Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 365, NWS Morristown, TN

June 22, 1998Sullivan County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jun 22, 1998, 7:01 PM EDT for Sullivan County, Tennessee. It was in force for 49 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 22, 1998, 7:01 PM EDT (23:01 UTC)
Expired
Jun 22, 1998, 7:50 PM EDT
In force
49 min
Issued by
NWS Morristown, TN
Area
Whole counties

County Sullivan County, TN

What was reported inside it

TimeReportWhereRemark
Jun 22, 7:28 PM EDTHail 1Kingsport, 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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.0 hours before the alert went out and 221 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.

Skew-T log-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 1998-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 147 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 1998-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
147 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
1105 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
13 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 22, 6:15 PM EDT, 46 minutes earlier.

Area forecast discussion, Jun 22, 6:15 PM EDT, 46 minutes before
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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 21, 9:56 PM EDTSevere Thunderstorm WarningMRXMonroe64 min
Jun 22, 6:50 PM EDTSevere Thunderstorm WarningMRXAnderson, Knox, Union35 min
Jun 22, 7:35 PM EDTSevere Thunderstorm WarningMRXKnox65 min
Jun 22, 7:47 PM EDTFlash Flood WarningMRXSullivan4 hr
Jun 22, 7:57 PM EDTSevere Thunderstorm WarningMRXGreene48 min
Jun 22, 7:58 PM EDTSevere Thunderstorm WarningMRXClaiborne62 min
Jun 22, 7:49 PM EDTSevere Thunderstorm WarningMRXLee, Wise66 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.