Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 177, NWS Memphis, TN
NWS Memphis, TN issued this severe thunderstorm warning at Jul 31, 2021, 10:31 PM CDT for 6 counties in Tennessee. It was in force for 44 min. 4 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 31, 2021, 10:31 PM CDT (03:31 UTC)
- Expired
- Jul 31, 2021, 11:15 PM CDT
- In force
- 44 min
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Benton County, TN, Carroll County, TN, Decatur County, TN, Gibson County, TN, Henderson County, TN, Madison County, TN
The radar
The Ft Campbell radar (KHPX), 133 km from the middle of the area, began a volume at 03:33 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 31, 10:41 PM CDT | TSTM WND DMG | 1 Wsw Cedar Grove, TN | TREES DOWN ALONG HIGHWAY 70 BETWEEN THE MIDDLE FORK OF THE FORKED DEER RIVER AND FRY ACCESS ROAD. |
| Jul 31, 10:45 PM CDT | TSTM WND DMG | Spring Creek, TN | TREE DOWN ACROSS HWY 70 SOUTH OF SPRING CREEK |
| Jul 31, 10:48 PM CDT | TSTM WND DMG | Blue Goose, TN | NUMEROUS TREES DOWN ACROSS THE ENTIRE COUNTY. |
| Jul 31, 11:18 PM CDT | TSTM WND DMG | Lexington, TN | NUMEROUS TREES DOWN IN AND AROUND CITY OF LEXINGTON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 3.5 hours before the alert went out and 148 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
- 1106 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1447 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 251 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 5.3
The text
As transmitted.
876
WUUS54 KMEG 010331
SVRMEG
TNC005-017-039-053-077-113-010415-
/O.NEW.KMEG.SV.W.0177.210801T0331Z-210801T0415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Memphis TN
1031 PM CDT Sat Jul 31 2021
The National Weather Service in Memphis has issued a
* Severe Thunderstorm Warning for...
Henderson County in western Tennessee...
Southeastern Gibson County in western Tennessee...
Southern Benton County in western Tennessee...
Carroll County in western Tennessee...
Northeastern Madison County in western Tennessee...
Decatur County in western Tennessee...
* Until 1115 PM CDT.
* At 1031 PM CDT, a severe thunderstorm was located near Milan,
moving east at 55 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Jackson, Humboldt, Milan, Lexington, Trenton, Huntingdon, Camden,
Natchez Trace State Park, Natchez Trace State Forest, Fairview,
Parsons, New Johnsonville, Three Way, Bruceton, Atwood,
Decaturville, Blue Goose, Bargerton, Wildersville and Parkers
Crossroads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3583 8797 3577 8798 3572 8803 3566 8802
3562 8804 3552 8797 3549 8798 3548 8799
3574 8894 3578 8890 3581 8895 3605 8894
3605 8799 3600 8800 3597 8802 3594 8800
3594 8794 3585 8795
TIME...MOT...LOC 0331Z 287DEG 49KT 3586 8877
HAIL...<.75IN
WIND...60MPH
$$2 follow-up statements
018
WWUS54 KMEG 010337
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
1037 PM CDT Sat Jul 31 2021
TNC005-017-039-053-077-113-010415-
/O.CON.KMEG.SV.W.0177.000000T0000Z-210801T0415Z/
Henderson TN-Gibson TN-Benton TN-Carroll TN-Madison TN-Decatur TN-
1037 PM CDT Sat Jul 31 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR HENDERSON...SOUTHEASTERN GIBSON...SOUTHERN BENTON...CARROLL...
NORTHEASTERN MADISON AND DECATUR COUNTIES...
