Alert archive / Tennessee / Tornado Warnings in 1998
Tornado Warning 29, NWS Morristown, TN
NWS Morristown, TN issued this tornado warning at Apr 16, 1998, 7:21 PM EDT for Grainger County, Tennessee. It was in force for 34 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, 7:21 PM EDT (23:21 UTC)
- Expired
- Apr 16, 1998, 7:55 PM EDT
- In force
- 34 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Grainger County, TN
The radar
The Knoxville radar (KMRX), 15 km from the middle of the area, began a volume at 23:23 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 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, 2:00 PM EDT | Tornado Watch | SPC | 6 hr |
| Apr 16, 5:00 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 11.4 hours before the alert went out and 278 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.
205 WFUS01 KMRX 162322 RRA TORMRX TNC057-162355- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 721 PM EDT THU APR 16 1998 THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A * TORNADO WARNING FOR... GRAINGER COUNTY IN EASTERN TENNESSEE * UNTIL 755 PM EDT * AT 720 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A TORNADO OVER RUTLEDGE... MOVING NORTHEAST AT 45 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... AVONDALE AT 725 PM EDT BEAN STATION AT 730 PM EDT GO TO THE BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR
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, 3:30 PM EDT, 3 hours 51 minutes earlier.
Area forecast discussion, Apr 16, 3:30 PM EDT, 3 hours 51 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 330 PM EDT THU APR 16 1998 ONCE AGAIN...VERY BUSY LIKE EVERYONE ELSE. BIGGEST PROB O THE DAY IS TORNADO WATCH...BUT AS EVENING COMES THIS WILL DIMINISH AND FLASH FLOODING WILL BECOME THE THREAT OVERNIGHT. RECOMMEND FFA FOR ENTIRE CWA...THIS INCLUDES VA AND NC COUNTIES. REASONING INCLUDES EXTREME PW VALUES (1.5)...UNIDIRECTIONAL WIND PROFILE...AND THICKNESS DIFLUENCE WHICH ALLOW FOR REDEVELOPMENT OF CELLS AND TRAINING OF ECHOES. BELV POPS COULD BE RAISED TO REFLECT HEAVY RAIN OVER NIGHT. ALL AREAS ARE GOING TO RECEIVE MEASURABLE RAIN TONIGHT AND TOMORROW. BB
In the hours before
Local storm report, Apr 16, 1:24 PM EDT, 5 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
124 PM EDT THU APR 16 1998
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1240 PM GRANDVIEW MOUNTAIN TN TORNADO
04/16/98 RHEA RHEA COUNTY DISPATCH
REPORTED PUBLIC SIGHTING OF
A FUNN\EL CLOUD OVER
GRANDVIEW MOUNTAIN MOVING
TOWARD SPRING CITY.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, 10:30 AM EDT | Tornado Warning | MRX | Anderson, Scott | 65 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, 7:23 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; radar from the NEXRAD Level II archive.