Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 133, NWS Morristown, TN

July 2, 2002Hamblen County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jul 2, 2002, 8:11 PM EDT for Hamblen County, Tennessee. It was in force for 49 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: Jul 2, 2002, 8:11 PM EDT (00:11 UTC)
Expired: Jul 2, 2002, 9:00 PM EDT
In force: 49 min
Issued by: NWS Morristown, TN
Area: Whole counties

County Hamblen County, TN

What was reported inside it

Time	Report	Where	Remark
Jul 2, 8:41 PM EDT	Thunderstorm Wind	Morristown, 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 00:00Z, 0.2 hours before the alert went out and 299 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: 2472 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 1215 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 37 m²/s²
0-3 km storm-relative helicity: 9 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.

327 
WUUS54 KMRX 030011
SVRMRX
TNC063-030100-
/NEW.KMRX.SV.W.0174.030010-030100/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
810 PM EDT TUE JUL 2 2002

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

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

* UNTIL 900 PM EDT

* AT 805 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 4 MILES NORTH OF PANTHER CREEK STATE PARK...OR
  6 MILES NORTHWEST OF MORRISTOWN...MOVING SOUTHWEST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PANTHER CREEK STATE PARK AROUND 825 PM EDT

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.
  HAIL UP TO 1 INCH IN DIAMETER...OR THE SIZE OF QUARTERS.
  VERY HEAVY RAINFALL WHICH MAY CAUSE LOCALIZED FLOODING.
  FREQUENT AND DEADLY CLOUD-TO-GROUND LIGHTNING.

$$

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 Jul 2, 3:45 PM EDT, 4 hours 26 minutes earlier.

Area forecast discussion, Jul 2, 3:45 PM EDT, 4 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
345 PM EDT TUE JUL 2 2002

AREA RADARS APPEAR SIMILAR TO YESTERDAY AT THIS TIME. 48-60 HR FCST
OFFERS MORE OF THE SAME AS UPR RIDGE REMAINS GENERALLY IN SAME
LOCATION ACROSS THE MIDWEST. THE RIDGE DOES SLIDE A BIT SE TWD THE
FA ON THU SO MAY BE A DEGREE WARMER MOST SPOTS. FLO REMAINS NE-E
THRU PD AND MODELS CONTINUE TO HINT AT WEAK VORTS DROPPING SW
ACROSS REGION IN THIS FLO REGIME. INSTABILITY STILL IMPRESSIVE
ALTHOUGH MAY DECREASE SLIGHTLY ON THU AS UPR RIDGE BUILDS CLOSER.
NOT CONFIDENT ENOUGH TO TWEAK POPS DOWN THOUGH ON THE 4TH. MAIN
QUESTION THIS FCST IS WILL CD FNT BUILD S CLOSE TO ENOUGH TO BRING
SIGNIFICANT INCREASE IN POP TO NRN PORTION OF FA LATER THU INTO THU
NITE. DONT BELIEVE WEAK FNT WILL BE ABLE TO MOV CLOSER TO FA UNTIL
FRI AND WILL ARRANGE FCST IN THIS MANNER. WILL INCREASE POP
SLIGHTLY ACROSS SW VA/NE TN ON THU/THU NITE TO INDICATE POSSIBLILTY
OF SOME GREATER COVERAGE OF TSRA IN ASSOCIATION WITH PRE-FRONTAL
TROF. ADDED POPS TO FRI FCST TO ALLOW FOR THIS BOUNDARY AND
ASSOCIATED LIFT.

CHA   72  94  72  94 /  30  30  20  30
TYS   72  92  71  93 /  30  30  20  30
TRI   66  90  65  91 /  40  30  20  40
OQT   72  92  71  93 /  30  30  20  30

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

In the hours before

Local storm report, Jul 2, 7:24 PM EDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
724 PM EDT TUE JUL 2 2002

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

0640 PM    COUNTYWIDE                TN   WIND DAMAGE
07/02/02   SEVIER                         TREES DOWN. REPORTED BY
                                          DISPATCH.

DAE

Local storm report, Jul 2, 7:38 PM EDT, 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
738 PM EDT TUE JUL 2 2002

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

0710 PM    WISE                      VA   .75 INCH HAIL
07/02/02   WISE                           REPORTED BY DISPATCH.

DAE

Local storm report, Jul 2, 7:51 PM EDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
751 PM EDT TUE JUL 2 2002

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

0700 PM    KINGSPORT                 TN   WIND DAMAGE
07/02/02   SULLIVAN                       TREES AND POWER LINES
                                          DOWN. REPORTED BY DISPATCH.

DAE

Local storm report, Jul 2, 7:55 PM EDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
755 PM EDT TUE JUL 2 2002

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

0740 PM    KNOXVILLE                 TN   WIND DAMAGE
07/02/02   KNOX                           TREES AND POWER LINES
                                          DOWN. REPORTED BY DISPATCH.

DAE

Local storm report, Jul 2, 8:00 PM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
800 PM EDT TUE JUL 2 2002

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

0755 PM    LOUISVILLE                TN   .75 INCH HAIL
07/02/02   BLOUNT                         REPORTED BY SPOTTER.

DAE

Local storm report, Jul 2, 8:10 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
810 PM EDT TUE JUL 2 2002

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

0740 PM    ELIZABETHTON              TN   WIND DAMAGE
07/02/02   CARTER                         TREES DOWN. REPORTED BY
                                          SPOTTER.

DAE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 8:14 PM EDT	Severe Thunderstorm Warning	MRX	Loudon	46 min
Jul 2, 8:33 PM EDT	Severe Thunderstorm Warning	MRX	Monroe	42 min
Jul 2, 8:42 PM EDT	Severe Thunderstorm Warning	MRX	Roane	48 min
Jul 2, 8:46 PM EDT	Severe Thunderstorm Warning	MRX	Grainger	44 min
Jul 2, 9:35 PM EDT	Severe Thunderstorm Warning	MRX	Anderson	40 min
Jul 2, 10:19 PM EDT	Severe Thunderstorm Warning	MRX	Loudon	41 min
Jul 3, 2:42 PM EDT	Severe Thunderstorm Warning	MRX	Carter	48 min
Jul 3, 3:01 PM EDT	Flash Flood Warning	MRX	Johnson	3 hr
Jul 3, 3:13 PM EDT	Severe Thunderstorm Warning	MRX	Unicoi, Washington	62 min
Jul 3, 3:37 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan	38 min
Jul 3, 4:04 PM EDT	Severe Thunderstorm Warning	MRX	Greene	41 min
Jul 3, 4:15 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan, Washington	45 min
Jul 3, 4:26 PM EDT	Severe Thunderstorm Warning	MRX	Hawkins	64 min
Jul 3, 4:45 PM EDT	Severe Thunderstorm Warning	MRX	Greene	45 min
Jul 3, 5:04 PM EDT	Severe Thunderstorm Warning	MRX	Greene	26 min
Jul 3, 5:11 PM EDT	Severe Thunderstorm Warning	MRX	Hancock	49 min
Jul 3, 6:12 PM EDT	Severe Thunderstorm Warning	MRX	Claiborne	48 min
Jul 3, 6:38 PM EDT	Severe Thunderstorm Warning	MRX	Union	52 min
Jul 3, 6:55 PM EDT	Severe Thunderstorm Warning	MRX	Knox	50 min
Jul 3, 7:11 PM EDT	Severe Thunderstorm Warning	MRX	Anderson	64 min
Jul 3, 7:28 PM EDT	Severe Thunderstorm Warning	MRX	Loudon, Roane	62 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.