Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 122, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Jul 31, 2021, 10:19 PM CDT for 5 counties in Tennessee. It was in force for 41 min. 3 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, 10:19 PM CDT (03:19 UTC)
- Expired
- Jul 31, 2021, 11:00 PM CDT
- In force
- 41 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Cheatham County, TN, Davidson County, TN, Marshall County, TN, Maury County, TN, Williamson County, TN
The radar
The Nashville radar (KOHX), 42 km from the middle of the area, began a volume at 03:19 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, 10:45 PM CDT | TSTM WND DMG | Spring Hill, TN | TREES DOWN ALONG FITZROY CIRCLE AND STEWART CAMPBELL POINT |
| Jul 31, 10:53 PM CDT | TSTM WND DMG | 4 Wsw Eagleville, TN | TREE FELL ON A HOUSE. POWER IS OUT IN THE AREA. |
| Jul 31, 10:53 PM CDT | TSTM WND DMG | 5 Wsw Eagleville, TN | TSPOTTER REPORT OF POWER LINES, TREES DOWN, AND A TREE DOWN ON A ROOF. 6900 BLOCK OF FLAT CREEK ROAD. |
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, 3.3 hours before the alert went out and 30 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.
041 WUUS54 KOHX 010319 SVROHX TNC021-037-117-119-187-010400- /O.NEW.KOHX.SV.W.0122.210801T0319Z-210801T0400Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Nashville TN 1019 PM CDT Sat Jul 31 2021 The National Weather Service in Nashville has issued a * Severe Thunderstorm Warning for... Southwestern Davidson County in Middle Tennessee... North central Marshall County in Middle Tennessee... Northeastern Maury County in Middle Tennessee... Williamson County in Middle Tennessee... Southeastern Cheatham County in Middle Tennessee... * Until 1100 PM CDT. * At 1018 PM CDT, severe thunderstorms were located along a line extending from White Bluff to near Fairview, moving southeast at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Franklin, Brentwood, Spring Hill, Nolensville, Forest Hills, Oak Hill, Belle Meade, Kingston Springs, Thompson's Station, Pegram, Bellevue, Antioch, Fairview, Bells Bend, Natchez Trace At Highway 96 and Leipers Fork. This includes the following highways... Interstate 40 between mile markers 182 and 203. Interstate 65 between mile markers 50 and 79. Interstate 24 between mile markers 57 and 60. Interstate 840 between mile markers 7 and 40. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3605 8664 3559 8673 3588 8721 3627 8713 TIME...MOT...LOC 0318Z 307DEG 44KT 3619 8715 3596 8719 HAIL...<.75IN WIND...60MPH $$ Shamburger
2 follow-up statements
141 WWUS54 KOHX 010333 SVSOHX Severe Weather Statement National Weather Service Nashville TN 1033 PM CDT Sat Jul 31 2021 TNC021-037-117-119-187-010400- /O.CON.KOHX.SV.W.0122.000000T0000Z-210801T0400Z/ Davidson TN-Marshall TN-Maury TN-Williamson TN-Cheatham TN- 1033 PM CDT Sat Jul 31 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR SOUTHWESTERN DAVIDSON...NORTH CENTRAL MARSHALL...NORTHEASTERN MAURY...WILLIAMSON AND SOUTHEASTERN CHEATHAM COUNTIES... At 1032 PM CDT, severe thunderstorms were located along a line extending from Pegram to Leipers Fork, moving southeast at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Franklin, Brentwood, Spring Hill, Nolensville, Forest Hills, Oak Hill, Belle Meade, Kingston Springs, Thompson's Station, Pegram, Bellevue, Antioch, Fairview, Bells Bend, Natchez Trace At Highway 96 and Leipers Fork. This includes the following highways... Interstate 40 between mile markers 182 and 203. Interstate 65 between mile markers 50 and 79. Interstate 24 between mile markers 57 and 60. Interstate 840 between mile markers 7 and 40. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3605 8664 3559 8673 3588 8721 3627 8713 TIME...MOT...LOC 0332Z 301DEG 45KT 3617 8698 3582 8705 HAIL...<.75IN WIND...60MPH $$ Shamburger
