Alert archive / Arkansas / Tornado Warnings in 1999

Tornado Warning 92, NWS Little Rock, AR

May 4, 1999Ouachita County, Arkansas

NWS Little Rock, AR issued this tornado warning at May 4, 1999, 7:09 PM CDT for Ouachita County, Arkansas. It was in force for 51 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
May 4, 1999, 7:09 PM CDT (00:09 UTC)
Expired
May 4, 1999, 8:00 PM CDT
In force
51 min
Issued by
NWS Little Rock, AR
Area
Whole counties

County Ouachita County, AR

The radar

The Little Rock radar (KLZK), 150 km from the middle of the area, began a volume at 00:09 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
May 4, 7:40 PM CDTThunderstorm Wind 50Elliott, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
May 4, 3:00 PM CDTTornado WatchSPC6 hr
May 4, 5:45 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 0.2 hours before the alert went out and 148 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 00:00Z on 1999-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3185 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, Shreveport, LA at 00:00Z on 1999-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 267 square meters per square second.19395878Sfc1 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
3185 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
558 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
267 m²/s²
0-3 km storm-relative helicity
270 m²/s²
Significant tornado parameter
5.4
Supercell composite
17.9

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, 7:12 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, 1:24 PM CDTSevere Thunderstorm WarningLZKLonoke46 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

Tornado Warnings in Arkansas, 1999Every tornado warning in 1999Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.