Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 421, NWS Little Rock, AR

July 24, 1998Newton County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Jul 24, 1998, 1:25 PM CDT for Newton County, Arkansas. It was in force for 30 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
Jul 24, 1998, 1:25 PM CDT (18:25 UTC)
Expired
Jul 24, 1998, 1:55 PM CDT
In force
30 min
Issued by
NWS Little Rock, AR
Area
Whole counties

County Newton County, AR

The radar

The Western Arkansas radar (KSRX), 125 km from the middle of the area, began a volume at 18:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jul 24, 1:35 PM CDTThunderstorm Wind 50Swain, AR

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

Springfield, MO (KSGF), launched 12:00Z, 6.4 hours before the alert went out and 121 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, Springfield, MO at 12:00Z on 1998-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 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, Springfield, MO at 12:00Z on 1998-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
31 J/kg
Mixed-layer CIN
-153 J/kg
Mixed-layer LCL
861 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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.

The office that day

Everything else NWS Little Rock, AR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 23, 7:11 PM CDTSevere Thunderstorm WarningLZKNewton34 min
Jul 24, 2:20 PM CDTSevere Thunderstorm WarningLZKPerry, Yell50 min
Jul 24, 2:46 PM CDTSevere Thunderstorm WarningLZKGarland34 min
Jul 24, 3:34 PM CDTSevere Thunderstorm WarningLZKGarland46 min
Jul 24, 3:38 PM CDTSevere Thunderstorm WarningLZKPulaski, Saline47 min
Jul 24, 3:49 PM CDTSevere Thunderstorm WarningLZKScott36 min
Jul 24, 4:22 PM CDTSevere Thunderstorm WarningLZKHot Spring48 min
Jul 24, 4:27 PM CDTSevere Thunderstorm WarningLZKCleveland48 min
Jul 24, 4:32 PM CDTSevere Thunderstorm WarningLZKGrant48 min
Jul 24, 5:10 PM CDTSevere Thunderstorm WarningLZKDrew50 min
Jul 24, 5:27 PM CDTSevere Thunderstorm WarningLZKCalhoun48 min
Jul 24, 5:44 PM CDTSevere Thunderstorm WarningLZKClark51 min
Jul 24, 5:46 PM CDTSevere Thunderstorm WarningLZKDallas49 min
Jul 24, 6:14 PM CDTSevere Thunderstorm WarningLZKOuachita51 min
Jul 24, 6:32 PM CDTSevere Thunderstorm WarningLZKCalhoun, Dallas48 min
Jul 24, 6:50 PM CDTSevere Thunderstorm WarningLZKBradley50 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 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; radar from the NEXRAD Level II archive.