Alert archive / Tennessee / Flash Flood Warnings in 1998

Flash Flood Warning 80, NWS Morristown, TN

June 3, 1998Carter County, Johnson County, Tennessee

NWS Morristown, TN issued this flash flood warning at Jun 3, 1998, 8:37 PM EDT for Carter County, Johnson County, Tennessee. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 3, 1998, 8:37 PM EDT (00:37 UTC)
Expired
Jun 3, 1998, 10:40 PM EDT
In force
2 hr
Issued by
NWS Morristown, TN
Area
Whole counties

Counties Carter County, TN, Johnson County, TN

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.6 hours before the alert went out and 190 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 1998-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1245 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 1998-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1245 J/kg
Mixed-layer CIN
-64 J/kg
Mixed-layer LCL
1770 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
220 m²/s²
Significant tornado parameter
0.4
Supercell composite
3.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMRX 040038
FFWMRX
TNC019-091-040240-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
837 PM EDT WED JUN 3 1998

THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CARTER COUNTY IN EASTERN TENNESSEE
  JOHNSON COUNTY IN EASTERN TENNESSEE

* UNTIL 1040 PM EDT

* AT AT 835 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED THAT CLUSTERS OF THUNDERSTORMS WITH VERY HEAVY RAIN WERE
  LOCATED ALL OF CARTER COUNTY TENNESSEE AND SOUTHERN JOHNSON COUNTY
  TENNESSEE...MOVING SOUTHEAST AT 45 MPH.

* EXCESSIVE RAINFALL AT THE RATE OF 1 TO 1.5 INCHES PER HOUR WILL
  PRODUCE FLOODING ACROSS IN CARTER COUNTY...STONY CREEK AND THE
  COMMUNITY OF HUNTER THROUGH 1040 PM EDT. IN JOHNSON COUNTY NEAR
  MOUNTAIN CITY AND ALONG HIGHWAY 421.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

PDK

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jun 3, 8:00 PM EDT, 37 minutes earlier.

Area forecast discussion, Jun 3, 8:00 PM EDT, 37 minutes before
AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
800 PM EDT WED JUN 3 1998

A LITTLE BUSY WITH TORNADO WARNINGS AND SEVERE THUNDERSTORMS.  SUFFICE
IT TO SAY THAT THE MODELS IN GENERAL AGREEMENT THAT SFC BOUNDARY WILL
HANG AROUND UFN WITH SHORTWAVES LIFTING OUT OF SW UPR LOW.  PW'S IN THE
THE 1.6 TO 1.8 RANGE THU AND FRI AS FOCUS BECOME HEAVY RAIN/FF THREAT.

THE NEXT SEVERAL DAYS LOOKS LIKE UNSETTLED PERIODS INBETWEEN THE OUTBREAKS
OF SEVERE/HAZARDOUS WEATHER.

FORECASTS LOOK FINE...AS LONG AS PCPN IS LIKELY THU INTO FRI WITH MENTION
OF THUNDERSTORMS EACH PERIOD.  BELV WILL NEED FFA ON THU...BUT SUGGEST
WAITING FOR LATER SHIFT TO DO THAT.

ALREADY SFC MOISTURE FLUX CONVERGENCE IN SE MO IS INCREASING RAPIDLY ALONG
FRONT...IN PREPARATION FOR NEXT SHORT WAVE TO BRING IT THIS WAY.
BOYD...MRX

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 3, 8:02 PM EDTTornado WarningMRXCarter, Johnson63 min
Jun 3, 8:02 PM EDTTornado WarningMRXUnicoi, Washington63 min
Jun 4, 10:00 AM EDTSevere Thunderstorm WarningMRXJohnson, Sullivan60 min
Jun 4, 1:15 PM EDTSevere Thunderstorm WarningMRXBradley, Hamilton45 min
Jun 4, 2:56 PM EDTFlash Flood WarningMRXJohnson, Sullivan6 hr
Jun 4, 2:56 PM EDTFlash Flood WarningMRXCarter, Washington6 hr
Jun 4, 2:56 PM EDTFlash Flood WarningMRXHawkins6 hr

Nearby

Flash Flood Warnings in Tennessee, 1998Every flash flood warning in 1998

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.