Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS Morristown, TN

March 28, 2021Scott County, Washington County, City of Bristol, Virginia; Johnson County, Sullivan County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Mar 28, 2021, 2:18 AM EDT for Scott County, Washington County, City of Bristol, Virginia; Johnson County, Sullivan County, Tennessee. It was in force for 42 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
Mar 28, 2021, 2:18 AM EDT (06:18 UTC)
Expired
Mar 28, 2021, 3:00 AM EDT
In force
42 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Johnson County, TN, Sullivan County, TN, City of Bristol, VA, Scott County, VA, Washington County, VA

The radar

The Knoxville radar (KMRX), 122 km from the middle of the area, began a volume at 06:17 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

TimeReportWhereRemark
Mar 28, 2:35 AM EDTHAIL 12 Ese Benhams, VA
Mar 28, 2:35 AM EDTHAIL 13 Wnw Bristol Va, VA
Mar 28, 2:45 AM EDTHAIL 11 Ne Abingdon, VA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 6.3 hours before the alert went out and 217 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2021-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -37 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1162 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
-37 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

648 
WUUS54 KMRX 280618
SVRMRX
TNC091-163-VAC169-191-520-280700-
/O.NEW.KMRX.SV.W.0035.210328T0618Z-210328T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
218 AM EDT Sun Mar 28 2021

The National Weather Service in Morristown has issued a

* Severe Thunderstorm Warning for...
  Eastern Sullivan County in east Tennessee...
  Northwestern Johnson County in east Tennessee...
  The City of Bristol in southwestern Virginia...
  Southeastern Scott County in southwestern Virginia...
  Western Washington County in southwestern Virginia...

* Until 300 AM EDT.

* At 218 AM EDT, a severe thunderstorm was located over Walnut Hill,
  or near Bristol Tn, moving east at 55 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Bristol Tn, Bristol Va, Abingdon, Walnut Hill, Bluff City, Morril's
  Cave, South Holston Dam, Holston, Hilander Park and Benhams.

This includes the following highways...
 Interstate 81 in Tennessee between mile markers 70 and 75.
 Interstate 81 in Virginia between mile markers 1 and 23.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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 3644 8227 3670 8241 3672 8234 3672 8233
      3671 8233 3673 8231 3676 8225 3680 8211
      3680 8210 3686 8193 3657 8180
TIME...MOT...LOC 0618Z 252DEG 47KT 3660 8227 

HAIL...1.25IN
WIND...60MPH
 
$$

SR
2 follow-up statements
724 
WWUS54 KMRX 280638
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
238 AM EDT Sun Mar 28 2021

VAC169-280647-
/O.CAN.KMRX.SV.W.0035.000000T0000Z-210328T0700Z/
Scott VA-
238 AM EDT Sun Mar 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SCOTT 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 3650 8207 3664 8216 3671 8218 3678 8219
      3680 8211 3680 8210 3686 8193 3657 8180
TIME...MOT...LOC 0637Z 252DEG 47KT 3668 8197 

$$

TNC091-163-VAC191-520-280700-
/O.CON.KMRX.SV.W.0035.000000T0000Z-210328T0700Z/
Sullivan TN-Johnson TN-City of Bristol VA-Washington VA-
238 AM EDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM EDT
FOR NORTHEASTERN SULLIVAN...NORTHWESTERN JOHNSON AND WESTERN
WASHINGTON COUNTIES AND THE EASTERN CITY OF BRISTOL...

At 237 AM EDT, a severe thunderstorm was located over Abingdon,
moving east at 55 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Bristol Tn, Bristol Va, Abingdon, Holston, Hilander Park, Harr and
Emory-Meadow View.

This includes Interstate 81 in Virginia between mile markers 6 and
23.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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 3650 8207 3664 8216 3671 8218 3678 8219
      3680 8211 3680 8210 3686 8193 3657 8180
TIME...MOT...LOC 0637Z 252DEG 47KT 3668 8197 

HAIL...1.00IN
WIND...60MPH
 
$$

SR
615 
WWUS54 KMRX 280649
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
249 AM EDT Sun Mar 28 2021

VAC520-280659-
/O.CAN.KMRX.SV.W.0035.000000T0000Z-210328T0700Z/
City of Bristol VA-
249 AM EDT Sun Mar 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR THE EASTERN CITY OF BRISTOL IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3653 8196 3654 8199 3667 8198 3672 8199
      3679 8202 3683 8201 3686 8193 3657 8180
TIME...MOT...LOC 0649Z 252DEG 47KT 3673 8178 

$$

TNC091-163-VAC191-280700-
/O.CON.KMRX.SV.W.0035.000000T0000Z-210328T0700Z/
Sullivan TN-Johnson TN-Washington VA-
249 AM EDT Sun Mar 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 AM EDT
FOR NORTHEASTERN SULLIVAN...NORTH CENTRAL JOHNSON AND CENTRAL
WASHINGTON COUNTIES...

At 249 AM EDT, a severe thunderstorm was located 7 miles southwest of
Chilhowie, moving east at 55 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Abingdon and Emory-Meadow View. 

