Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 49, NWS Little Rock, AR

March 7, 1998Polk County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Mar 7, 1998, 11:56 AM CST for Polk County, Arkansas. 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
Mar 7, 1998, 11:56 AM CST (17:56 UTC)
Expired
Mar 7, 1998, 12:45 PM CST
In force
49 min
Issued by
NWS Little Rock, AR
Area
Whole counties

County Polk County, AR

What was reported inside it

TimeReportWhereRemark
Mar 7, 12:10 PM CSTHail 1Cove, 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

Shreveport, LA (KSHV), launched 12:00Z, 5.9 hours before the alert went out and 227 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, Shreveport, LA at 12:00Z on 1998-03-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Shreveport, LA at 12:00Z on 1998-03-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 226 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
472 m above ground
0-6 km bulk shear
66 kt
0-1 km storm-relative helicity
226 m²/s²
0-3 km storm-relative helicity
292 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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
Mar 7, 2:03 AM CSTSevere Thunderstorm WarningLZKBradley47 min
Mar 7, 2:15 AM CSTSevere Thunderstorm WarningLZKCalhoun, Ouachita50 min
Mar 7, 2:34 AM CSTSevere Thunderstorm WarningLZKCleveland, Dallas51 min
Mar 7, 8:45 AM CSTSevere Thunderstorm WarningLZKDrew60 min
Mar 7, 10:16 AM CSTSevere Thunderstorm WarningLZKCalhoun49 min
Mar 7, 12:33 PM CSTSevere Thunderstorm WarningLZKScott47 min
Mar 7, 12:55 PM CSTSevere Thunderstorm WarningLZKPike50 min
Mar 7, 12:59 PM CSTSevere Thunderstorm WarningLZKClark61 min
Mar 7, 1:03 PM CSTSevere Thunderstorm WarningLZKLogan47 min
Mar 7, 2:01 PM CSTSevere Thunderstorm WarningLZKPike49 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.