Alert archive / Tennessee / Tornado Warnings in 1998
Tornado Warning 18, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Apr 16, 1998, 10:30 AM EDT for Anderson County, Scott County, Tennessee. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 16, 1998, 10:30 AM EDT (14:30 UTC)
- Expired
- Apr 16, 1998, 11:35 AM EDT
- In force
- 65 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
Counties Anderson County, TN, Scott County, TN
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 16, 8:00 AM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 2.5 hours before the alert went out and 202 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.
- Mixed-layer CAPE
- 76 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 585 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
793 WFUS01 KMRX 161431 RRA TORMRX TNC001-151-161530- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 1030 AM EDT THU APR 16 1998 THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A * TORNADO WARNING FOR... ANDERSON COUNTY IN EASTERN TENNESSEE SOUTHERN SCOTT COUNTY IN EASTERN TENNESSEE * UNTIL 1135 AM EDT * AT 1030 AM EDT ... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO 10 MILES WEST OF PETROS IN MORGAN COUNTY... MOVING EAST AT 40 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... PETROS BY 1040 AM EDT CLINTON BY 1100 AM EDT ABANDON MOBILE HOMES...THIS IS A DANGEROUS STORM...
What forecasters said that day
The local office's own words before this tornado 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 tornado warning went out at Apr 16, 10:18 AM EDT, 12 minutes earlier.
Area forecast discussion, Apr 16, 10:18 AM EDT, 12 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 1020 PM EDT THU APR 16 1998 BUSY MORNING WITH SEVERE CONVECTION MOVING IN FROM MIDDLE TN AND NEW STUFF FORMING OVER CWA. MODIFIED BNA SOUNDING LOOKS LIKE MORE OF A TORNADO SOUNDING AS CELLS MOVE DUE EAST INCREASING HELICITY LOCALLY. PARTS OF LINEAR CONVECTION WILL HAVE MORE STRAIGHT LINE WIND DAMAGE. IN ADDITION...NEARLY SATURATED SOUNDING WITH PW OF 1.42 AT BNA WILL RESULT IN FLOODING OF VARIOUS DEGREES AS ECHOES TRAIN. MOST WILL BE URBAN/SMALL STREAM FLOODING WITH ISOLATED FFW EXPECTED LATER. DO NOT RECOMMEND FFA ATTM...AS FLORA HAS THICKENED CONSIDERABLY AND BLV FLOODING WILL BE MORE SPOTTY THAN WIDESPREAD TODAY. TONIGHT MAY BE ANOTHER STORY AS SEVERE CONVECTION WEAKENS AND TEMP/DP SPREADS NARROW. AGREE WITH TEMPS AND POPS IN ZONES...WE MAY BE A LITTLE COOLER THAN FORCAST IN NORTHERN ZONES AS CLOUDS KEEP SUN OUT...BUT DONT BELV AN UPDATE IS IN ORDER.v GOTTA RUN. BB
In the hours before
Local storm report, Apr 16, 5:25 AM EDT, 5 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
525 AM EDT THU APR 16 1998
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
440 PM POUND AREA VA 0.75 INCH HAIL
04/15/98 WISE HAIL CAUSED SERIOUS TRAFFIC
PROBLEMS. SOME HAIL POSSIBLY
LARGER BUT COULD NOT BE VERIFIED.The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 10:02 AM EDT | Tornado Warning | MRX | Cumberland, Fentress, Morgan | 63 min |
| Apr 16, 10:33 AM EDT | Flash Flood Warning | MRX | Claiborne, Grainger, Hancock | 4 hr |
| Apr 16, 10:33 AM EDT | Flash Flood Warning | MRX | Cumberland, Fentress, Morgan, Scott | 4 hr |
| Apr 16, 10:33 AM EDT | Flash Flood Warning | MRX | Anderson, Campbell, Union | 4 hr |
| Apr 16, 12:27 PM EDT | Severe Thunderstorm Warning | MRX | Rhea | 33 min |
| Apr 16, 1:14 PM EDT | Severe Thunderstorm Warning | MRX | Monroe | 46 min |
| Apr 16, 4:13 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne | 47 min |
| Apr 16, 4:34 PM EDT | Severe Thunderstorm Warning | MRX | Hancock | 46 min |
| Apr 16, 4:39 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton | 61 min |
| Apr 16, 5:17 PM EDT | Severe Thunderstorm Warning | MRX | Bradley, McMinn, Meigs | 63 min |
| Apr 16, 5:17 PM EDT | Severe Thunderstorm Warning | MRX | Rhea | 63 min |
| Apr 16, 5:22 PM EDT | Tornado Warning | MRX | Meigs, Rhea | 33 min |
| Apr 16, 5:24 PM EDT | Severe Thunderstorm Warning | MRX | Sullivan | 46 min |
| Apr 16, 5:36 PM EDT | Severe Thunderstorm Warning | MRX | Loudon, Roane | 64 min |
| Apr 16, 5:39 PM EDT | Severe Thunderstorm Warning | MRX | McMinn, Polk | 61 min |
| Apr 16, 5:47 PM EDT | Tornado Warning | MRX | Polk | 63 min |
| Apr 16, 6:00 PM EDT | Severe Thunderstorm Warning | MRX | Anderson, Knox | 65 min |
| Apr 16, 6:00 PM EDT | Tornado Warning | MRX | Monroe | 45 min |
| Apr 16, 6:19 PM EDT | Severe Thunderstorm Warning | MRX | Cumberland | 1 min |
| Apr 16, 6:23 PM EDT | Severe Thunderstorm Warning | MRX | Cumberland | 57 min |
| Apr 16, 6:27 PM EDT | Severe Thunderstorm Warning | MRX | Grainger, Union | 58 min |
| Apr 16, 6:37 PM EDT | Severe Thunderstorm Warning | MRX | Fentress, Morgan | 63 min |
| Apr 16, 6:38 PM EDT | Tornado Warning | MRX | Cumberland | 62 min |
| Apr 16, 6:44 PM EDT | Severe Thunderstorm Warning | MRX | Monroe | 31 min |
| Apr 16, 6:49 PM EDT | Tornado Warning | MRX | Morgan | 66 min |
| Apr 16, 6:53 PM EDT | Tornado Warning | MRX | Claiborne | 67 min |
| Apr 16, 7:07 PM EDT | Tornado Warning | MRX | Hancock | 48 min |
| Apr 16, 7:12 PM EDT | Tornado Warning | MRX | Campbell | 33 min |
| Apr 16, 7:13 PM EDT | Severe Thunderstorm Warning | MRX | Bradley, Hamilton | 62 min |
| Apr 16, 7:13 PM EDT | Tornado Warning | MRX | Union | 37 min |
| Apr 16, 7:15 PM EDT | Tornado Warning | MRX | Anderson | 35 min |
| Apr 16, 7:21 PM EDT | Tornado Warning | MRX | Grainger | 34 min |
| Apr 16, 7:23 PM EDT | Tornado Warning | MRX | Scott | 32 min |
| Apr 16, 7:45 PM EDT | Severe Thunderstorm Warning | MRX | Campbell | 65 min |
| Apr 16, 7:48 PM EDT | Tornado Warning | MRX | Anderson, Union | 47 min |
| Apr 16, 7:53 PM EDT | Tornado Warning | MRX | Grainger | 47 min |
| Apr 16, 7:58 PM EDT | Tornado Warning | MRX | Claiborne | 47 min |
Nearby
Tornado Warnings in Tennessee, 1998Every tornado warning in 1998Tornadoes 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.