Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 19, NWS Morristown, TN

March 27, 2021Hawkins County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Mar 27, 2021, 10:41 AM EDT for Hawkins County, Tennessee. It was in force for 49 min. 2 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 27, 2021, 10:41 AM EDT (14:41 UTC)
Expired
Mar 27, 2021, 11:30 AM EDT
In force
49 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

County Hawkins County, TN

The radar

The Knoxville radar (KMRX), 72 km from the middle of the area, began a volume at 14:43 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 27, 10:45 AM EDTHAIL 0.5Surgoinsville, TN
Mar 27, 10:55 AM EDTHAIL 14 W Church Hill, TN

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 12:00Z, 2.7 hours before the alert went out and 256 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 12:00Z on 2021-03-27Temperature 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 12:00Z on 2021-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
2434 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

954 
WUUS54 KMRX 271441
SVRMRX
TNC073-271530-
/O.NEW.KMRX.SV.W.0019.210327T1441Z-210327T1530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
1041 AM EDT Sat Mar 27 2021

The National Weather Service in Morristown has issued a

* Severe Thunderstorm Warning for...
  Northeastern Hawkins County in east Tennessee...

* Until 1130 AM EDT.

* At 1041 AM EDT, a severe thunderstorm was located near Rogersville,
  moving east at 45 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Kingsport, Rogersville, Surgoinsville, Church Hill, Mount Carmel,
  Okolona, Kepler, McCloud and Bays Mountain Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3659 8261 3657 8260 3658 8262 3652 8261
      3651 8263 3649 8263 3646 8270 3643 8268
      3642 8268 3640 8274 3635 8300 3646 8304
      3660 8278
TIME...MOT...LOC 1441Z 248DEG 38KT 3641 8294 

HAIL...1.00IN
WIND...<50MPH
 
$$

Garuckas
2 follow-up statements
678 
WWUS54 KMRX 271456
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
1056 AM EDT Sat Mar 27 2021

TNC073-271530-
/O.CON.KMRX.SV.W.0019.000000T0000Z-210327T1530Z/
Hawkins TN-
1056 AM EDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT
FOR NORTHEASTERN HAWKINS COUNTY...

At 1056 AM EDT, a severe thunderstorm was located near Surgoinsville,
or 11 miles west of Kingsport, moving east at 45 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Kingsport, Surgoinsville, Church Hill, Mount Carmel and Bays Mountain
Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3640 8280 3652 8289 3660 8273 3659 8261
      3657 8260 3658 8262 3652 8261 3651 8263
      3649 8263 3646 8270 3643 8268 3642 8268
      3642 8269
TIME...MOT...LOC 1456Z 249DEG 41KT 3648 8274 

HAIL...1.00IN
WIND...<50MPH
 
$$

Garuckas
059 
WWUS54 KMRX 271520
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
1120 AM EDT Sat Mar 27 2021

TNC073-271530-
/O.EXP.KMRX.SV.W.0019.000000T0000Z-210327T1530Z/
Hawkins TN-
1120 AM EDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HAWKINS COUNTY
WILL EXPIRE AT 1130 AM EDT...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning will be allowed to expire.

LAT...LON 3640 8280 3652 8289 3660 8273 3659 8261
      3657 8260 3658 8262 3652 8261 3651 8263
      3649 8263 3646 8270 3643 8268 3642 8268
      3642 8269
TIME...MOT...LOC 1520Z 248DEG 38KT 3657 8247 

