Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 30, NWS Morristown, TN

April 28, 2002Marion County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Apr 28, 2002, 5:29 PM CDT for Marion County, Tennessee. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 28, 2002, 5:29 PM CDT (22:29 UTC)
Expired: Apr 28, 2002, 6:15 PM CDT
In force: 46 min
Issued by: NWS Morristown, TN
Area: Whole counties

County Marion County, TN

The watch it was issued in

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

Issued	Product	Office	Lasted
Apr 28, 1:15 PM CDT	Tornado Watch	SPC	5 hr
Apr 28, 4:00 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 10.5 hours before the alert went out and 142 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: 998 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 851 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMRX 282229
SVRMRX
TNC115-282315-
/NEW.KMRX.SV.W.0047.282229-282315/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
529 PM CDT SUN APR 28 2002

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

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

* UNTIL 615 PM CDT

* AT 527 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 15 MILES NORTHWEST OF SOUTH PITTSBURG...OR 11
  MILES SOUTHEAST OF WINCHESTER...MOVING EAST AT 45 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SOUTH PITTSBURG AROUND 545 PM CDT
  JASPER AROUND 550 PM CDT
  HALETOWN (GUILD) AROUND 555 PM CDT

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING...
  WINDS UP TO 60 MPH...WHICH COULD PUSH OVER SHALLOW ROOTED TREES AND
  BREAK TREE LIMBS ABOUT THE SIZE OF YOUR WRIST.
  DAMAGING HAIL UP TO 1 3/4 INCH IN DIAMETER...OR THE SIZE OF
  GOLFBALLS.

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 3523 8599 3506 8607 3495 8549 3513 8540

TG

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 Apr 28, 1:00 PM CDT, 4 hours 29 minutes earlier.

Area forecast discussion, Apr 28, 1:00 PM CDT, 4 hours 29 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
200 PM EDT SUN APR 28 2002

A VERY ACTIVE AFTERNOON IS EXPECTED WITH CAPES WELL OVER 2500 AND
LIFTED INDICES -4 TO -6 WILL ALLOW SEVERE THUNDERSTORMS TO CONTINUE
INTO THE EVENING HOURS.  THE COLD FRONT WILL EXIT THE AREA BY
MIDNIGHT AS WILL THE THUNDERSTORMS.  CLOUDS WILL LINGER TILL AROUND
SUNRISE MONDAY WITH CLEARING SKIES.  TUESDAY IS SETTING ITSELF UP
FOR ANOTHER INTERESTING DAY...STAY TUNED FOR LATER DEVELOPMENTS.

IN THE EXTENDED...MOIST AND JUICY WEDNESDAY - FRIDAY MORNING...THEN
CLEARING.

MODELS APPEAR IN CLOSE AGREEMENT IN HANDLING MUCH OF THE FORECAST
PERIOD SO HAVE NOT STRAYED VERY FAR FROM GUIDANCE.

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

In the hours before

Local storm report, Apr 28, 3:32 PM CDT, 1 hour 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
432 PM EDT SUN APR 28 2002

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

0155 PM    ONEIDA                    TN   1.75 INCH HAIL
04/28/02   SCOTT                          HAIL BROKE WINDSHIELDS,
                                          SKYLIGHTS, AND CAUSED MUCH
                                          DAMAGE TO VEHICLES.
                                          REPORTED BY SPOTTERS.

0245 PM    KNOX                      TN   1.00 INCH HAIL
04/28/02   KNOX                           WEST KNOX COUNTY. REPORTED
                                          BY SPOTTER.

0245 PM    COUNTY WIDE               TN   WIND DAMAGE
04/28/02   ROANE                          TREES DOWN COUNTY WIDE.
                                          REPORTED BY LAW
                                          ENFORCEMENT.

0320 PM    ROCKFORD                  TN   WIND DAMAGE
04/28/02   BLOUNT                         TREES AND POWER LINES
                                          DOWN. REPORT OF FUNNEL
                                          CLOUD. REPORTED BY SPOTTER.

0255 PM    WEST KNOX COUNTY          TN   1.25 INCH HAIL
04/28/02   KNOX                           ALSO FUNNEL CLOUD REPORTED
                                          WEST PART OF COUNTY.
                                          REPORTED BY SPOTTER AND LAW
                                          ENFORCEMENT.

0320 PM    3 WEST JONESVILLE         VA   1.75 INCH HAIL
04/28/02   LEE                            NICKLE AND GOLF BALL SIZED
                                          HAIL AT JONESVILLE AND ROSE
                                          HILL. REPORTED BY SPOTTERS.

0330 PM    5 WEST BEAN STATION       TN   .75 INCH HAIL
04/28/02   GRAINGER                       REPORTED BY LAW
                                          ENFORCEMENT.

0325 PM    SEVIERVILLE               TN   1.00 INCH HAIL
04/28/02   SEVIER                         WEST OF SEVIERVILLE.
                                          REPORTED BY LAW
                                          ENFORCEMENT.

0345 PM    GATLINBURG                TN   1.75 INCH HAIL
04/28/02   SEVIER                         REPORTED BY SPOTTER.

0355 PM    MOSHEIM                   TN   1.00 INCH HAIL
04/28/02   GREENE                         ALSO REPORTED AT BULLS
                                          GAP. REPORTED BY SPOTTERS.

