Alert archive / Tennessee / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 101, NWS Morristown, TN

June 4, 2002Hamilton County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 4, 2002, 6:16 PM EDT for Hamilton County, Tennessee. It was in force for 44 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, 6:16 PM EDT (22:16 UTC)
Expired: Jun 4, 2002, 7:00 PM EDT
In force: 44 min
Issued by: NWS Morristown, TN
Area: Whole counties

County Hamilton County, TN

What was reported inside it

Time	Report	Where	Remark
Jun 4, 6:40 PM EDT	Thunderstorm Wind	Hixon, 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, 10.3 hours before the alert went out and 167 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.

064 
WUUS54 KMRX 042216
SVRMRX
TNC065-042300-
/NEW.KMRX.SV.W.0131.042215-042300/

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

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

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

* UNTIL 700 PM EDT

* AT 611 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR HARRISON...OR 8 MILES EAST OF
  CHATTANOOGA...MOVING NORTH AROUND 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  MIDDLE VALLEY AROUND 620 PM EDT
  SHADY GROVE AROUND 635 PM EDT
  BIRCHWOOD AROUND 655 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.
  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.

SEEK A STURDY SHELTER IMMEDIATELY 

$$

LAT...LON 3501 8530 3502 8505 3534 8490 3541 8515

DMG

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, 3:15 PM EDT, 3 hours 1 minute earlier.

Area forecast discussion, Jun 4, 3:15 PM EDT, 3 hours 1 minute before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
315 PM EDT TUE JUN 4 2002

CHANGES IN THE OFFING OVER THE NEXT FEW DAYS IN TERMS OF TEMPS AND
PRECIP POTENTIAL. MODEL TIME HEIGHTS CONTINUE TO ADVERTISE A GRADUAL
INFLUX OF MOISTURE WITH TIME ESPECIALLY ABOVE THE BOUNDARY LAYER.
THE MOISTURE WILL CONTINUE TO INCREASE AS THE SURFACE FRONT
APPROACHES SOMETIME EARLY THURSDAY. THERE WILL BE NO REALLY
SIGNIFICANT FOCUSING MECHANISM UNTIL THE FROPA...BUT THE PERSISTENT
INSTABILITY COUPLED WITH THE INCREASED MOISTURE SUGGESTS SCATTERED
CONVECTION WILL BE POSSIBLE PARTICULARLY DURING PEAK HEATING HOURS.
HAVE CONTINUED THE CHANCE POPS THROUGH THE SECOND AND THIRD PERIODS.

MAIN PRECIP EVENT WILL COINCIDE WITH THE FRONTAL PASSAGE HOWEVER.
THIS FEATURE IS DEPICTED AS PROVIDING THE FIRST WIDESPREAD PRECIP
EVENT IN QUITE A WHILE. QPFS OF NEARLY AN INCH ARE BEING GENERALLY
PROJECTING BY MESOETA IN CONJUNCTION WITH THE SLOW-MOVING FRONT.
POST-FRONTAL HEIGHT FALLS ARE NOT PARTICULARLY DRAMATIC...BUT TEMPS
SHOULD FALL BACK TO NEAR CLIMATOLOGY BY THE END OF THE NEAR-TERM
PERIOD.

NGM/ETA/AVN MOS TEMPS ARE FAIRLY CLOSE AND APPEAR REASONABLE. WILL
GENERALLY FOLLOW THE MOS NUMBERS.

PRELIMINARY CCF FOLLOWS:
CHA   73  92  71  84 /  30  50  50  60
TYS   72  89  70  82 /  20  50  50  60
TRI   68  87  67  81 /  20  50  60  60
OQT   72  88  70  82 /  20  50  50  60

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

LCM

In the hours before

Local storm report, Jun 4, 2:23 PM EDT, 3 hours 53 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

Local storm report, Jun 4, 5:46 PM EDT, 30 minutes before

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

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

0400 PM    MURPHY                    NC   WIND DAMAGE
06/04/02   CHEROKEE                       TREES DOWN. REPORTED BY
                                          DISPATCH.

0500 PM    8 NW MURPHY               NC   FLASH FLOODS
06/04/02   CHEROKEE                       WATER OVER ROADS NEAR
                                          HIWASSEE DAM. REPORTED BY
                                          DISPATCH.

0500 PM    MURPHY                    NC   FLASH FLOODS
06/04/02   CHEROKEE                       MUD AND ROCK SLIDE ON HWY
                                          64E NEAR THE HOSPITAL.
                                          REPORTED BY DISPATCH.

DAE

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, 2:33 PM EDT	Severe Thunderstorm Warning	MRX	Sevier	42 min
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, 6:25 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.