Alert archive / Tennessee / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 21, NWS Morristown, TN

April 2, 2006Johnson County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Apr 2, 2006, 9:56 PM EDT for Johnson County, Tennessee. It was in force for 34 min. 1 report 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
Apr 2, 2006, 9:56 PM EDT (01:56 UTC)
Expired
Apr 2, 2006, 10:30 PM EDT
In force
34 min
Issued by
NWS Morristown, TN
Area
Counties, with a storm outline in the text

County Johnson County, TN

The radar

The Knoxville radar (KMRX), 144 km from the middle of the area, began a volume at 01:57 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
Apr 2, 10:05 PM EDTTSTM WND DMGMountain City, TNA FEW TREES DOWN NEAR MOUNTAIN CITY.

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.

IssuedProductOfficeLasted
Apr 2, 6:08 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.9 hours before the alert went out and 178 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 2006-04-03Temperature 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°0°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 2006-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.193958Sfc1 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
2598 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS54 KMRX 030158
SVRMRX
TNC091-030230-
/O.NEW.KMRX.SV.W.0021.060403T0156Z-060403T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
956 PM EDT SUN APR 2 2006

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  JOHNSON COUNTY IN EAST TENNESSEE
  THIS INCLUDES THE CITY OF MOUNTAIN CITY

* UNTIL 1030 PM EDT

* AT 952 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL SIZE
  HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS WERE
  LOCATED ALONG A LINE EXTENDING FROM 12 MILES WEST OF MOUNTAIN CITY
  TO 27 MILES SOUTHWEST OF MOUNTAIN CITY...OR ALONG A LINE EXTENDING
  FROM 11 MILES SOUTHEAST OF BRISTOL TN TO 8 MILES NORTHWEST OF
  NEWLAND...AND MOVING EAST AT 55 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  MOUNTAIN CITY BY 1005 PM EDT

THESE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
DAMAGING HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY
AWAY FROM WINDOWS

LAT...LON 3654 8171 3648 8170 3641 8175 3634 8171
      3635 8181 3627 8193 3628 8196 3637 8204
      3647 8194 3650 8198 3652 8196 3661 8182
      3662 8166

$$

TG
2 follow-up statements
000 
WWUS54 KMRX 030221
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1020 PM EDT SUN APR 2 2006

TNC091-030230-
/O.CON.KMRX.SV.W.0021.000000T0000Z-060403T0230Z/
JOHNSON TN-
1020 PM EDT SUN APR 2 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR JOHNSON COUNTY...

AT 1018 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM LAUREL BLOOMERY TO 7 MILES
EAST OF NEVA...OR ALONG A LINE EXTENDING FROM 7 MILES NORTH OF
MOUNTAIN CITY TO 7 MILES SOUTHWEST OF ASHLAND...MOVING EAST AT 55
MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
  RURAL NORTHEASTERN JOHNSON COUNTY AT 1030 PM EDT

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES PRIMARY KILLERS. REMEMBER...
IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY
LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
MONDAY MORNING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE AND 
SOUTHWEST VIRGINIA.  HOWEVER...THE WATCH WILL LIKELY BE CANCELLED
EARLY.

LAT...LON 3654 8171 3648 8170 3641 8175 3634 8171
      3635 8181 3627 8193 3628 8196 3637 8204
      3647 8194 3650 8198 3652 8196 3661 8182
      3662 8166

$$

TG
000 
WWUS54 KMRX 030229
SVSMRX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1029 PM EDT SUN APR 2 2006

TNC091-030239-
/O.EXP.KMRX.SV.W.0021.000000T0000Z-060403T0230Z/
JOHNSON TN-
1029 PM EDT SUN APR 2 2006

...THE SEVERE THUNDERSTORM WARNING FOR JOHNSON COUNTY EXPIRES AT 1030
PM EDT...

THE STORMS THAT PROMPTED THE WARNING HAD WEAKENED BELOW SEVERE
LEVELS. THEREFORE...THE WARNING HAS BEEN ALLOWED TO EXPIRE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
MONDAY MORNING FOR SOUTHWEST NORTH CAROLINA AND EAST TENNESSEE AND
SOUTHWEST VIRGINIA.

LAT...LON 3654 8171 3648 8170 3641 8175 3634 8171
      3635 8181 3627 8193 3628 8196 3637 8204
      3647 8194 3650 8198 3652 8196 3661 8182
      3662 8166

$$

TG

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 8:16 PM EDTSevere Thunderstorm WarningMRXBlount, Hamblen, Jefferson, Sevier59 min
Apr 2, 8:44 PM EDTSevere Thunderstorm WarningMRXCocke, Greene46 min
Apr 2, 9:17 PM EDTSevere Thunderstorm WarningMRXCarter, Unicoi, Washington43 min
Apr 2, 11:52 PM EDTSevere Thunderstorm WarningMRXMorgan, Scott38 min
Apr 3, 12:33 AM EDTSevere Thunderstorm WarningMRXCampbell27 min
Apr 3, 12:53 AM EDTSevere Thunderstorm WarningMRXAnderson, Claiborne, Union32 min
Apr 3, 1:02 AM EDTSevere Thunderstorm WarningMRXKnox58 min
Apr 3, 1:35 AM EDTSevere Thunderstorm WarningMRXBledsoe40 min
Apr 3, 1:45 AM EDTSevere Thunderstorm WarningMRXJefferson, Sevier42 min
Apr 3, 2:06 AM EDTSevere Thunderstorm WarningMRXRhea25 min
Apr 3, 2:10 AM EDTSevere Thunderstorm WarningMRXCarter, Johnson, Sullivan, Unicoi, Washington47 min
Apr 3, 2:20 AM EDTSevere Thunderstorm WarningMRXRoane55 min
Apr 3, 2:35 AM EDTSevere Thunderstorm WarningMRXLoudon25 min
Apr 3, 2:52 AM EDTSevere Thunderstorm WarningMRXBlount, Knox53 min
Apr 3, 3:10 AM EDTSevere Thunderstorm WarningMRXJefferson, Sevier65 min
Apr 3, 3:21 AM EDTSevere Thunderstorm WarningMRXBledsoe, Sequatchie39 min
Apr 3, 3:50 AM EDTSevere Thunderstorm WarningMRXMeigs, Rhea40 min
Apr 3, 3:51 AM EDTSevere Thunderstorm WarningMRXCocke54 min
Apr 3, 3:52 AM EDTSevere Thunderstorm WarningMRXMarion23 min
Apr 3, 4:04 AM EDTSevere Thunderstorm WarningMRXHamilton56 min
Apr 3, 4:13 AM EDTSevere Thunderstorm WarningMRXSequatchie17 min
Apr 3, 5:15 AM EDTSevere Thunderstorm WarningMRXPolk45 min
Apr 3, 9:40 AM EDTLake Wind AdvisoryMRXAnderson, Bledsoe, Blount, Bradley, Campbell, Carter and 25 more10 hr
Apr 3, 9:40 AM EDTWind AdvisoryMRXBlount, Carter, Cocke, Greene, Johnson, Sevier and 1 more10 hr

Nearby

Severe Thunderstorm Warnings in Tennessee, 2006Every severe thunderstorm warning in 2006

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.