Alert archive / Tennessee / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 216, NWS Morristown, TN

November 9, 2000Morgan County, Scott County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Nov 9, 2000, 3:30 PM EST for Morgan County, Scott County, Tennessee. It was in force for 30 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Nov 9, 2000, 3:30 PM EST (20:30 UTC)
Expired: Nov 9, 2000, 4:00 PM EST
In force: 30 min
Issued by: NWS Morristown, TN
Area: Whole counties

Counties Morgan County, TN, Scott County, TN

The radar

The Knoxville radar (KMRX), 106 km from the middle of the area, began a volume at 20:33 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
Nov 9, 3:40 PM EST	Thunderstorm Wind	Sunbright, TN
Nov 9, 4:10 PM EST	Thunderstorm Wind	Countywide, TN	Trees down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Nov 9, 3:00 PM EST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 8.5 hours before the alert went out and 324 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 30 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 585 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 417 m²/s²
0-3 km storm-relative helicity: 406 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.

175 
WUUS54 KMRX 092030
SVRMRX
TNC129-151-092100-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
330 PM EST THU NOV 9 2000

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  MORGAN COUNTY IN EASTERN TENNESSEE
  SCOTT COUNTY IN EASTERN TENNESSEE

* UNTIL 400 PM EST

* AT 221 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 13 MILES NORTHWEST OF BIG SOUTH
  FORK NATIONAL RECREATION AREA TO 14 MILES SOUTH OF HIGH POINT...OR
  FROM 15 MILES SOUTH OF MONTICELLO TO 6 MILES EAST OF CROSSVILLE...
  MOVING EAST AT 20 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  DEERLODGE AROUND 345 PM EST
  RUGBY AROUND 350 PM EST
  BIG SOUTH FORK NATIONAL RECREATION AREA AROUND 355 PM EST
  ELGIN AROUND 400 PM EST

THE SEVERE THUNDERSTORMS ARE CAPABLE OF PRODUCING...
  WINDS UP TO 60 MPH...WHICH COULD PUSH OVER SHALLOW ROOTED TREES AND
  BREAK LIMBS OFF OF TREES ABOUT THE SIZE OF YOUR WRIST.
  VERY HEAVY RAINFALL WHICH MAY CAUSE LOCALIZED FLOODING.

A TORNADO WATCH IS ALSO IN EFFECT. REMEMBER...TORNADOES CAN AND
OCCASIONALLY DO DEVELOP RAPIDLY IN SEVERE THUNDERSTORMS. IF
THREATENING WEATHER IS OBSERVED...MOVE TO SAFE SHELTER IMMEDIATELY.

$$

LAT...LON 3671 8492 3586 8498 3600 8446 3683 8438

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Nov 9, 10:26 AM EST, 5 hours 4 minutes earlier.

Area forecast discussion, Nov 9, 10:26 AM EST, 5 hours 4 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
1026 AM EST THU NOV 9 2000

NO UPDATES PLANNED THIS MORNING.  SURFACE LOW CURRENTLY NEAR PADUCAH
WITH THE COLD FRONT IN WESTERN MS.  PREFRONTAL TROUGH KICKING OFF
WIDESPREAD SHOWERS OVER OUR AREA THIS MORNING...WITH MOST OF THE
THUNDERSTORM ACTIVITY STAYING SOUTH WHERE BEST INSTABILITY REMAINS.
06Z MESOETA VERIFYING WELL WITH FEATURES.  SURFACE LOW WILL MOVE
NORTHEAST INTO OH VALLEY THIS AFTERNOON WITH COLD FRONT MOVING INTO
OUR AREA THIS AFTERNOON.  GRADIENT INCREASES WHICH SHOULD PROVIDE
GUSTY WINDS LATER TODAY.  PROBABLY SEE A BREAK IN PRECIP EARLY THIS
AFTERNOON BEFORE THE COLD FRONT NEARS.  H5 TROUGH BECOMES NEGATIVELY
TILTED AND UPPER LEVEL JET MAX IN A FAVORABLE QUAD WITH DEEP MOISTURE
IN THE AREA.  HAVE GOOD DYNAMICS FOR SEVERE STORMS AHEAD OF FRONT...
BUT DONT THINK ATMOSPHERE WILL HAVE TIME TO RECOVER THIS
AFTERNOON...SO SEVERE WEATHER SHOULD BE LIMITED.  COLD FRONT SHOULD
MOVE THROUGH AREA EARLY THIS EVENING.  NOT MUCH OF A WARM UP TODAY
WITH THE CLOUDS...TEMPERATURES LOOK GOOD.

