Alert archive / Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 15, NWS Morristown, TN

March 28, 20214 counties in Virginia; Sullivan County, Tennessee

NWS Morristown, TN issued this flash flood warning at Mar 28, 2021, 7:08 AM EDT for 4 counties in Virginia; Sullivan County, Tennessee. It was in force for 6 hr. 5 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, 7:08 AM EDT (11:08 UTC)
Expired
Mar 28, 2021, 1:22 PM EDT
In force
6 hr
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Flood severity
None

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

The radar

The Knoxville radar (KMRX), 124 km from the middle of the area, began a volume at 11:07 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, 7:23 AM EDTFLOOD1 Ssw Colonial Heights, TNREPORT FROM MPING: RIVER/CREEK OVERFLOWING; CROPLAND/YARD/BASEMENT FLOODING.
Mar 28, 9:00 AM EDTFLASH FLOODBlountville, TNCHILDERS FERRY ROAD FLOODED AND IMPASSABLE.
Mar 28, 9:00 AM EDTFLASH FLOODKingsport, TNPRINCETON ROAD FLOODED AND IMPASSABLE.
Mar 28, 9:00 AM EDTFLASH FLOODKingsport, TNTIMBERTREE BRANCH ROAD FLOODED AND IMPASSABLE.
Mar 28, 10:30 AM EDTFLASH FLOODBristol Tn, TNPARKING LOT EAST OF BRISTOL MOTOR SPEEDWAY IS FLOODED.

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, 11.1 hours before the alert went out and 207 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.

276 
WGUS54 KMRX 281108
FFWMRX
TNC163-VAC167-169-191-520-281530-
/O.NEW.KMRX.FF.W.0015.210328T1108Z-210328T1530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Morristown TN
708 AM EDT Sun Mar 28 2021

The National Weather Service in Morristown has issued a

* Flash Flood Warning for...
  Sullivan County in east Tennessee...
  Southern Russell County in southwestern Virginia...
  Southeastern Scott County in southwestern Virginia...
  Washington County in southwestern Virginia...
  The City of Bristol in southwestern Virginia...

* Until 1130 AM EDT.

* At 708 AM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 inches of rain 
  have fallen this weekend. Additional rainfall amounts of 1 to 1.5 
  inches are possible in the warned area. Flash flooding is ongoing 
  or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Johnson City, Kingsport, Bristol Tn, Bristol Va, Abingdon, Gate 
  City, Weber City, Walnut Hill, Spurgeon, Colonial Heights, Bluff 
  City, Glade Spring, Damascus, Nickelsville, Benhams, Hilander 
  Park, Holston, South Holston Dam, Hansonville and Harr.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3679 8256 3684 8212 3692 8184 3679 8171
      3664 8162 3661 8163 3661 8186 3657 8193
      3649 8200 3646 8210 3640 8219 3642 8224
      3640 8229 3640 8235 3645 8241 3643 8259

FLASH FLOOD...RADAR INDICATED

$$

GC
2 follow-up statements
867 
WGUS54 KMRX 281516
FFWMRX
TNC163-VAC167-169-191-520-281730-
/O.EXT.KMRX.FF.W.0015.000000T0000Z-210328T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Morristown TN
1116 AM EDT Sun Mar 28 2021

The National Weather Service in Morristown has extended the

* Flash Flood Warning for...
  Sullivan County in east Tennessee...
  Southern Russell County in southwestern Virginia...
  Southeastern Scott County in southwestern Virginia...
  Washington County in southwestern Virginia...
  The City of Bristol in southwestern Virginia...

* Until 130 PM EDT.

* At 1116 AM EDT, local law enforcement reported flash flooding 
  across the warned area. Between 2 and 4 inches of rain have 
  fallen. Even though the rain has mostly ended it will take a long 
  time for the waters to recede. Avoid driving through flooded 
  roadways.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Law enforcement reported.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Johnson City, Kingsport, Bristol Tn, Bristol Va, Abingdon, Gate 
  City, Weber City, Walnut Hill, Spurgeon, Colonial Heights, Bluff 
  City, Glade Spring, Damascus, Nickelsville, Benhams, Hilander 
  Park, Holston, South Holston Dam, Hansonville and Harr.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3679 8256 3684 8212 3692 8184 3679 8171
      3664 8162 3661 8163 3661 8186 3657 8193
      3649 8200 3646 8210 3640 8219 3642 8224
      3640 8229 3640 8235 3645 8241 3643 8259

FLASH FLOOD...OBSERVED

$$

19
476 
WGUS74 KMRX 281722
FFSMRX

Flash Flood Statement
National Weather Service Morristown TN
122 PM EDT Sun Mar 28 2021

TNC163-VAC167-169-191-520-281732-
/O.CAN.KMRX.FF.W.0015.000000T0000Z-210328T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Sullivan TN-Russell VA-Scott VA-Washington VA-City of Bristol VA-
122 PM EDT Sun Mar 28 2021

...FLASH FLOOD WARNING FOR SULLIVAN, SOUTHERN RUSSELL, SOUTHEASTERN 
SCOTT AND WASHINGTON COUNTIES AND THE CITY OF BRISTOL HAS BEEN 
REPLACED WITH A FLOOD WARNING...

Flood waters will continue to impact low lying areas and several 
roadways for much of the day.

LAT...LON 3679 8256 3684 8212 3692 8184 3679 8171
      3664 8162 3661 8163 3661 8186 3657 8193
      3649 8200 3646 8210 3640 8219 3642 8224
      3640 8229 3640 8235 3645 8241 3643 8259

$$

GC

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, 2:18 AM EDTSevere Thunderstorm WarningMRXScott, Washington, City of Bristol42 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, 7:46 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

Flash Flood Warnings in Virginia, 2021Flash Flood Warnings in Tennessee, 2021Every flash flood 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.