Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 16, NWS Nashville, TN
NWS Nashville, TN issued this severe thunderstorm warning at Mar 25, 2021, 4:50 PM CDT for Robertson County, Sumner County, Tennessee. It was in force for 25 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
- Mar 25, 2021, 4:50 PM CDT (21:50 UTC)
- Expired
- Mar 25, 2021, 5:15 PM CDT
- In force
- 25 min
- Issued by
- NWS Nashville, TN
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Robertson County, TN, Sumner County, TN
The radar
The Nashville radar (KOHX), 31 km from the middle of the area, began a volume at 21:49 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 |
|---|---|---|---|
| Mar 25, 4:58 PM CDT | HAIL 1.5 | Cottontown, TN | TSPOTTER REPORT OF 1.5 HAIL IN COTTONTOWN |
| Mar 25, 5:00 PM CDT | TSTM WND DMG | 5 Ene Portland, TN | *** 4 INJ *** VERY DAMAGING STRAIGHT LINE WINDS STRUCK AN AREA AROUND COOK ROAD AND HIGHWAY 259 NORTHEAST OF PORTLAND. NUMEROUS TREES WERE UPROOTED AND SEVERAL BARNS AND OUTBUILDINGS WERE DAMAGED OR DESTROYED. FOUR INJURIES WERE REPORTED IN THIS AREA. WINDS WE |
| Mar 25, 5:14 PM CDT | HAIL 2 | 2 N White House, TN | LARGE HAIL REPORT FROM 37048 ABOVE RIDGE. |
| Mar 25, 5:19 PM CDT | HAIL 1.5 | Portland, TN | TSPOTTER REPORT OF 1.5 ESTIMATED HAIL FROM PORTLAND. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 25, 3:48 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 9.8 hours before the alert went out and 44 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
- 60 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 753 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
344
WUUS54 KOHX 252150
SVROHX
TNC147-165-252215-
/O.NEW.KOHX.SV.W.0016.210325T2150Z-210325T2215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
450 PM CDT Thu Mar 25 2021
The National Weather Service in Nashville has issued a
* Severe Thunderstorm Warning for...
Sumner County in Middle Tennessee...
Southeastern Robertson County in Middle Tennessee...
* Until 515 PM CDT.
* At 450 PM CDT, a severe thunderstorm was located near White House,
or 7 miles northwest of Gallatin, moving northeast at 70 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Trained weather spotters.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Gallatin, Hendersonville, Goodlettsville, White House,
Millersville, Cross Plains, Portland, Orlinda, Mitchellville,
Cottontown and Oak Grove.
Sumner County Covid-19 Vaccine will also be impacted.
This includes Interstate 65 near mile marker 102, near mile marker
112, and between mile markers 116 and 121.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for Middle
Tennessee.
This storm is producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows!
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3664 8624 3629 8653 3630 8654 3632 8654
3631 8656 3639 8672 3664 8658 3663 8656
3664 8655 3664 8654 3665 8651 3665 8645
TIME...MOT...LOC 2150Z 209DEG 60KT 3643 8658
HAIL...1.25IN
WIND...60MPH
$$
Rose2 follow-up statements
615
WWUS54 KOHX 252201
SVSOHX
Severe Weather Statement
National Weather Service Nashville TN
501 PM CDT Thu Mar 25 2021
TNC147-252211-
/O.CAN.KOHX.SV.W.0016.000000T0000Z-210325T2215Z/
Robertson TN-
501 PM CDT Thu Mar 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN ROBERTSON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until 1100 PM CDT for Middle
Tennessee.
LAT...LON 3664 8627 3647 8641 3657 8660 3663 8657
3665 8651
TIME...MOT...LOC 2201Z 209DEG 60KT 3660 8647
$$
TNC165-252215-
/O.CON.KOHX.SV.W.0016.000000T0000Z-210325T2215Z/
Sumner TN-
501 PM CDT Thu Mar 25 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM CDT
FOR NORTH CENTRAL SUMNER COUNTY...
At 501 PM CDT, a severe thunderstorm was located over Portland, or 14
miles north of Gallatin, moving northeast at 70 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Trained weather spotters.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Portland, Mitchellville and Oak Grove.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for Middle
Tennessee.
This storm is producing destructive winds and large damaging hail.
SEEK SHELTER NOW inside a sturdy structure and stay away from
windows.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3664 8627 3647 8641 3657 8660 3663 8657
3665 8651
TIME...MOT...LOC 2201Z 209DEG 60KT 3660 8647
HAIL...1.25IN
WIND...60MPH
$$
Rose984
WWUS54 KOHX 252206
SVSOHX
Severe Weather Statement
National Weather Service Nashville TN
506 PM CDT Thu Mar 25 2021
TNC165-252216-
/O.EXP.KOHX.SV.W.0016.000000T0000Z-210325T2215Z/
Sumner TN-
506 PM CDT Thu Mar 25 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL SUMNER COUNTY
WILL EXPIRE AT 515 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1100 PM CDT for Middle
Tennessee.
LAT...LON 3664 8627 3647 8641 3657 8660 3663 8657
3665 8651
TIME...MOT...LOC 2206Z 209DEG 60KT 3667 8642
$$
RoseThe office that day
Everything else NWS Nashville, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 8:08 PM CDT | Flash Flood Watch | OHX | Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more | 27 hr |
| Mar 25, 2:19 AM CDT | Wind Advisory | OHX | Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 32 more | 21 hr |
| Mar 25, 3:15 PM CDT | Special Weather Statement | OHX | Giles | 30 min |
| Mar 25, 3:31 PM CDT | Special Weather Statement | OHX | Warren | 29 min |
| Mar 25, 3:50 PM CDT | Special Weather Statement | OHX | Maury, Williamson | 25 min |
| Mar 25, 4:01 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Maury, Williamson | 29 min |
| Mar 25, 4:04 PM CDT | Special Weather Statement | OHX | Overton, Putnam, White | 26 min |
| Mar 25, 4:23 PM CDT | Severe Thunderstorm Warning | OHX | Davidson, Sumner, Williamson, Wilson | 37 min |
| Mar 25, 5:05 PM CDT | Special Weather Statement | OHX | Perry | 40 min |
| Mar 25, 5:15 PM CDT | Severe Thunderstorm Warning | OHX | Hickman, Humphreys, Perry | 30 min |
| Mar 25, 6:40 PM CDT | Special Weather Statement | OHX | Robertson | 20 min |
| Mar 25, 6:55 PM CDT | Special Weather Statement | OHX | Hickman | 35 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.