This includes Interstate 81 in Virginia between mile markers 17 and
23.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

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 3653 8196 3654 8199 3667 8198 3672 8199
      3679 8202 3683 8201 3686 8193 3657 8180
TIME...MOT...LOC 0649Z 252DEG 47KT 3673 8178 

HAIL...1.00IN
WIND...60MPH
 
$$

SR

The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 8:06 PM EDTSpecial Weather StatementMRXScott39 min
Mar 27, 8:31 PM EDTSevere Thunderstorm WarningMRXScott, Washington, City of Bristol44 min
Mar 27, 8:36 PM EDTAreal Flood WarningMRXLee, Scott3 hr
Mar 27, 11:37 PM EDTAreal Flood WarningMRXLee, Scott3 hr
Mar 28, 12:55 AM EDTSpecial Weather StatementMRXLee50 min
Mar 28, 1:14 AM EDTFlash Flood WarningMRXLee, Scott3 hr
Mar 28, 1:39 AM EDTSpecial Weather StatementMRXScott, City of Bristol51 min
Mar 28, 1:43 AM EDTAreal Flood WarningMRXRussell, Scott, Washington, City of Bristol3 hr
Mar 28, 1:47 AM EDTSevere Thunderstorm WarningMRXScott43 min
Mar 28, 2:46 AM EDTSevere Thunderstorm WarningMRXWashington18 min
Mar 28, 2:58 AM EDTFlash Flood WarningMRXRussell, Scott, Washington, City of Bristol3 hr
Mar 28, 4:04 AM EDTFlash Flood Warning Considerable damage threatMRXLee, Scott7 hr
Mar 28, 4:16 AM EDTFlash Flood Warning Considerable damage threatMRXScott, Washington, City of Bristol3 hr
Mar 28, 4:58 AM EDTAreal Flood AdvisoryMRXLee, Russell, Scott, Wise, City of Norton115 min
Mar 28, 6:08 AM EDTSpecial Weather StatementMRXScott, City of Norton52 min
Mar 28, 6:52 AM EDTFlash Flood WarningMRXLee, Russell, Scott, Wise, City of Norton6 hr
Mar 28, 7:08 AM EDTFlash Flood WarningMRXRussell, Scott, Washington, City of Bristol6 hr
Mar 28, 7:46 AM EDTRiver Flood WarningMRXScott35 hr
Mar 28, 9:05 AM EDTRiver Flood WarningMRXLee23 hr
Mar 28, 11:07 AM EDTRiver Flood WarningMRXScott33 hr
Mar 28, 11:10 AM EDTAreal Flood WarningMRXLee, Scott21 hr
Mar 28, 11:11 AM EDTAreal Flood WarningMRXLee, Scott20 hr
Mar 28, 1:15 PM EDTAreal Flood WarningMRXLee, Russell, Scott, Wise, City of Norton5 hr
Mar 28, 1:22 PM EDTAreal Flood WarningMRXRussell, Scott, Washington, City of Bristol18 hr
Mar 27, 8:05 PM EDTSevere Thunderstorm WarningMRXCampbell, Claiborne, Grainger, Hancock, Union40 min
Mar 27, 8:09 PM EDTFlash Flood WarningMRXAnderson, Campbell, Claiborne, Morgan, Scott, Union3 hr
Mar 27, 8:11 PM EDTSpecial Weather StatementMRXSequatchie49 min
Mar 27, 8:12 PM EDTSpecial Weather StatementMRXSequatchie48 min
Mar 27, 8:43 PM EDTSevere Thunderstorm WarningMRXClaiborne, Grainger, Hamblen, Hancock, Hawkins47 min
Mar 27, 8:55 PM EDTAreal Flood AdvisoryMRXBledsoe, Hamilton, Marion, Rhea, Sequatchie3 hr
Mar 27, 8:57 PM EDTSpecial Weather StatementMRXSullivan48 min
Mar 27, 9:02 PM EDTRiver Flood WarningMRXMorgan, Roane24 hr
Mar 27, 9:10 PM EDTSpecial Weather StatementMRXJefferson50 min
Mar 27, 9:21 PM EDTSevere Thunderstorm WarningMRXGreene, Hamblen, Hawkins, Washington39 min
Mar 27, 9:22 PM EDTSpecial Weather StatementMRXLoudon38 min
Mar 27, 9:25 PM EDTSpecial Weather StatementMRXLoudon50 min
Mar 27, 9:42 PM EDTSpecial Weather StatementMRXKnox48 min
Mar 27, 9:48 PM EDTSevere Thunderstorm WarningMRXCarter, Greene, Unicoi, Washington24 min
Mar 27, 9:50 PM EDTSpecial Weather StatementMRXJohnson40 min
Mar 27, 10:00 PM EDTSpecial Weather StatementMRXGreene, Unicoi45 min
Mar 27, 10:19 PM EDTAreal Flood AdvisoryMRXCarter, Greene, Hawkins, Sullivan, Washington3 hr
