Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 365, NWS Memphis, TN

July 30, 1998Dyer County, Tennessee

NWS Memphis, TN issued this severe thunderstorm warning at Jul 30, 1998, 8:24 PM CDT for Dyer 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
Jul 30, 1998, 8:24 PM CDT (01:24 UTC)
Expired
Jul 30, 1998, 9:25 PM CDT
In force
61 min
Issued by
NWS Memphis, TN
Area
Whole counties

County Dyer County, TN

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 1.4 hours before the alert went out and 145 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, Little Rock, AR at 00:00Z on 1998-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 491 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, Little Rock, AR at 00:00Z on 1998-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 51 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
491 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
2473 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
51 m²/s²
0-3 km storm-relative helicity
109 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.5

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 30, 8:06 PM CDTSevere Thunderstorm WarningMEGObion49 min
Jul 30, 8:15 PM CDTSevere Thunderstorm WarningMEGHenry45 min
Jul 30, 8:59 PM CDTSevere Thunderstorm WarningMEGCarroll46 min
Jul 30, 9:35 PM CDTFlash Flood WarningMEGHenry115 min
Jul 30, 11:12 PM CDTFlash Flood WarningMEGCrockett, Madison108 min
Jul 30, 11:33 PM CDTFlash Flood WarningMEGChester117 min
Jul 31, 3:29 AM CDTFlash Flood WarningMEGLauderdale3 hr
Jul 30, 7:54 PM CDTSevere Thunderstorm WarningMEGRandolph61 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.