A weak cold front and a subtle upper-level disturbance interacted with a moist and unstable airmass to produce a line of thunderstorms that moved north to south across the Mid-South on June 12, 2026. Precipitable water values approaching 2 inches combined with SBCAPEs over 2000 J/kg supported locally heavy rainfall and flash flooding, along with isolated wind damage.
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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.
A weak cold front and a subtle upper-level disturbance interacted with a moist and unstable airmass to produce a line of thunderstorms that moved north to south across the Mid-South on June 12, 2026. Precipitable water values approaching 2 inches combined with SBCAPEs over 2000 J/kg supported locally heavy rainfall and flash flooding, along with isolated wind damage.
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 Jun 12, 4:48 AM CST, 7 hours 12 minutes earlier. Its key messages:
Area Forecast Discussion National Weather Service Memphis TN 548 AM CDT Fri Jun 12 2026 ...New AVIATION... .KEY MESSAGES... Issued at 548 AM CDT Fri Jun 12 2026 - A cold front will move into the region today, bringing showers and thunderstorms through this evening. - An unsettled weather pattern will persist through early next week, with multiple chances for showers and thunderstorms, though severe weather probabilities remain low. - Below normal temperatures are anticipated next week with highs in the low 80s. && .DISCUSSION... (Tonight through next Thursday) Issued at 1141 PM CDT Thu Jun 11 2026 930 PM surface observations depict a frontal boundary stretching from the Texas Panhandle northeast into the Great Lakes. This boundary will continue on a southeast trajectory overnight, bringing showers and thunderstorms into the Mid-South by 5AM. Given lack luster bulk shear, the potential for this activity to become severe is low (around 10 percent). However, residual SBCAPE and lapse rates around 6.5 C/km may encourage a few strong storms in northeast Arkansas and the Missouri Bootheel. Should this occur, gusty winds will be the primary concern. Rain chances will persist through Friday as the aforementioned front stalls over central Mississippi. Additional precipitation chances will manifest on Saturday as this boundary returns north as a warm front. The 00Z CAMs suite depicts the majority of the Mid-South staying dry as this occurs, but ensemble members remain consistent in at least isolated shower and thunderstorm coverage through the evening hours. Broad upper level troughing will begin to develop over CONUS on Sunday, allowing another cold front to eject towards the Mid- South. The LREF places a 10 to 15 percent chance of overlapping severe weather ingredients Sunday afternoon as this boundary pushes across the area. This setup will feature bulk shear around 40 kts and SBCAPE in excess of 1500 J/kg. This environment will support better storm organization along the front, though poor lapse rates should limit storms to mainly a damaging wind threat. The bigger story will be unseasonably cool air that lasts into the middle of next week. Afternoon highs will be in the low to mid 80s on Monday and Tuesday, which is around 10 degrees below normal. Long range guidance places additional rain chances for the end of next week as an upper level low develops over TX. However, run to run inconsistencies remain so expect a potential wet end to the work week with temperatures increasing to near normal. ANS && .AVIATION... (12Z TAFS) Issued at 548 AM CDT Fri Jun 12 2026 A broken line of thunderstorms is currently making its way southward into the region and will continue to progress south through this afternoon, bringing the potential for MVFR impacts at all four terminals. The coverage of impacts is still too low to prevail so have maintained TEMPO groups at each terminal. As the initial line of convection pushes south, guidance indicates that enough clearing may occur to produce a second round of showers and storms at MEM/MKL late this afternoon. Regardless, convective coverage will diminish in coverage during and after sunset with VFR conditions and light winds expected after 00z through the end of the period. && .FIRE WEATHER... Issued at 1141 PM CDT Thu Jun 11 2026 Elevated humidity levels will preclude fire weather concerns this forecast period. In addition, wetting rain chances will persist through the weekend into the beginning of next week. && .MEG WATCHES/WARNINGS/ADVISORIES... AR...None. MO...None. MS...None. TN...None. && PUBLIC FORECAST...ANS AVIATION...JAB
Preliminary Local Storm Report
National Weather Service Memphis TN
1218 PM CDT Fri Jun 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1211 PM Flash Flood 1 S Bartlett 35.20N 89.84W
06/12/2026 Shelby TN Trained Spotter
Flooding reported on Kirby Whitten Rd north
of I-40.
&&Preliminary Local Storm Report
National Weather Service Memphis TN
1227 PM CDT Fri Jun 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1201 PM Flash Flood 1 WSW Lakeland 35.23N 89.75W
06/12/2026 Shelby TN Public
water covering roads in the Davies
Plantation area, specifically St Phillip
Drive and Anderson Springs Drive. Photo from
social media.
&&Preliminary Local Storm Report
National Weather Service Memphis TN
1248 PM CDT Fri Jun 12 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1243 PM Flash Flood 1 E Midtown Memphis 35.14N 89.97W
06/12/2026 Shelby TN NWS Employee
NWS employee reported road closures due to
significant flooding at Poplar and
Union/Walnut Grove in Midtown.
&&The Columbus AFB radar (KGWX), 68 km away, was scanning. The volume nearest the first event began at 18:01 UTC.
1 thunderstorm wind, 1 flash flood. Local standard time, as filed.
Numerous trees were knocked down across Lee County.
Stateline Road was flooded west of I-55 in DeSoto County.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Mississippi in 2026Every state in 2026This day in weather historyWarnings in Mississippi, June 2026
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: 1347111, 1347236.