At 1037 PM CDT, a severe thunderstorm was located 7 miles southeast
of Milan, moving east at 55 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Jackson, Humboldt, Milan, Lexington, Trenton, Huntingdon, Camden,
Natchez Trace State Park, Natchez Trace State Forest, Fairview,
Parsons, New Johnsonville, Three Way, Bruceton, Atwood, Decaturville,
Blue Goose, Bargerton, Wildersville and Parkers Crossroads.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3583 8797 3577 8798 3572 8803 3566 8802
3562 8804 3552 8797 3549 8798 3548 8799
3574 8894 3578 8890 3581 8895 3605 8894
3605 8799 3600 8800 3597 8802 3594 8800
3594 8794 3585 8795
TIME...MOT...LOC 0337Z 287DEG 49KT 3584 8867
HAIL...<.75IN
WIND...70MPH
$$625
WWUS54 KMEG 010359
SVSMEG
Severe Weather Statement
National Weather Service Memphis TN
1059 PM CDT Sat Jul 31 2021
TNC053-010409-
/O.CAN.KMEG.SV.W.0177.000000T0000Z-210801T0415Z/
Gibson TN-
1059 PM CDT Sat Jul 31 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GIBSON COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3585 8795 3577 8798 3572 8803 3566 8802
3562 8804 3553 8797 3548 8799 3571 8883
3577 8879 3580 8870 3605 8869 3605 8799
3597 8802 3594 8800 3594 8794
TIME...MOT...LOC 0359Z 287DEG 49KT 3575 8831
$$
TNC005-017-039-077-113-010415-
/O.CON.KMEG.SV.W.0177.000000T0000Z-210801T0415Z/
Henderson TN-Benton TN-Carroll TN-Madison TN-Decatur TN-
1059 PM CDT Sat Jul 31 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR HENDERSON...SOUTHERN BENTON...CARROLL...NORTHEASTERN MADISON AND
DECATUR COUNTIES...
At 1059 PM CDT, a severe thunderstorm was located over Natchez Trace
State Forest, moving east at 55 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
Lexington, Huntingdon, Camden, Natchez Trace State Park, Natchez
Trace State Forest, Parsons, New Johnsonville, Bruceton, Atwood,
Decaturville, Blue Goose, Bargerton, Wildersville, Parkers
Crossroads, Darden, Carroll, Trezevant, Hollow Rock, Clarksburg and
McLemoresville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3585 8795 3577 8798 3572 8803 3566 8802
3562 8804 3553 8797 3548 8799 3571 8883
3577 8879 3580 8870 3605 8869 3605 8799
3597 8802 3594 8800 3594 8794
TIME...MOT...LOC 0359Z 287DEG 49KT 3575 8831
HAIL...<.75IN
WIND...70MPH
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 8:40 PM CDT | Special Weather Statement | MEG | Lake | 35 min |
| Jul 31, 8:57 PM CDT | Severe Thunderstorm Warning | MEG | Lauderdale | 48 min |
| Jul 31, 9:09 PM CDT | Special Weather Statement | MEG | Henry, Weakley | 36 min |
| Jul 31, 9:26 PM CDT | Severe Thunderstorm Warning | MEG | Crockett, Dyer, Haywood, Lauderdale | 49 min |
| Jul 31, 9:44 PM CDT | Special Weather Statement | MEG | Lauderdale | 31 min |
| Jul 31, 9:58 PM CDT | Special Weather Statement | MEG | Crockett | 32 min |
| Jul 31, 10:05 PM CDT | Special Weather Statement | MEG | Gibson | 25 min |
| Jul 31, 10:23 PM CDT | Areal Flood Advisory | MEG | Gibson, Madison | 52 min |
| Jul 31, 10:25 PM CDT | Special Weather Statement | MEG | Carroll, Gibson | 35 min |
| Jul 31, 10:33 PM CDT | Special Weather Statement | MEG | Chester, Madison | 27 min |
| Jul 31, 10:48 PM CDT | Tornado Warning | MEG | Benton, Carroll, Decatur, Henderson | 42 min |
| Jul 31, 11:03 PM CDT | Special Weather Statement | MEG | Hardin | 27 min |
| Jul 31, 11:05 PM CDT | Special Weather Statement | MEG | Dyer | 25 min |
| Jul 31, 11:07 PM CDT | Severe Thunderstorm Warning | MEG | Chester, Decatur, Hardin, Henderson, McNairy | 23 min |
| Jul 31, 11:12 PM CDT | Severe Thunderstorm Warning | MEG | Decatur, Henderson | 18 min |
| Jul 31, 11:29 PM CDT | Severe Thunderstorm Warning | MEG | Decatur, Henderson | 16 min |
| Jul 31, 11:31 PM CDT | Special Weather Statement | MEG | Decatur | 14 min |
| Aug 1, 4:42 AM CDT | Areal Flood Advisory | MEG | Hardin | 2 hr |
| Aug 1, 8:33 AM CDT | Special Weather Statement | MEG | McNairy | 57 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 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.