$$

Garuckas

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 5:03 AM EDTSpecial Weather StatementMRXMarion, Sequatchie42 min
Mar 27, 5:23 AM EDTSevere Thunderstorm WarningMRXBledsoe, Hamilton, Marion, Sequatchie39 min
Mar 27, 5:47 AM EDTSpecial Weather StatementMRXHamilton43 min
Mar 27, 6:08 AM EDTSevere Thunderstorm WarningMRXBradley, Hamilton52 min
Mar 27, 6:41 AM EDTSevere Thunderstorm WarningMRXBradley, Polk49 min
Mar 27, 7:46 AM EDTSpecial Weather StatementMRXRoane44 min
Mar 27, 7:58 AM EDTSevere Thunderstorm WarningMRXMorgan47 min
Mar 27, 8:27 AM EDTSpecial Weather StatementMRXScott48 min
Mar 27, 8:37 AM EDTSpecial Weather StatementMRXKnox38 min
Mar 27, 8:42 AM EDTSevere Thunderstorm WarningMRXScott26 min
Mar 27, 8:58 AM EDTSpecial Weather StatementMRXKnox, Loudon47 min
Mar 27, 9:18 AM EDTSevere Thunderstorm WarningMRXGrainger, Knox, Union42 min
Mar 27, 9:39 AM EDTSevere Thunderstorm WarningMRXKnox, Sevier30 min
Mar 27, 9:43 AM EDTSevere Thunderstorm WarningMRXClaiborne, Grainger, Hancock, Hawkins47 min
Mar 27, 10:00 AM EDTSevere Thunderstorm WarningMRXCocke, Hamblen, Jefferson45 min
Mar 27, 10:06 AM EDTSevere Thunderstorm WarningMRXCampbell, Scott54 min
Mar 27, 10:14 AM EDTSpecial Weather StatementMRXAnderson, Campbell, Morgan, Scott46 min
Mar 27, 10:30 AM EDTSpecial Weather StatementMRXHawkins45 min
Mar 27, 10:33 AM EDTSevere Thunderstorm WarningMRXGreene42 min
Mar 27, 10:33 AM EDTSevere Thunderstorm WarningMRXCampbell, Claiborne42 min
Mar 27, 10:36 AM EDTFlash Flood WarningMRXMorgan, Scott4 hr
Mar 27, 10:51 AM EDTSpecial Weather StatementMRXAnderson, Morgan39 min
Mar 27, 11:00 AM EDTSpecial Weather StatementMRXClaiborne45 min
Mar 27, 11:07 AM EDTSevere Thunderstorm WarningMRXSullivan38 min
Mar 27, 11:11 AM EDTSevere Thunderstorm WarningMRXUnicoi, Washington35 min
Mar 27, 11:20 AM EDTSpecial Weather StatementMRXGrainger, Hamblen, Union40 min
Mar 27, 11:30 AM EDTSevere Thunderstorm WarningMRXClaiborne, Hancock22 min
Mar 27, 11:32 AM EDTSevere Thunderstorm WarningMRXCarter, Johnson, Sullivan, Unicoi, Washington43 min
Mar 27, 11:45 AM EDTAreal Flood AdvisoryMRXHawkins, Sullivan3 hr
Mar 27, 11:46 AM EDTSpecial Weather StatementMRXHamblen, Jefferson44 min
Mar 27, 11:48 AM EDTAreal Flood AdvisoryMRXCampbell, Claiborne3 hr
Mar 27, 11:50 AM EDTAreal Flood AdvisoryMRXCarter, Greene, Washington3 hr
Mar 27, 11:56 AM EDTSpecial Weather StatementMRXMonroe49 min
Mar 27, 12:07 PM EDTAreal Flood AdvisoryMRXAnderson, Knox3 hr
Mar 27, 12:12 PM EDTAreal Flood AdvisoryMRXClaiborne, Hancock3 hr
Mar 27, 12:17 PM EDTSpecial Weather StatementMRXJohnson43 min
Mar 27, 12:23 PM EDTSpecial Weather StatementMRXHawkins52 min
Mar 27, 1:01 PM EDTSevere Thunderstorm WarningMRXCarter, Johnson, Sullivan, Unicoi, Washington44 min
Mar 27, 3:13 PM EDTWind AdvisoryMRXBlount, Carter, Cocke, Greene, Johnson, Monroe and 2 more23 hr
Mar 27, 3:34 PM EDTSpecial Weather StatementMRXCampbell, Morgan41 min
Mar 27, 5:05 PM EDTAreal Flood WarningMRXAnderson, Campbell, Claiborne, Morgan, Scott, Union3 hr
Mar 27, 5:38 PM EDTAreal Flood WarningMRXClaiborne, Grainger, Hancock, Hawkins, Union3 hr
Mar 27, 5:49 PM EDTSpecial Weather StatementMRXAnderson, Morgan41 min
Mar 27, 6:13 PM EDTAreal Flood WarningMRXBlount, Sevier3 hr
Mar 27, 6:59 PM EDTSpecial Weather StatementMRXMorgan, Scott46 min
Mar 27, 7:02 PM EDTSpecial Weather StatementMRXMarion, Sequatchie43 min
Mar 27, 7:15 PM EDTSevere Thunderstorm WarningMRXCampbell, Scott45 min
Mar 27, 7:34 PM EDTSpecial Weather StatementMRXHancock41 min
Mar 27, 7:36 PM EDTSpecial Weather StatementMRXMeigs39 min
Mar 27, 7:40 PM EDTSpecial Weather StatementMRXCampbell, Scott50 min
Mar 27, 7:43 PM EDTSevere Thunderstorm WarningMRXMarion47 min
Mar 27, 7:52 PM EDTSpecial Weather StatementMRXCampbell53 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.