.MRX...
NC...NONE.
TN...NONE.
VA...NONE.

GH

In the hours before

Local storm report, Nov 9, 11:28 AM EST, 4 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1128 AM EST THU NOV 9 2000

TIME(EST)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ...COUNTY LOCATION....

140 AM     COUNTYWIDE                TN   WIND DAMAGE
11/09/00   MARION                         REPORTED BY SHERIFF'S OFFICE
                                          SEVERAL TREES DOWNED
                                          ACROSS THE COUNTY.

230 AM     COUNTYWIDE                     WIND DAMAGE
11/09/00   MARION                         REPORTED BY SHERIFF'S OFFICE
                                          NUMEROUS TREES DOWNED
                                          ACROSS THE COUNTY
                                          BETWEEN 220-240 AM EST
                                          (120-140 AM CST).

240 AM     KIMBALL                        WIND DAMAGE
11/09/00   MARION                         REPORTED BY DISPATCH
                                          A TELEPHONE POLE,
                                          TELEPHONE LINES AND
                                          CABLE LINES DOWNED ON
                                          SPEERS ROAD.

END/FERRELL

Special weather statement, Nov 9, 11:43 AM EST, 3 hours 47 minutes before

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-005-
006-008-100000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MORRISTOWN TN
1143 AM EST THU NOV 9 2000

...THERE IS A CHANCE FOR SEVERE WEATHER ACROSS EAST TENNESSEE LATE
THIS AFTERNOON INTO THIS EVENING...

A STRONG UPPER LEVEL LOW PRESSURE SYSTEM AND SURFACE COLD FRONT
WILL GET CLOSER TO REGION THIS AFTERNOON...AND MOVE INTO THE REGION
THIS EVENING. A LINE OF DEVELOPING THUNDERSTORMS WERE OBSERVED IN
MID TENNESSEE BEFORE NOON NEAR THE COLD FRONT...AND THIS LINE IS
EXPECTED TO MARCH NEAR OR ALONG THE COLD FRONT INTO EASTERN TENNESSEE
BY THIS EVENING. AHEAD OF THE FRONT...THERE WILL BE ABUNDANT MOISTURE
AND LIMITED INSTABILITY IN PLACE.

THE MAIN THREAT FROM THESE STORMS WILL BE LARGE HAIL AND DAMAGING
WINDS. ALSO...VERY STRONG WINDS AT A FEW THOUSAND FEET UP MAY
GENERATE AN ISOLATED TORNADO. THE LINE IS EXPECTED TO MOVE RAPIDLY
EAST...SO ADDITIONAL HEAVY RAINFALL IS EXPECTED TO BE BRIEF.

EMERGENCY MANAGERS AND SKYWARN SPOTTERS MAY NEED TO BE ACTIVATED
LATER THIS AFTERNOON.

DM

Special weather statement, Nov 9, 12:26 PM EST, 3 hours 4 minutes before

TNZ081>084-098>100-092200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1225 PM EST (1125 AM CST) THU NOV 9 2000

...TORNADO WATCH IN EFFECT FOR SOUTHEAST TENNESSEE UNTIL 4 PM CST
(5 PM EST)...

A TORNADO WATCH IS IN EFFECT FOR PORTIONS OF SOUTHEAST TENNESSEE
THROUGH 4 PM CST (5 PM EST).  THE WATCH COVERS MARION...BLEDSOE...
SEQUATCHIE...HAMILTON...RHEA...MEIGS...AND BRADLEY COUNTIES.

A STRONG UPPER LEVEL LOW PRESSURE SYSTEM AND ASSOCIATED SURFACE COLD
FRONT WILL MOVE TOWARD EAST TENNESSEE THIS AFTERNOON...AND
MOVE THROUGH THE REGION THIS EVENING.  A LINE OF THUNDERSTORMS
ALONG AND AHEAD OF THIS FRONT IS EXPECTED TO MOVE INTO THE WATCH
AREA.  AHEAD OF THE FRONT...THERE WILL BE ABUNDANT MOISTURE
AND SUFFICIENT INSTABILITY IN PLACE FOR THE PRODUCTION OF SEVERE
WEATHER.

