Alert archive / Arkansas / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 331, NWS Little Rock, AR

May 5, 1999Lonoke County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 5, 1999, 1:24 PM CDT for Lonoke County, Arkansas. It was in force for 46 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
May 5, 1999, 1:24 PM CDT (18:24 UTC)
Expired
May 5, 1999, 2:10 PM CDT
In force
46 min
Issued by
NWS Little Rock, AR
Area
Whole counties

County Lonoke County, AR

The nearest sounding before it

Little Rock, AR (KLZK), launched 12:00Z, 6.4 hours before the alert went out and 177 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 12:00Z on 1999-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 72 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 12:00Z on 1999-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
72 J/kg
Mixed-layer CIN
-256 J/kg
Mixed-layer LCL
1942 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.0

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
May 4, 7:00 PM CDTSevere Thunderstorm WarningLZKFaulkner, Pulaski35 min
May 4, 7:09 PM CDTTornado WarningLZKOuachita51 min
May 4, 7:12 PM CDTSevere Thunderstorm WarningLZKPope33 min
May 4, 7:41 PM CDTSevere Thunderstorm WarningLZKVan Buren34 min
May 4, 7:45 PM CDTTornado WarningLZKCalhoun50 min
May 4, 8:17 PM CDTSevere Thunderstorm WarningLZKWhite48 min
May 4, 8:53 PM CDTSevere Thunderstorm WarningLZKLincoln32 min
May 4, 9:11 PM CDTSevere Thunderstorm WarningLZKFaulkner34 min
May 4, 11:25 PM CDTSevere Thunderstorm WarningLZKMonroe35 min
May 5, 7:24 AM CDTSevere Thunderstorm WarningLZKBradley21 min
May 5, 7:32 AM CDTSevere Thunderstorm WarningLZKDrew48 min
May 5, 1:06 PM CDTSevere Thunderstorm WarningLZKPulaski34 min
May 5, 1:13 PM CDTSevere Thunderstorm WarningLZKBradley, Calhoun47 min
May 5, 1:18 PM CDTSevere Thunderstorm WarningLZKGrant32 min
May 5, 1:35 PM CDTSevere Thunderstorm WarningLZKPrairie35 min
May 5, 1:48 PM CDTSevere Thunderstorm WarningLZKWoodruff47 min
May 5, 1:52 PM CDTSevere Thunderstorm WarningLZKCleveland, Lincoln48 min
May 5, 2:01 PM CDTSevere Thunderstorm WarningLZKArkansas34 min
May 5, 2:07 PM CDTSevere Thunderstorm WarningLZKJackson33 min
May 5, 2:33 PM CDTSevere Thunderstorm WarningLZKMonroe32 min
May 5, 2:39 PM CDTSevere Thunderstorm WarningLZKArkansas36 min
May 5, 2:51 PM CDTSevere Thunderstorm WarningLZKCalhoun, Ouachita49 min
May 5, 3:40 PM CDTSevere Thunderstorm WarningLZKCalhoun35 min
May 5, 4:00 PM CDTSevere Thunderstorm WarningLZKLincoln35 min
May 5, 4:05 PM CDTSevere Thunderstorm WarningLZKBradley50 min
May 5, 4:14 PM CDTSevere Thunderstorm WarningLZKCleveland51 min
May 5, 4:15 PM CDTFlash Flood WarningLZKCalhoun, Cleveland3 hr
May 5, 4:15 PM CDTFlash Flood WarningLZKOuachita3 hr
May 5, 4:24 PM CDTSevere Thunderstorm WarningLZKArkansas51 min
May 5, 4:50 PM CDTFlash Flood WarningLZKArkansas, Jefferson, Lincoln2 hr
May 5, 5:14 PM CDTFlash Flood WarningLZKMonroe2 hr
May 5, 5:14 PM CDTSevere Thunderstorm WarningLZKGrant, Saline36 min
May 5, 5:24 PM CDTSevere Thunderstorm WarningLZKPulaski51 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1999Every severe thunderstorm warning in 1999

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.