Alert archive / Tennessee / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 200, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 25, 1997, 3:59 PM EDT for Sevier County, Tennessee. It was in force for 61 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
- Jun 25, 1997, 3:59 PM EDT (19:59 UTC)
- Expired
- Jun 25, 1997, 5:00 PM EDT
- In force
- 61 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Sevier County, TN
The radar
The Knoxville radar (KMRX), 44 km from the middle of the area, began a volume at 19:51 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
Nashville Metro, TN (KBNA), launched 12:00Z, 8.0 hours before the alert went out and 279 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
- 636 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 1043 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Jun 25, 3:17 PM EDT, 42 minutes earlier.
Area forecast discussion, Jun 25, 3:17 PM EDT, 42 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 315 PM EDT WED JUN 25 1997 TON...MUCH OF CURRENT TSTM ACTIVITY WL DISSIPATE DURING THE EVE HRS. HOWEVER LOWER GULF CST VORT MAX BEGINS TO MOVE N & E DURING OVRNGT HRS. NGM A LTL FASTER THAN ETA. NEVERTHELESS WOULD KEEP IN A SLGT CHC FOR OVRNGT. BOTH FWC/FAN POPS LOOK WAY OVERDONE. THU...FRNT SLOWLY SAGS SE W/VORT SLIDING ACRS TN DURING THE DAY. W/SUCH HIGH PW VALUES...VORT MAX PASSING THRU...AFTN HTG...LIFT PROVIDED BY FRNT...I XPCT GOOD COVERAGE OF TSTMS. TIME SXNS SHOW DEEP LIFT DURING MAX HTG TIME IN THE AFTN. LIKELY POPS LOOK GOOD. THU NGT...FRONT MOVES INTO CWA FM THE NW. BY 12Z FRI...ETA WANTS TO PUSH IT TO THE TN/GA BRDR...NGM INTO NRN GA/AL. AM A LTL WARY OF HOW FAR S IT WL ACTUALLY GET W/BEST PUSH WELL TO OUR N. PREFER SLGTLY HIGHER FAN POPS. FRI...VORT AXIS WL BE TO THE E. HWVR W/FRONT SOMEWHERE IN THE VCNTY OF S PART OF CWA...WOULD GO W/SLGT CHC POPS FOR SE TN/SRN MTS & DRY ELSW. ALL UNDER PTLY SUNNY SKIES. TEMP-WISE...FWC/FAN IN GOOD AGREEMENT THRU 36 HRS. PREFER WARMER FWC FOR FRI DUE TO INCRS IN SUNSHINE OVER THURS. HSA
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 6:03 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne | 57 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.