Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 413, NWS Morristown, TN
NWS Morristown, TN issued this severe thunderstorm warning at Jun 30, 1998, 2:26 PM CDT for Fentress 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
- Jun 30, 1998, 2:26 PM CDT (19:26 UTC)
- Expired
- Jun 30, 1998, 3:00 PM CDT
- In force
- 34 min
- Issued by
- NWS Morristown, TN
- Area
- Whole counties
County Fentress County, TN
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 7.4 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
- 14 J/kg
- Mixed-layer CIN
- -443 J/kg
- Mixed-layer LCL
- 1330 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMRX 301928 RRA SVRMRX TNC049-302000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...CORRECTED NATIONAL WEATHER SERVICE KNOXVILLE/TRI-CITIES TN 326 PM EDT (226 PM CDT) TUE JUN 30 1998 THE NATIONAL WEATHER SERVICE IN KNOXVILLE/TRI-CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... FENTRESS COUNTY IN EASTERN TENNESSEE * UNTIL 300 PM CDT (400 PM EDT) * AT 327 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES NORTH OF WILDER... MOVING SOUTHEAST AT 40 MPH. DAMAGING WINDS AND LARGE HAIL ARE LIKELY. GO INSIDE A STURDY BUILDING AND STAY AWAY FROM WINDOWS! GH/HSA
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, 2:00 PM CDT, 26 minutes earlier.
Area forecast discussion, Jun 30, 2:00 PM CDT, 26 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
The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 11:20 PM CDT | Severe Thunderstorm Warning | MRX | Claiborne | 65 min |
| Jun 30, 5:31 AM CDT | Severe Thunderstorm Warning | MRX | Meigs, Rhea | 49 min |
| Jun 30, 1:37 PM CDT | Severe Thunderstorm Warning | MRX | Claiborne | 33 min |
| Jun 30, 2:30 PM CDT | Severe Thunderstorm Warning | MRX | Greene | 50 min |
| Jun 30, 2:41 PM CDT | Severe Thunderstorm Warning | MRX | Morgan | 34 min |
| Jun 30, 2:58 PM CDT | Severe Thunderstorm Warning | MRX | Cocke | 32 min |
| Jun 30, 3:13 PM CDT | Severe Thunderstorm Warning | MRX | Anderson | 47 min |
| Jun 30, 3:40 PM CDT | Severe Thunderstorm Warning | MRX | Hamilton | 45 min |
| Jun 30, 3:52 PM CDT | Severe Thunderstorm Warning | MRX | Knox | 33 min |
| Jun 30, 3:57 PM CDT | Severe Thunderstorm Warning | MRX | Grainger | 33 min |
| Jun 30, 4:55 PM CDT | Severe Thunderstorm Warning | MRX | Cocke | 35 min |
| Jun 30, 5:02 PM CDT | Severe Thunderstorm Warning | MRX | Carter, Johnson, Sullivan | 33 min |
| Jun 30, 6:47 PM CDT | 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.