Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 421, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 30, 1998, 5:55 PM EDT for Cocke County, Tennessee. It was in force for 35 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 30, 1998, 5:55 PM EDT (21:55 UTC)
- Expired
- Jun 30, 1998, 6:30 PM EDT
- In force
- 35 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Cocke 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 |
|---|---|---|---|
| Jun 30, 3:45 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.9 hours before the alert went out and 290 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
- 29 J/kg
- Mixed-layer CIN
- -297 J/kg
- Mixed-layer LCL
- 1433 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 183 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
900 WUUS01 KMRX 302156 RRA SVRMRX TNC029-302230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 555 PM EDT TUE JUN 30 1998 THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... COCKE COUNTY IN EASTERN TENNESSEE * UNTIL 630 PM EDT * AT 555 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NORTH OF PARROTTSVILLE... MOVING SOUTHEAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS GH/WS
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 30, 3:00 PM EDT, 2 hours 55 minutes earlier.
Area forecast discussion, Jun 30, 3:00 PM EDT, 2 hours 55 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 3 PM EDT TUE JUN 30 1998 NARROW BAND OF TSTMS MOVG THRU PART OF CWA ASSOC W/SFC TROF. SFC FRNT ATTM XTNDS FM CNTRL PA INTO SRN IL. AM XPCTG ANTHR NARROW BAND OF TSTMS THIS EVE AS FRONT DROPS INTO CWA. STILL THINK SOME OF THESE WL BE STRONG TO SVR. CWA UNDER RRQ OF 90-100 KT JET W/GOOD UPPER DIVERG. SFC LIFTING PROVIDED BY FRNT..PLENTY OF MOISTURE TO FUEL CONVECTION. WOULD KEEP POPS IN THE 40-50 PCT RANGE. FRNT KEEPS MOVG S THRU CWA OVRNGT AND SHLD BE TO OUR S BY 12Z WED. SLGTLY COOLER & DRIER AIR XPCTD FOR WED THRU THURS AS SFC HIGH BUILDS SE FROM THE CNTRL & NRN PLAINS. STILL SOME GOOD VORT ENERGY SWINGING THRU UPPER TROF. HWVR..LTL MOISTURE TO WORK WITH AND SUBIDENCE PROVIDED BY SFC HIGH WL KEEP A LID ON ANY SHWR OR TSTM DVLPMT. FWC/FAN TEMPS IN GOOD AGREEMENT & LOOK OK. HSA
In the hours before
Local storm report, Jun 30, 3:41 PM EDT, 2 hours 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN
341 PM EDT TUE JUN 30 1998
TIME(EDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
225 PM IN CLEARFIELD TN WIND DAMAGE
06/30/98 CLAIBORNE SEVERAL TREES REPORTED
DOWNED IN AND AROUND
CLEARFIELD IN NORTHWEST
PORTION OF THE COUNTY.
REPORTED BY 911 DISPATCH.
255 PM 2 S ABINGDON VA WIND DAMAGE
06/30/98 WASHINGTON SEVERAL BUILDINGS DAMAGED
FROM POSSIBLE DOWNBURST NEAR
THE INTERSECTION OF
GREEN SPRING ROAD AND
BROWNING ROAD ABOUT 2 TO 3
MILES SOUTH OF ABINGDON.
SEVERAL AUTOMOBILE WRECKS
WITH UNKNOWN INJURIES DUE TO
DOWNED TREES AND DEBRIS.
REPORTED BY SHERIFFS
DISPATCH.
FERRELLThe office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 12:20 AM EDT | Severe Thunderstorm Warning | MRX | Claiborne | 65 min |
| Jun 30, 6:31 AM EDT | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 49 min |
| Jun 30, 2:37 PM EDT | Severe Thunderstorm Warning | MRX | Claiborne | 33 min |
| Jun 30, 3:26 PM EDT | Severe Thunderstorm Warning | MRX | Fentress | 34 min |
| Jun 30, 3:30 PM EDT | Severe Thunderstorm Warning | MRX | Greene | 50 min |
| Jun 30, 3:41 PM EDT | Severe Thunderstorm Warning | MRX | Morgan | 34 min |
| Jun 30, 3:58 PM EDT | Severe Thunderstorm Warning | MRX | Cocke | 32 min |
| Jun 30, 4:13 PM EDT | Severe Thunderstorm Warning | MRX | Anderson | 47 min |
| Jun 30, 4:40 PM EDT | Severe Thunderstorm Warning | MRX | Hamilton | 45 min |
| Jun 30, 4:52 PM EDT | Severe Thunderstorm Warning | MRX | Knox | 33 min |
| Jun 30, 4:57 PM EDT | Severe Thunderstorm Warning | MRX | Grainger | 33 min |
| Jun 30, 6:02 PM EDT | Severe Thunderstorm Warning | MRX | Carter, Johnson, Sullivan | 33 min |
| Jun 30, 7:47 PM EDT | Severe Thunderstorm Warning | MRX | Cocke | 33 min |
Nearby
Severe Thunderstorm Warnings in Tennessee, 1998Every severe thunderstorm warning 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.