Mar 27, 10:32 PM EDTSpecial Weather StatementMRXAnderson, Campbell, Morgan43 min
Mar 27, 11:13 PM EDTFlash Flood WarningMRXAnderson, Campbell, Claiborne, Morgan, Scott, Union3 hr
Mar 28, 12:14 AM EDTSpecial Weather StatementMRXClaiborne, Grainger, Union46 min
Mar 28, 12:18 AM EDTSevere Thunderstorm WarningMRXAnderson, Campbell, Claiborne, Grainger, Union57 min
Mar 28, 12:35 AM EDTSpecial Weather StatementMRXCampbell, Morgan, Scott40 min
Mar 28, 12:41 AM EDTSpecial Weather StatementMRXGrainger, Hamblen34 min
Mar 28, 1:18 AM EDTSpecial Weather StatementMRXCampbell, Claiborne, Union42 min
Mar 28, 2:11 AM EDTFlash Flood Warning Considerable damage threatMRXAnderson, Campbell, Claiborne, Morgan, Scott, Union3 hr
Mar 28, 3:12 AM EDTSpecial Weather StatementMRXMorgan, Scott48 min
Mar 28, 4:09 AM EDTSpecial Weather StatementMRXCampbell, Morgan, Scott51 min
Mar 28, 4:27 AM EDTSpecial Weather StatementMRXBledsoe63 min
Mar 28, 4:58 AM EDTSpecial Weather StatementMRXAnderson, Campbell, Claiborne, Morgan47 min
Mar 28, 5:03 AM EDTSpecial Weather StatementMRXMeigs, Rhea, Roane42 min
Mar 28, 5:07 AM EDTFlash Flood Warning Considerable damage threatMRXAnderson, Campbell, Claiborne, Morgan, Scott, Union5 hr
Mar 28, 5:15 AM EDTSevere Thunderstorm WarningMRXAnderson, Campbell, Claiborne, Union17 min
Mar 28, 5:26 AM EDTAreal Flood AdvisoryMRXBledsoe, Rhea, Sequatchie71 min
Mar 28, 5:38 AM EDTSpecial Weather StatementMRXGrainger, Hancock, Union52 min
Mar 28, 5:43 AM EDTSpecial Weather StatementMRXAnderson, Knox47 min
Mar 28, 5:43 AM EDTSevere Thunderstorm WarningMRXMarion47 min
Mar 28, 5:48 AM EDTSpecial Weather StatementMRXMeigs, Rhea, Roane42 min
Mar 28, 6:19 AM EDTSpecial Weather StatementMRXHamilton, McMinn41 min
Mar 28, 6:34 AM EDTSpecial Weather StatementMRXGrainger, Hamblen, Hancock, Hawkins, Jefferson, Sevier41 min
Mar 28, 6:36 AM EDTFlash Flood WarningMRXBledsoe, Marion, Rhea, Sequatchie6 hr
Mar 28, 6:40 AM EDTFlash Flood Warning Considerable damage threatMRXAnderson, Knox, Loudon, Morgan, Roane, Union5 hr
Mar 28, 6:43 AM EDTSpecial Weather StatementMRXKnox, Loudon, Meigs, Roane47 min
Mar 28, 6:51 AM EDTSpecial Weather StatementMRXBradley, McMinn, Monroe, Polk39 min
Mar 28, 7:15 AM EDTSpecial Weather StatementMRXCocke, Grainger, Greene, Hamblen, Hancock, Hawkins and 2 more45 min
Mar 28, 7:17 AM EDTFlash Flood WarningMRXBradley, Hamilton, McMinn, Meigs, Rhea, Sequatchie6 hr
Mar 28, 7:27 AM EDTSpecial Weather StatementMRXBlount, Sevier33 min
Mar 28, 7:27 AM EDTSpecial Weather StatementMRXPolk63 min
Mar 28, 7:34 AM EDTRiver Flood WarningMRXClaiborne, Grainger, Hancock51 hr
Mar 28, 7:41 AM EDTRiver Flood WarningMRXClaiborne, Union52 hr
Mar 28, 7:49 AM EDTFlash Flood WarningMRXGrainger, Hamblen, Jefferson, Knox, Sevier5 hr
Mar 28, 7:52 AM EDTFlash Flood WarningMRXBradley, Hamilton, Polk5 hr
Mar 28, 8:00 AM EDTSpecial Weather StatementMRXCarter, Cocke, Greene, Hawkins, Sullivan, Unicoi and 1 more45 min
Mar 28, 8:03 AM EDTFlash Flood WarningMRXBlount, Knox, Loudon, McMinn, Monroe, Polk and 1 more4 hr
Mar 28, 8:21 AM EDTSpecial Weather StatementMRXSevier24 min
Mar 28, 8:26 AM EDTFlash Flood WarningMRXBlount, Cocke, Sevier5 hr
Mar 28, 8:43 AM EDTFlash Flood WarningMRXGreene, Hawkins, Unicoi, Washington4 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2021Severe 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.