Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 174, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Jul 11, 2021, 12:24 AM CDT for 6 counties in Tennessee; Crittenden County, Arkansas. It was in force for 51 min. 2 reports 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
- Jul 11, 2021, 12:24 AM CDT (05:24 UTC)
- Expired
- Jul 11, 2021, 1:15 AM CDT
- In force
- 51 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Crittenden County, AR, Crockett County, TN, Fayette County, TN, Haywood County, TN, Lauderdale County, TN, Shelby County, TN, Tipton County, TN
The radar
The Memphis radar (KNQA), 24 km from the middle of the area, began a volume at 05:26 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 |
|---|---|---|---|
| Jul 11, 1:03 AM CDT | TSTM WND DMG | Brownsville, TN | TREE DOWN KEY CORNER IN BROWNSILLE. |
| Jul 11, 1:15 AM CDT | TSTM WND DMG | 1 Ne Gadsden, TN | TREE DOWN NORTHEAST OF GADSDEN |
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 00:00Z, 5.4 hours before the alert went out and 78 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
- 1010 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1462 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 4.9
The text
As transmitted.
600
WUUS54 KMEG 110524
SVRMEG
ARC035-TNC033-047-075-097-157-167-110615-
/O.NEW.KMEG.SV.W.0174.210711T0524Z-210711T0615Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
1224 AM CDT Sun Jul 11 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Northeastern Crittenden County in eastern Arkansas...
Tipton County in western Tennessee...
Crockett County in western Tennessee...
Northern Fayette County in western Tennessee...
Lauderdale County in western Tennessee...
Haywood County in western Tennessee...
Shelby County in western Tennessee...
* Until 115 AM CDT.
* At 1224 AM CDT, severe thunderstorms were located along a line
extending from 9 miles southwest of Unionville to near Fulton to
near Gilmore, moving southeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Bartlett, Southaven, Collierville, Germantown, West Memphis,
Marion, Brownsville, Millington, Covington, Ripley, T O Fuller
State Park, Meeman Shelby Forest State Park, Cordova, Memphis,
Lakeland, Arlington, Munford, Somerville, Brighton and Alamo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3529 9034 3543 9007 3539 9005 3545 9003
3553 8987 3589 8968 3592 8960 3581 8893
3567 8903 3568 8906 3569 8907 3562 8907
3520 8937 3499 8995 3499 9031
TIME...MOT...LOC 0524Z 308DEG 33KT 3588 8959 3553 8989 3534 9032
HAIL...<.75IN
WIND...60MPH
$$
SMW2 follow-up statements
267
WWUS54 KMEG 110557
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
1257 AM CDT Sun Jul 11 2021
ARC035-TNC033-047-075-097-157-167-110615-
/O.CON.KMEG.SV.W.0174.000000T0000Z-210711T0615Z/
Crittenden AR-Tipton TN-Crockett TN-Fayette TN-Lauderdale TN-
Haywood TN-Shelby TN-
1257 AM CDT Sun Jul 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHEASTERN CRITTENDEN...TIPTON...CROCKETT...NORTHERN FAYETTE...
EASTERN LAUDERDALE...HAYWOOD AND SHELBY COUNTIES...
At 1257 AM CDT, severe thunderstorms were located along a line
extending from near Belle Eagle to 6 miles northeast of Arlington to
near Sunset, moving southeast at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Bartlett, Southaven, Collierville, Germantown, West Memphis, Marion,
Brownsville, Millington, Covington, Ripley, T O Fuller State Park,
Meeman Shelby Forest State Park, Cordova, Memphis, Lakeland,
Arlington, Munford, Somerville, Brighton and Alamo.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3529 9034 3543 9007 3539 9005 3545 9003
3553 8986 3590 8949 3581 8893 3567 8903
3568 8906 3569 8907 3562 8907 3520 8937
3499 8995 3499 9031
TIME...MOT...LOC 0557Z 307DEG 33KT 3570 8931 3535 8961 3523 9015
HAIL...<.75IN
WIND...60MPH
$$
SMW667
WWUS54 KMEG 110614
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
114 AM CDT Sun Jul 11 2021
ARC035-TNC033-047-075-097-157-167-110624-
/O.EXP.KMEG.SV.W.0174.000000T0000Z-210711T0615Z/
Crittenden AR-Tipton TN-Crockett TN-Fayette TN-Lauderdale TN-
Haywood TN-Shelby TN-
114 AM CDT Sun Jul 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CRITTENDEN...
TIPTON...CROCKETT...NORTHERN FAYETTE...EASTERN LAUDERDALE...HAYWOOD
AND SHELBY COUNTIES WILL EXPIRE AT 115 AM CDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire. However gusty winds are still possible with
these thunderstorms.
LAT...LON 3529 9034 3543 9007 3539 9005 3545 9003
3553 8986 3590 8949 3581 8893 3567 8903
3568 8906 3569 8907 3562 8907 3520 8937
3499 8995 3499 9031
TIME...MOT...LOC 0614Z 308DEG 33KT 3562 8918 3527 8948 3515 9002
$$
SMWThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 11:21 PM CDT | Special Weather Statement | MEG | Lake | 24 min |
| Jul 10, 11:46 PM CDT | Special Weather Statement | MEG | Dyer, Lake, Obion | 44 min |
| Jul 10, 11:55 PM CDT | Severe Thunderstorm Warning | MEG | Lauderdale, Tipton | 50 min |
| Jul 11, 12:28 AM CDT | Special Weather Statement | MEG | Dyer, Gibson, Lake, Obion, Weakley | 47 min |
| Jul 11, 1:09 AM CDT | Special Weather Statement | MEG | Carroll, Gibson, Henry, Weakley | 51 min |
| Jul 11, 1:13 AM CDT | Special Weather Statement | MEG | Crockett, Fayette, Haywood, Madison | 32 min |
| Jul 11, 1:18 AM CDT | Special Weather Statement | MEG | Shelby | 27 min |
| Jul 11, 2:52 AM CDT | Areal Flood Advisory | MEG | Shelby | 3 hr |
| Jul 11, 3:12 AM CDT | Flash Flood Warning | MEG | Shelby | 3 hr |
| Jul 11, 4:15 AM CDT | Areal Flood Advisory | MEG | Fayette, Hardeman | 3 hr |
| Jul 11, 4:27 AM CDT | Areal Flood Advisory | MEG | Shelby | 3 hr |
| Jul 11, 5:09 AM CDT | Flash Flood Warning | MEG | Fayette, Hardeman, Shelby | 2 hr |
| Jul 10, 10:15 PM CDT | Special Weather Statement | MEG | Clay | 30 min |
| Jul 10, 10:34 PM CDT | Severe Thunderstorm Warning | MEG | Clay | 41 min |
| Jul 10, 11:16 PM CDT | Special Weather Statement | MEG | Craighead | 29 min |
| Jul 10, 11:30 PM CDT | Special Weather Statement | MEG | Craighead, Mississippi, Poinsett | 45 min |
| Jul 11, 1:47 AM CDT | Special Weather Statement | MEG | Lee, St. Francis | 28 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 2021Severe Thunderstorm Warnings in Arkansas, 2021Every severe thunderstorm 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.