Alert archive / Tennessee / Flash Flood Warnings in 1998

Flash Flood Warning 84, NWS Morristown, TN

June 4, 1998Hawkins County, Tennessee

NWS Morristown, TN issued this flash flood warning at Jun 4, 1998, 2:56 PM EDT for Hawkins County, Tennessee. It was in force for 6 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 4, 1998, 2:56 PM EDT (18:56 UTC)
Expired
Jun 4, 1998, 9:00 PM EDT
In force
6 hr
Issued by
NWS Morristown, TN
Area
Whole counties

County Hawkins County, TN

The radar

The Knoxville radar (KMRX), 51 km from the middle of the area, began a volume at 18:55 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.9 hours before the alert went out and 276 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 12:00Z on 1998-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 1998-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1332 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
195 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 
TTAA00 KMRX 041858 COR
FFWMRX
TNC019-073-091-163-179-VAC105-167-169-191-195-050055-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING...CORRECTED
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
256 PM EDT THU JUN 4 1998

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

* FLASH FLOOD WARNING FOR...
  CARTER COUNTY IN EASTERN TENNESSEE
  HAWKINS COUNTY IN EASTERN TENNESSEE
  JOHNSON COUNTY IN EASTERN TENNESSEE
  SULLIVAN COUNTY IN EASTERN TENNESSEE
  WASHINGTON COUNTY IN EASTERN TENNESSEE
  LEE COUNTY IN SOUTHWESTERN VIRGINIA
  RUSSELL COUNTY IN SOUTHWESTERN VIRGINIA
  SCOTT COUNTY IN SOUTHWESTERN VIRGINIA
  WASHINGTON COUNTY IN SOUTHWESTERN VIRGINIA
  WISE COUNTY IN SOUTHWESTERN VIRGINIA

* UNTIL 900 PM EDT

* AT 250 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THAT A LARGE AREA OF SHOWERS AND THUNDERSTORMS WAS MOVING INTO
  SOUTHWEST VIRGINIA AND NORTHEAST TENNESSEE... MOVING EAST AT 35
  MPH. THESE SHOWERS AND THUNDERSTORMS WILL MOVE OVER AREAS ALREADY
  SATURATED BY HEAVY RAINS LAST NIGHT AND THIS MORNING.


* EXCESSIVE RAINFALL AT THE RATE OF ONE INCH PER HOUR WILL PRODUCE
  FLOODING ACROSS SOUTHWEST VIRGINIA AND NORTHEAST TENNESSEE
  THROUGH 900 PM VEDT.

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

PDK/JL

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 4, 9:45 AM EDT, 5 hours 11 minutes earlier.

Area forecast discussion, Jun 4, 9:45 AM EDT, 5 hours 11 minutes before
AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
945 AM EDT THU JUN 4 1998

KHTX AND KMRX 88DS SHOWING THUNDERSTORMS ENTERING EAST TN.  SURFACE
FRONT PROVIDING A FOCUS FOR ACTIVITY.  BNA 12Z SOUNDING INDICATING
VERY UNSTABLE CONDITIONS TODAY.  SHORTWAVE EXPECTED TO PASS OVER EAST
TN LATE THIS AFTERNOON...SO THINK LIKELY POPS FOR THUNDERSTORMS OVER
THE ENTIRE CWA LOOKS GOOD FOR THE REST OF TODAY.  MAY GET SOME BREAKS
OF SUNSHINE THIS AFTERNOON AFTER THIS FIRST BATCH OF CONVECTION MOVES
THROUGH...BUT CU WILL DEVELOP QUICKLY.  TEMPERATURES SHOULD BE OK.

RDU AND CRW...MAY WANT TO RAISE POPS TO 60% FOR TODAY.

GH

In the hours before

Local storm report, Jun 4, 12:05 PM EDT, 2 hours 51 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
1202 AM EDT THU JUN 4 1998

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION..6..

1115 AM    HANGING DOG AREA          NC   WIND DAMAGE
06/04/98   CHEROKEE                       TREES DOWN HANGING DOG AND
                                          ED GRAVES ROAD AREAS

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 3, 8:37 PM EDTFlash Flood WarningMRXCarter, Johnson2 hr
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

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; radar from the NEXRAD Level II archive.