Local storm report, Apr 28, 5:12 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
612 PM EDT SUN APR 28 2002

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

0250 PM    COUNTY WIDE               TN   WIND DAMAGE
04/28/02   ANDERSON                       A FEW TREES DOWN IN FAR
                                          NORTH PART OF COUNTY AND
                                          ALSO FAR SOUTH. REPORTED BY
                                          LAW ENFORCEMENT.

0345 PM    GATE CITY                 VA   WIND DAMAGE
04/28/02   SCOTT                          TREES DOWN. REPORTED BY
                                          LAW ENFORCEMENT.

0326 PM    MORRISTOWN                TN   1.00 INCH HAIL
04/28/02   HAMBLEN                        MAINLY IN EASTERN HAMBLEN
                                          COUNTY NEAR FALL CREEK
                                          AREA. REPORTED BY LAW
                                          ENFORCEMENT.

0340 PM    STANLEY VALLEY ROAD       TN   .75 INCH HAIL
04/28/02   HAWKINS                        REPORTED BY LAW
                                          ENFORCEMENT.

0415 PM    BRISTOL                   TN   .75 INCH HAIL
04/28/02   SULLIVAN                       NEAR SPEEDWAY. REPORTED BY
                                          LAW ENFORCEMENT.

0415 PM    BENHAM                    VA   WIND DAMAGE
04/28/02   WASHINGTON                     TREES DOWN. REPORTED BY
                                          LAW ENFORCEMENT.

0410 PM    GERMAN CREEK              TN   2.75 INCH HAIL
04/28/02   GRAINGER                       REPORTED BY LAW
                                          ENFORCEMENT.

0420 PM    MOSHEIM                   TN   .75 INCH HAIL
04/28/02   GREENE                         REPORTED BY LAW
                                          ENFORCEMENT.

0415 PM    EASTERN PART COUNTY       TN   1.75 INCH HAIL
04/28/02   HAMBLEN                        NEAR CHEROKEE PARK.
                                          REPORTED BY LAW
                                          ENFORCEMENT.

0445 PM    MOUNTAIN CITY             TN   .88 INCH HAIL
04/28/02   JOHNSON                        ON HIGHWAY 421. REPORTED
                                          BY LAW ENFORCEMENT.

0500 PM    SPIVEY                    TN   1.00 INCH HAIL
04/28/02   UNICOI                         REPORTED BY LAW
                                          ENFORCEMENT.

0530 PM    DAYTON                    TN   WIND DAMAGE
04/28/02   RHEA                           TREES AND POWER LINES DOWN
                                          NEAR DAYTON. REPORTED BY
                                          LAW ENFORCEMENT.

GM

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 9:13 AM CDT	Severe Thunderstorm Warning	MRX	Bledsoe, Rhea	47 min
Apr 28, 12:45 PM CDT	Severe Thunderstorm Warning	MRX	Scott	30 min
Apr 28, 1:13 PM CDT	Severe Thunderstorm Warning	MRX	Campbell	47 min
Apr 28, 1:33 PM CDT	Tornado Warning	MRX	Campbell, Union	42 min
Apr 28, 1:38 PM CDT	Severe Thunderstorm Warning	MRX	Anderson, Knox, Loudon, Roane	52 min
Apr 28, 1:40 PM CDT	Severe Thunderstorm Warning	MRX	Scott	35 min
Apr 28, 1:54 PM CDT	Tornado Warning	MRX	Blount, Knox	51 min
Apr 28, 1:59 PM CDT	Severe Thunderstorm Warning	MRX	Claiborne, Grainger	46 min
Apr 28, 2:19 PM CDT	Tornado Warning	MRX	Sevier	41 min
Apr 28, 2:25 PM CDT	Severe Thunderstorm Warning	MRX	Greene, Hamblen, Hawkins	50 min
Apr 28, 2:45 PM CDT	Severe Thunderstorm Warning	MRX	Sullivan	45 min
Apr 28, 2:54 PM CDT	Severe Thunderstorm Warning	MRX	Grainger	21 min
Apr 28, 3:07 PM CDT	Severe Thunderstorm Warning	MRX	Cocke, Greene, Hamblen, Jefferson	38 min
Apr 28, 3:21 PM CDT	Severe Thunderstorm Warning	MRX	Campbell, Claiborne, Johnson	39 min
Apr 28, 3:40 PM CDT	Severe Thunderstorm Warning	MRX	Bledsoe	35 min
Apr 28, 3:52 PM CDT	Severe Thunderstorm Warning	MRX	Greene, Unicoi, Washington	23 min
Apr 28, 4:06 PM CDT	Severe Thunderstorm Warning	MRX	Meigs, Rhea	39 min
Apr 28, 4:30 PM CDT	Severe Thunderstorm Warning	MRX	Greene, Hawkins	45 min
Apr 28, 4:39 PM CDT	Tornado Warning	MRX	Greene, Hawkins	51 min
Apr 28, 4:54 PM CDT	Severe Thunderstorm Warning	MRX	Bledsoe	36 min
Apr 28, 4:56 PM CDT	Severe Thunderstorm Warning	MRX	Washington	34 min
Apr 28, 5:12 PM CDT	Severe Thunderstorm Warning	MRX	Carter, Unicoi	48 min
Apr 28, 5:13 PM CDT	Severe Thunderstorm Warning	MRX	Meigs, Rhea	47 min
Apr 28, 5:42 PM CDT	Severe Thunderstorm Warning	MRX	McMinn	33 min
Apr 28, 6:04 PM CDT	Severe Thunderstorm Warning	MRX	Monroe	26 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; the sounding from the Mesonet's radiosonde archive.