Alert archive / Tennessee / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 10, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 18, 1992, 4:28 PM EDT for Morgan County, Tennessee. It was in force for 47 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
- Jun 18, 1992, 4:28 PM EDT (20:28 UTC)
- Expired
- Jun 18, 1992, 5:15 PM EDT
- In force
- 47 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Morgan County, TN
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 4:30 PM EDT | Hail 1 | Morgan, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 8.5 hours before the alert went out and 175 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
- 957 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 578 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 269 m²/s²
- 0-3 km storm-relative helicity
- 295 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 7.0
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.
In the hours before
Special weather statement, Jun 18, 2:38 PM EDT, 1 hour 50 minutes before
TNZ-002-004-005-008-182000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE KNOXVILLE TN 235 PM EDT(135 PM EDT) THU JUN 18 1992 ...SEVERE THUNDERSTORM WATCH NUMBER 397 UNTIL 8 PM EDT(7PM CDT)... AT 230 PM EDT(125 PM CDT) HEAVY THUNDERSTORMS WERE MOVING ONTO THE NORTHERN PORTION OF THE CUMBERLAND PLATEAU. THESE THUNDERSTORMS WILL LIKELY CONTAIN VERY HEAVY RAIN...DANGEROUS LIGHTNING AND STRONG GUSTY WINDS AS THEY MOVE THROUGH. THE STRONG THUNDERSTORMS ARE MOVING TO THE EAST AT 30 MPH. WHEN THE STORMS MOVE INTO YOUR AREA MOVE TO A PLACE OF SAFETY INSIDE A STRONG BUILDING IF POSSIBLE. THESE THUNDERSTORMS ARE CAPABLE OF SEVERE WEATHER...IF YOU OBSERVE LARGE HAIL OR DAMAGING THUNDERSTORM WINDS...NOTIFY YOUR NEAREST LAW ENFORCEMENT OFFICE AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE. ALL TRAINED WEATHER SPOTTERS ARE URGED TO BE ON THE ALERT FOR SEVERE WEATHER AND STAY TUNED FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Jun 18, 4:01 PM EDT, 27 minutes before
GAZ001-TNZ003-005-006-182100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CHATTANOOGA TN 405 PM EDT THU JUN 18 1992 ...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHEAST TENNESSEE AND UPPER NORTHWEST GEORGIA... AT 405 PM EDT RADAR INDICATED STRONG THUNDERSTORMS IN FENTRESS AND SCOTT COUNTIES OF EAST TENNESSEE AND IN NORTH VAN BUREN AND IN NORTH FRANKLIN COUNTIES OF SOUTHEAST TENNESSEE. THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAINFALL...FREQUENT DANGEROUS LIGHTNING AND VERY STRONG WINDS. THE THUNDERSTORMS WERE MOVING EASTERLY AT 25 MILES AN HOUR AND WILL MOVE INTO THE SEQUATCHIE VALLEY OF SOUTHEAST TENNESSEE WITHIN THE NEXT 30 MINUTES. PERSONS LIVING IN SOUTHEqAST TENNESSEE AND UPPER NORTHWEST GEORGIA SHOULD BE AWARE OF THE POTENTIAL OF THESE STORMS AND BE PREPARED TO TAKE ACTION IF NECESSARY.
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 4:40 PM EDT | Severe Thunderstorm Warning | MRX | Anderson | 65 min |
| Jun 18, 5:37 PM EDT | Severe Thunderstorm Warning | MRX | Knox | 68 min |
| Jun 18, 7:06 PM EDT | Severe Thunderstorm Warning | MRX | Knox | 69 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1992Every severe thunderstorm warning in 1992
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.