Alert archive / North Carolina / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 80, NWS Morristown, TN

June 25, 2001Cherokee County, North Carolina; Polk County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 25, 2001, 2:38 PM EDT for Cherokee County, North Carolina; Polk County, Tennessee. It was in force for 52 min. 4 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: Jun 25, 2001, 2:38 PM EDT (18:38 UTC)
Expired: Jun 25, 2001, 3:30 PM EDT
In force: 52 min
Issued by: NWS Morristown, TN
Area: Whole counties

Counties Cherokee County, NC, Polk County, TN

What was reported inside it

Time	Report	Where	Remark
Jun 25, 2:55 PM EDT	Hail 0.75	Violet, NC	Near Appalachia Lake.
Jun 25, 2:55 PM EDT	Thunderstorm Wind	Violet, NC
Jun 25, 3:00 PM EDT	Hail 0.75	Farner, TN
Jun 25, 3:00 PM EDT	Thunderstorm Wind	Farner, TN	Several 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 nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 6.6 hours before the alert went out and 196 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: 239 J/kg
Mixed-layer CIN: -83 J/kg
Mixed-layer LCL: 886 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -8 m²/s²
0-3 km storm-relative helicity: -10 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KMRX 251838
SVRMRX
NCC039-TNC139-251930-
/NEW.KMRX.SV.W.0159.251838-251930/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MORRISTOWN TN
238 PM EDT MON JUN 25 2001

THE NATIONAL WEATHER SERVICE IN MORRISTOWN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN POLK COUNTY IN EAST TENNESSEE
  WESTERN CHEROKEE COUNTY IN SOUTHWEST NORTH CAROLINA

* UNTIL 330 PM EDT

* AT 238 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM NEAR VIOLET...OR 12 MILES NORTHWEST OF
  MURPHY...MOVING WEST AT 5 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TURTLETOWN AROUND 330 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.

AVOID USING THE TELEPHONE OR OTHER ELECTRICAL EQUIPMENT WHILE
LIGHTNING IS IN THE AREA.

$$

LAT...LON 3514 8408 3523 8416 3531 8443 3500 8440

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 25, 10:40 AM EDT, 3 hours 58 minutes earlier.

Area forecast discussion, Jun 25, 10:40 AM EDT, 3 hours 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
419 AM EDT MON JUN 25 2001

UPPER LOW JUST TO OUR EAST.  VORTICITY MAXES TRIGGERING SHOWERS IN
NE ZONES AND CHEROKEE AND CLAY.  CLOUDS WILL CONTINUE PUSHING INTO
CWA THIS AFTERNOON AS UPPER LOW SHIFT WEST....WILL GO WITH INCREASING
CLOUDS WHERE ITS NOT MOSTLY CLOUDY ALREADY.  WITH CLOUDS...WILL
UPDATE TO LOWER TEMPERATURES A BIT IN THE CENTRAL AND NORTH.  POPS
LOOK GOOD. WITH THE COLD UPPER LOW OVER THE AREA...COULD SEE ISOLATED
SEVERE STORMS THIS AFTERNOON AND EVENING...BUT THINK MOISTURE TOO
LIMITED FOR WIDESPREAD ACTIVITY.

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

GH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 1:48 PM EDT	Severe Thunderstorm Warning	MRX	Knox	27 min
Jun 25, 2:26 PM EDT	Severe Thunderstorm Warning	MRX	Blount	64 min
Jun 25, 3:14 PM EDT	Severe Thunderstorm Warning	MRX	Greene	61 min
Jun 25, 6:06 PM EDT	Severe Thunderstorm Warning	MRX	Sullivan	39 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2001 Severe Thunderstorm Warnings in Tennessee, 2001 Every severe thunderstorm warning in 2001

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.