Alert archive / Arkansas / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 101, NWS Tulsa, OK

May 4, 1991Benton County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 4, 1991, 8:47 PM CDT for Benton County, Arkansas. It was in force for 58 min.

The area

The counties it named.

The facts

Issued
May 4, 1991, 8:47 PM CDT (01:47 UTC)
Expired
May 4, 1991, 9:45 PM CDT
In force
58 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Benton County, AR

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 1.8 hours before the alert went out and 74 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 00:00Z on 1991-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2434 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1991-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 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
2434 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1078 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
196 m²/s²
Significant tornado parameter
1.5
Supercell composite
8.6

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 Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 4, 7:01 PM CDTSevere Thunderstorm WarningTSADelaware59 min
May 4, 7:06 PM CDTSevere Thunderstorm WarningTSAOsage, Washington54 min
May 4, 7:59 PM CDTSevere Thunderstorm WarningTSADelaware31 min
May 4, 8:26 PM CDTSevere Thunderstorm WarningTSAOsage49 min
May 4, 9:34 PM CDTSevere Thunderstorm WarningTSAMayes, Rogers41 min
May 4, 7:50 PM CDTSevere Thunderstorm WarningTSABenton55 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1991Every severe thunderstorm warning in 1991

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.