Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 88, NWS Morristown, TN

June 4, 2002Sevier County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 4, 2002, 2:33 PM EDT for Sevier County, Tennessee. It was in force for 42 min. 1 report 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: Jun 4, 2002, 2:33 PM EDT (18:33 UTC)
Expired: Jun 4, 2002, 3:15 PM EDT
In force: 42 min
Issued by: NWS Morristown, TN
Area: Whole counties

County Sevier County, TN

The radar

The Knoxville radar (KMRX), 44 km from the middle of the area, began a volume at 18:34 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
Jun 4, 2:55 PM EDT	Thunderstorm Wind	Gatlinburg, TN

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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.6 hours before the alert went out and 279 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: 1566 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 1296 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 70 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.

007 
WUUS54 KMRX 041833
SVRMRX
TNC155-041915-
/NEW.KMRX.SV.W.0116.041833-041915/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
233 PM EDT TUE JUN 4 2002

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SEVIER COUNTY IN EAST TENNESSEE

* UNTIL 315 PM EDT

* AT 230 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 3 MILES SOUTHEAST OF PITTMAN CENTER...OR 8
  MILES EAST OF GATLINBURG...MOVING NORTH AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PITTMAN CENTER AROUND 240 PM EDT
  BIRD CROSSING AROUND 315 PM EDT

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  WINDS UP TO 70 MPH...WHICH COULD PUSH OVER SHALLOW ROOTED TREES...
  AND DAMAGE CHIMNEYS AND TV ANTENNAS.
  DAMAGING HAIL UP TO 1 3/4 INCH IN DIAMETER...OR THE SIZE OF
  GOLFBALLS.
  VERY HEAVY RAINFALL WHICH MAY CAUSE LOCALIZED FLOODING.
  FREQUENT AND DEADLY CLOUD-TO-GROUND LIGHTNING.

SEEK A STURDY SHELTER IMMEDIATELY 

$$

LAT...LON 3562 8345 3569 8327 3590 8329 3593 8348

SP

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 Jun 4, 9:45 AM EDT, 4 hours 48 minutes earlier.

Area forecast discussion, Jun 4, 9:45 AM EDT, 4 hours 48 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
945 AM EDT TUE JUN 4 2002

NO CHANGES WARRANTED. SATELLITE IMAGES SHOW MOISTURE FEED FROM
THE GULF OF MEXICO INTO THE SOUTHEASTERN CONUS. MOST OF THIS
MOISTURE IS BEING FUNNELED UP THE EASTERN SIDE OF THE APPALACHIANS
BUT STILL EXPECT SOME TO INFILTRATE EAST TENNESSEE. THUS CHANCE POP
SEEMS REASONABLE ESPECIALLY IN LIGHT OF THE INSTABILITY PRESENT.
TEMPS APPEAR ON TRACK TO APPROACH RECORD HIGHS THIS AFTERNOON PER MOS
AND LAMP DATA.

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

LCM

In the hours before

Local storm report, Jun 4, 2:23 PM EDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
223 PM EDT TUE JUN 4 2002

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

0131 PM    OCOEE                     TN   .75 INCH HAIL
06/04/02   POLK                           REPORTED BY TVA.

0215 PM    OCOEE                     TN   .75 INCH HAIL
06/04/02   POLK                           REPORTED BY TVA.

GM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 4, 1:30 PM EDT	Severe Thunderstorm Warning	MRX	Polk	30 min
Jun 4, 2:00 PM EDT	Severe Thunderstorm Warning	MRX	Polk	45 min
Jun 4, 2:23 PM EDT	Flash Flood Warning	MRX	Polk	3 hr
Jun 4, 2:41 PM EDT	Severe Thunderstorm Warning	MRX	Monroe	64 min
Jun 4, 2:57 PM EDT	Severe Thunderstorm Warning	MRX	Cocke	48 min
Jun 4, 3:02 PM EDT	Flash Flood Warning	MRX	Sevier	3 hr
Jun 4, 3:33 PM EDT	Severe Thunderstorm Warning	MRX	Blount	57 min
Jun 4, 4:44 PM EDT	Severe Thunderstorm Warning	MRX	Meigs	31 min
Jun 4, 4:50 PM EDT	Severe Thunderstorm Warning	MRX	McMinn	40 min
Jun 4, 5:05 PM EDT	Severe Thunderstorm Warning	MRX	Marion	40 min
Jun 4, 5:13 PM EDT	Flash Flood Warning	MRX	Polk	2 hr
Jun 4, 5:18 PM EDT	Severe Thunderstorm Warning	MRX	Morgan	42 min
Jun 4, 5:21 PM EDT	Severe Thunderstorm Warning	MRX	Meigs	39 min
Jun 4, 5:24 PM EDT	Severe Thunderstorm Warning	MRX	Bradley, Hamilton	51 min
Jun 4, 5:46 PM EDT	Severe Thunderstorm Warning	MRX	Scott	44 min
Jun 4, 6:00 PM EDT	Severe Thunderstorm Warning	MRX	Meigs, Rhea	45 min
Jun 4, 6:16 PM EDT	Severe Thunderstorm Warning	MRX	Hamilton	44 min
Jun 4, 6:25 PM EDT	Flash Flood Warning	MRX	Hamilton	2 hr
Jun 4, 6:38 PM EDT	Severe Thunderstorm Warning	MRX	Bradley	52 min
Jun 4, 7:21 PM EDT	Flash Flood Warning	MRX	Bradley	114 min
Jun 4, 7:32 PM EDT	Severe Thunderstorm Warning	MRX	Polk	43 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2002 Every severe thunderstorm warning in 2002

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.