counties should monitor this storm closely. LAT...LON 3417 8862 3416 8895 3460 8906 3460 8855 TIME...MOT...LOC 2238Z 191DEG 13KT 3430 8878
The Memphis radar (KNQA), 116 km away, was scanning. The volume nearest the first event began at 00:18 UTC.
2 flash flood. Local standard time, as filed.
State Highway 152 and Lavinia Road closed due to flash flooding.
George Anderson Road flooded and impassable.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2019Every state in 2019This day in weather historyWarnings in Tennessee, August 2019
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: 848914, 848915.