THE WINDS IN THE ATMOSPHERE THIS AFTERNOON WILL BE CAPABLE OF
SUPPORTING THUNDERSTORMS WHICH COULD BECOME TORNADIC.  STRONG
VERTICAL WIND SHEAR IS THE MAIN INGREDIENT.  THESE STORMS WILL ALSO
BE CAPABLE OF PRODUCING LARGE HAIL AND STRAIGHT-LINE DAMAGING WINDS.

PLEASE KEEP YOURSELF INFORMED THIS AFTERNOON ABOUT THIS DEVELOPING
AND POTENTIALLY DANGEROUS WEATHER XSITUATION.  STAY TUNED TO LOCAL OR
CABLE RADIO OR TV STATIONS...OR USE YOUR NOAA WEATHER RADIO...THE
VOICE OF THE NATIONAL WEATHER SERVICE.

SP

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 9, 1:25 AM EST	Severe Thunderstorm Warning	MRX	Marion	50 min
Nov 9, 2:11 AM EST	Severe Thunderstorm Warning	MRX	Marion	34 min
Nov 9, 2:20 PM EST	Severe Thunderstorm Warning	MRX	Marion	25 min
Nov 9, 2:39 PM EST	Severe Thunderstorm Warning	MRX	Bledsoe, Sequatchie	51 min
Nov 9, 2:50 PM EST	Severe Thunderstorm Warning	MRX	Hamilton	40 min
Nov 9, 3:14 PM EST	Severe Thunderstorm Warning	MRX	Meigs, Rhea	31 min
Nov 9, 3:55 PM EST	Severe Thunderstorm Warning	MRX	Bradley, McMinn	35 min
Nov 9, 3:55 PM EST	Severe Thunderstorm Warning	MRX	Roane	35 min
Nov 9, 4:02 PM EST	Severe Thunderstorm Warning	MRX	Anderson, Morgan, Scott	43 min
Nov 9, 4:02 PM EST	Severe Thunderstorm Warning	MRX	Campbell	43 min
Nov 9, 4:06 PM EST	Severe Thunderstorm Warning	MRX	Polk	39 min
Nov 9, 4:11 PM EST	Severe Thunderstorm Warning	MRX	Loudon, Monroe	49 min
Nov 9, 4:37 PM EST	Severe Thunderstorm Warning	MRX	Blount, Knox	38 min
Nov 9, 4:44 PM EST	Severe Thunderstorm Warning	MRX	Claiborne, Grainger, Union	46 min
Nov 9, 4:45 PM EST	Severe Thunderstorm Warning	MRX	Polk	45 min
Nov 9, 5:01 PM EST	Severe Thunderstorm Warning	MRX	Jefferson, Sevier	44 min
Nov 9, 5:13 PM EST	Severe Thunderstorm Warning	MRX	Hamblen, Hawkins	47 min
Nov 9, 5:13 PM EST	Severe Thunderstorm Warning	MRX	Hancock	47 min
Nov 9, 5:18 PM EST	Severe Thunderstorm Warning	MRX	Blount	27 min
Nov 9, 5:29 PM EST	Severe Thunderstorm Warning	MRX	Claiborne, Grainger	16 min
Nov 9, 5:57 PM EST	Severe Thunderstorm Warning	MRX	Hawkins, Sullivan, Washington	48 min
Nov 9, 5:57 PM EST	Severe Thunderstorm Warning	MRX	Hancock	48 min
Nov 9, 5:57 PM EST	Severe Thunderstorm Warning	MRX	Greene	48 min
Nov 9, 6:03 PM EST	Severe Thunderstorm Warning	MRX	Cocke	27 min
Nov 9, 6:30 PM EST	Severe Thunderstorm Warning	MRX	Unicoi	45 min
Nov 9, 6:44 PM EST	Severe Thunderstorm Warning	MRX	Sullivan	46 min
Nov 9, 6:44 PM EST	Severe Thunderstorm Warning	MRX	Carter, Johnson	46 min
Nov 9, 6:44 PM EST	Severe Thunderstorm Warning	MRX	Washington	46 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.