Alert archive / Tennessee / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 67, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Mar 28, 1997, 10:15 PM CST for Fentress County, Tennessee. It was in force for 45 min. 1 report 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
- Mar 28, 1997, 10:15 PM CST (04:15 UTC)
- Expired
- Mar 28, 1997, 11:00 PM CST
- In force
- 45 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Fentress County, TN
The radar
The Knoxville radar (KMRX), 139 km from the middle of the area, began a volume at 04:17 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 28, 10:40 PM CST | Hail 1.75 | Countywide, TN |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 28, 9:45 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 4.3 hours before the alert went out and 152 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
- 1331 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1544 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 223 m²/s²
- 0-3 km storm-relative helicity
- 390 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 11.6
The text
As transmitted, in the capitals the NWS used until 2016.
958 WUUS01 KMRX 290418 RRA SVRMRX TNC049-290500- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KNOXVILLE TRI CITIES TN 1115 PM EST (1015 PM CST) FRI MAR 28 1997 THE NATIONAL WEATHER SERVICE IN KNOXVILLE TRI CITIES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT EST (1100 PM CST) FOR PEOPLE IN THE FOLLOWING LOCATION... IN EAST TENNESSEE ...FENTRESS COUNTY DOPPLER RADAR INDICATES A DANGEROUS STORM JUST MOVING INTO FENTRESS COUNTY. THIS STORM WILL BE IN JAMESTOWN BY 1030 CST. PEOPLE IN THE PATH OF THIS STORM NEED TO TAKE ACTION IMMEDIATELY. A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY CHANGING WEATHER CONDITIONS.
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 Mar 28, 7:30 PM CST, 2 hours 45 minutes earlier.
Area forecast discussion, Mar 28, 7:30 PM CST, 2 hours 45 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 830 PM EST FRI MAR 28 1997 ALLS QUIET IN E TN...FOR NOW. KOHX 88D AND SPC MESOSCALE DISCUSSIONS PAINT OMINOUS PICTURE FOR MY CWA LATER TON/EARLY AM HRS SAT. STUBBORN WARM FNT GRAD LOSING ITS GRIP ON E TN W/LOW CLDS STILL HANGING IN AT CSV AND CHA. AS SW WINDS CONT TO STRENGTHEN...XPCT THESE LOW CLDS TO LIFT. TRI TEMP CLOSE TO FCST LOW...BUT DONT THINK IT WL FALL MUCH MORE AND WL PROB RISE ONCE SW WINDS KICK IN. TEMPS ACRS REST OF CWA PROB WONT FALL MUCH MORE EITHER. STRONG WINDS HAVE NOT YET KICKED IN...BUT PROB WILL IN NEXT FEW HRS. FOR NOW...AM WAITING FOR INEVITABLE WATCH TO BE ISSUED FOR E TN. NO CHGS TO RECOMMEND AT THIS POINT. HSA
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 10:26 PM CST | Severe Thunderstorm Warning | MRX | Anderson | 49 min |
| Mar 28, 10:39 PM CST | Severe Thunderstorm Warning | MRX | Morgan | 21 min |
| Mar 28, 10:58 PM CST | Severe Thunderstorm Warning | MRX | Morgan | 32 min |
| Mar 28, 11:07 PM CST | Severe Thunderstorm Warning | MRX | Knox | 53 min |
| Mar 28, 11:11 PM CST | Tornado Warning | MRX | Knox | 34 min |
| Mar 28, 11:17 PM CST | Severe Thunderstorm Warning | MRX | McMinn, Monroe | 43 min |
| Mar 28, 11:26 PM CST | Severe Thunderstorm Warning | MRX | Campbell | 49 min |
| Mar 28, 11:39 PM CST | Severe Thunderstorm Warning | MRX | Hamblen, Jefferson | 51 min |
| Mar 28, 11:42 PM CST | Severe Thunderstorm Warning | MRX | Hamilton | 63 min |
| Mar 29, 12:05 AM CST | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 25 min |
| Mar 29, 12:12 AM CST | Severe Thunderstorm Warning | MRX | McMinn | 33 min |
| Mar 29, 12:33 AM CST | Tornado Warning | MRX | Bradley | 27 min |
| Mar 29, 12:42 AM CST | Severe Thunderstorm Warning | MRX | Polk | 48 min |
| Mar 29, 1:01 AM CST | Tornado Warning | MRX | Polk | 29 min |
| Mar 29, 1:17 AM CST | Tornado Warning | MRX | Bradley | 13 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1997Every severe thunderstorm warning in 1997
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; radar from the NEXRAD Level II archive.