103 WWUS54 KOHX 010345 SVSOHX Severe Weather Statement National Weather Service Nashville TN 1045 PM CDT Sat Jul 31 2021 TNC021-010355- /O.CAN.KOHX.SV.W.0122.000000T0000Z-210801T0400Z/ Cheatham TN- 1045 PM CDT Sat Jul 31 2021 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHEATHAM COUNTY IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. LAT...LON 3605 8664 3559 8673 3579 8706 3619 8696 TIME...MOT...LOC 0345Z 308DEG 41KT 3606 8681 3575 8696 $$ TNC037-117-119-187-010400- /O.CON.KOHX.SV.W.0122.000000T0000Z-210801T0400Z/ Davidson TN-Marshall TN-Maury TN-Williamson TN- 1045 PM CDT Sat Jul 31 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT FOR SOUTHWESTERN DAVIDSON...NORTH CENTRAL MARSHALL...NORTHEASTERN MAURY AND WILLIAMSON COUNTIES... At 1045 PM CDT, severe thunderstorms were located along a line extending from Forest Hills to near Spring Hill, moving southeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Franklin, Brentwood, Spring Hill, Nolensville, Forest Hills, Oak Hill, Belle Meade, Thompson's Station, Bellevue, Antioch, Bells Bend, Natchez Trace At Highway 96 and Leipers Fork. This includes the following highways... Interstate 40 between mile markers 195 and 203. Interstate 65 between mile markers 50 and 79. Interstate 24 between mile markers 57 and 60. Interstate 840 between mile markers 19 and 40. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3605 8664 3559 8673 3579 8706 3619 8696 TIME...MOT...LOC 0345Z 308DEG 41KT 3606 8681 3575 8696 HAIL...<.75IN WIND...60MPH $$ Shamburger
The office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 31, 7:03 PM CDT | Severe Thunderstorm Warning | OHX | Robertson | 27 min |
| Jul 31, 7:07 PM CDT | Special Weather Statement | OHX | Robertson | 23 min |
| Jul 31, 7:27 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Dickson, Montgomery | 20 min |
| Jul 31, 7:31 PM CDT | Special Weather Statement | OHX | Davidson, Robertson | 44 min |
| Jul 31, 7:41 PM CDT | Special Weather Statement | OHX | Robertson | 34 min |
| Jul 31, 7:51 PM CDT | Special Weather Statement | OHX | Cheatham, Davidson | 39 min |
| Jul 31, 7:58 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Wilson | 47 min |
| Jul 31, 8:05 PM CDT | Special Weather Statement | OHX | Sumner, Trousdale | 40 min |
| Jul 31, 8:24 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Williamson | 36 min |
| Jul 31, 8:47 PM CDT | Areal Flood Advisory | OHX | Robertson | 4 hr |
| Jul 31, 8:57 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Rutherford, Williamson | 33 min |
| Jul 31, 9:10 PM CDT | Severe Thunderstorm Warning | OHX | Houston, Montgomery, Stewart | 50 min |
| Jul 31, 9:16 PM CDT | Special Weather Statement | OHX | Davidson | 59 min |
| Jul 31, 9:48 PM CDT | Special Weather Statement | OHX | Cheatham, Dickson | 27 min |
| Jul 31, 9:53 PM CDT | Areal Flood Advisory | OHX | Cheatham, Davidson, Robertson, Sumner | 3 hr |
| Jul 31, 9:57 PM CDT | Severe Thunderstorm Warning | OHX | Cheatham, Dickson, Hickman, Montgomery, Williamson | 33 min |
| Jul 31, 10:24 PM CDT | Flash Flood Warning | OHX | Cheatham, Davidson, Williamson | 4 hr |
| Jul 31, 10:52 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Marshall, Maury, Rutherford, Williamson | 38 min |
| Jul 31, 10:55 PM CDT | Areal Flood Advisory | OHX | Davidson, Rutherford, Wilson | 16 min |
| Jul 31, 11:10 PM CDT | Flash Flood Warning | OHX | Davidson, Rutherford, Wilson | 3 hr |
| Jul 31, 11:24 PM CDT | Severe Thunderstorm Warning | OHX | Lewis, Perry, Wayne | 36 min |
| Jul 31, 11:26 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Cannon, Coffee, Marshall, Rutherford, Warren | 34 min |
| Jul 31, 11:36 PM CDT | River Flood Warning | OHX | Davidson | 3 hr |
| Jul 31, 11:41 PM CDT | River Flood Advisory | OHX | Davidson | 3 hr |
| Jul 31, 11:55 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Cannon, Coffee, Grundy, Rutherford, Van Buren and 1 more | 53 min |
| Aug 1, 2:40 AM CDT | Special Weather Statement | OHX | Wayne | 50 min |
| Aug 1, 3:43 AM CDT | Special Weather Statement | OHX | Wayne | 47 min |
| Aug 1, 4:29 AM CDT | Special Weather Statement | OHX | Lawrence, Wayne | 46 min |
| Aug 1, 6:47 AM CDT | Special Weather Statement | OHX | Giles, Lawrence | 43 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.