Alert archive / Tennessee / Flash Flood Warnings in 2021
Flash Flood Warning 73, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Aug 13, 2021, 2:51 PM CDT for Fayette County, Shelby County, Tennessee; Crittenden County, Arkansas; DeSoto County, Mississippi. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 13, 2021, 2:51 PM CDT (19:51 UTC)
- Expired
- Aug 13, 2021, 6:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Crittenden County, AR, DeSoto County, MS, Fayette County, TN, Shelby County, TN
The radar
The Memphis radar (KNQA), 31 km from the middle of the area, began a volume at 19:49 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 13, 3:55 PM CDT | FLASH FLOOD | East Memphis, TN | NUMEROUS FLOODING REPORTS IN EAST MEMPHIS WITH CARS STRANDED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 7.9 hours before the alert went out and 27 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 1427 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1235 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
572
WGUS54 KMEG 131951
FFWMEG
ARC035-MSC033-TNC047-157-132300-
/O.NEW.KMEG.FF.W.0073.210813T1951Z-210813T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
251 PM CDT Fri Aug 13 2021
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
East Central Crittenden County in eastern Arkansas...
Northern DeSoto County in northwestern Mississippi...
Southwestern Fayette County in western Tennessee...
Shelby County in western Tennessee...
* Until 600 PM CDT.
* At 251 PM CDT, the public reported thunderstorms producing heavy
rain across the warned area. Between 2 and 3 inches of rain have
fallen. The expected rainfall rate is 2 to 3 inches in 2 hours.
Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Public reported portions of Poplar Avenue in East
Memphis was covered with water.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Bartlett, Southaven, Collierville, Germantown, Olive Branch, West
Memphis, Horn Lake, Marion, Cordova, T O Fuller State Park,
Memphis, Lakeland, Arlington, Walls, Southeast Memphis, Midtown
Memphis, Frayser, Ellendale, Downtown Memphis and Whitehaven.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3509 9020 3520 9021 3522 9007 3528 8959
3500 8961 3500 8964 3500 8969 3500 8972
3496 8972 3493 9019
FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...2-3 INCHES IN 2 HOURS
$$2 follow-up statements
752
WGUS74 KMEG 132213
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
513 PM CDT Fri Aug 13 2021
ARC035-MSC033-TNC047-157-132300-
/O.CON.KMEG.FF.W.0073.000000T0000Z-210813T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Crittenden AR-DeSoto MS-Fayette TN-Shelby TN-
513 PM CDT Fri Aug 13 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM CDT THIS EVENING
FOR EAST CENTRAL CRITTENDEN, NORTHERN DESOTO, SOUTHWESTERN FAYETTE
AND SHELBY COUNTIES...
At 513 PM CDT, Doppler radar shows rain continuing to taper off.
Between 2 and 3 inches of rain have fallen so runoff will continue
to occur. Additional rainfall amounts up to 0.5 inches are possible
in the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Bartlett, Southaven, Collierville, Germantown, Olive Branch, West
Memphis, Horn Lake, Marion, Cordova, T O Fuller State Park,
Memphis, Lakeland, Arlington, Walls, Southeast Memphis, Midtown
Memphis, Frayser, Ellendale, Downtown Memphis and Whitehaven.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3509 9020 3520 9021 3522 9007 3528 8959
3500 8961 3500 8964 3500 8969 3500 8972
3496 8972 3493 9019
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 2 HOURS
$$
KRM276
WGUS74 KMEG 132252
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
552 PM CDT Fri Aug 13 2021
ARC035-MSC033-TNC047-157-132302-
/O.EXP.KMEG.FF.W.0073.000000T0000Z-210813T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Crittenden AR-DeSoto MS-Fayette TN-Shelby TN-
552 PM CDT Fri Aug 13 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 6 PM CDT THIS EVENING FOR EAST
CENTRAL CRITTENDEN, NORTHERN DESOTO, SOUTHWESTERN FAYETTE AND SHELBY
COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3509 9020 3520 9021 3522 9007 3528 8959
3500 8961 3500 8964 3500 8969 3500 8972
3496 8972 3493 9019
$$
KRMThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 12:07 PM CDT | Special Weather Statement | MEG | Haywood | 23 min |
| Aug 13, 12:29 PM CDT | Special Weather Statement | MEG | Haywood | 31 min |
| Aug 13, 12:31 PM CDT | Special Weather Statement | MEG | Haywood | 29 min |
| Aug 13, 12:59 PM CDT | Areal Flood Advisory | MEG | Crockett, Haywood, Lauderdale, Tipton | 2 hr |
| Aug 13, 1:47 PM CDT | Areal Flood Advisory | MEG | Crockett, Gibson, Madison | 3 hr |
| Aug 13, 2:00 PM CDT | Areal Flood Advisory | MEG | Fayette, Shelby | 3 hr |
| Aug 13, 1:18 AM CDT | Special Weather Statement | MEG | Craighead | 27 min |
| Aug 13, 1:45 AM CDT | Areal Flood Advisory | MEG | Craighead | 5 min |
| Aug 13, 1:50 AM CDT | Flash Flood Warning | MEG | Craighead | 3 hr |
| Aug 13, 2:13 PM CDT | Special Weather Statement | MEG | Poinsett | 47 min |
| Aug 13, 2:14 PM CDT | Special Weather Statement | MEG | Poinsett | 46 min |
| Aug 13, 2:15 PM CDT | Special Weather Statement | MEG | Poinsett | 45 min |
| Aug 13, 3:27 PM CDT | Special Weather Statement | MEG | Poinsett | 33 min |
| Aug 13, 2:00 PM CDT | Special Weather Statement | MEG | DeSoto | 45 min |
| Aug 13, 2:25 PM CDT | Special Weather Statement | MEG | Tippah, Union | 50 min |
| Aug 13, 4:26 PM CDT | Flash Flood Warning | MEG | Marshall, Panola, Quitman, Tate | 3 hr |
| Aug 13, 5:08 PM CDT | Flash Flood Warning | MEG | Coahoma, Panola, Quitman, Tallahatchie, Yalobusha | 3 hr |
| Aug 13, 5:16 PM CDT | Areal Flood Advisory | MEG | Itawamba, Lee | 3 hr |
Nearby
Flash Flood Warnings in Tennessee, 2021Flash Flood Warnings in Arkansas, 2021Flash Flood Warnings in Mississippi, 2021Every flash flood warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.