Alert archive / Arkansas / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 604, NWS Little Rock, AR

October 7, 2008Cleveland County, Jefferson County, Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at Oct 7, 2008, 1:47 AM CDT for Cleveland County, Jefferson County, Arkansas. It was in force for 28 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
Oct 7, 2008, 1:47 AM CDT (06:47 UTC)
Expired
Oct 7, 2008, 2:15 AM CDT
In force
28 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Cleveland County, AR, Jefferson County, AR

The radar

The Little Rock radar (KLZK), 86 km from the middle of the area, began a volume at 06:47 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.

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 6.8 hours before the alert went out and 238 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 2008-10-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2345 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 2008-10-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.193958Sfc1 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
2345 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
755 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.4

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 7:11 PM CDTFlash Flood WarningLZKClark, Garland, Hot Spring2 hr
Oct 6, 7:56 PM CDTSevere Thunderstorm WarningLZKOuachita34 min
Oct 6, 8:29 PM CDTSevere Thunderstorm WarningLZKDallas, Ouachita46 min
Oct 6, 9:02 PM CDTFlash Flood WarningLZKClark, Dallas, Ouachita118 min
Oct 6, 9:13 PM CDTSevere Thunderstorm WarningLZKDallas, Ouachita47 min
Oct 6, 9:48 PM CDTAreal Flood AdvisoryLZKPulaski117 min
Oct 6, 10:49 PM CDTFlash Flood WarningLZKClark, Dallas, Garland, Grant, Hot Spring, Pike and 1 more116 min
Oct 6, 10:55 PM CDTFlash Flood WarningLZKCalhoun, Clark, Cleveland, Dallas, Grant, Jefferson and 2 more2 hr
Oct 6, 11:55 PM CDTSevere Thunderstorm WarningLZKCleveland, Dallas50 min
Oct 7, 12:44 AM CDTFlash Flood WarningLZKClark, Dallas, Garland, Grant, Hot Spring, Pike and 1 more2 hr
Oct 7, 12:47 AM CDTSevere Thunderstorm WarningLZKCalhoun, Cleveland, Dallas, Grant, Jefferson43 min
Oct 7, 12:58 AM CDTFlash Flood WarningLZKCalhoun, Clark, Cleveland, Dallas, Grant, Jefferson and 2 more2 hr
Oct 7, 1:24 AM CDTSevere Thunderstorm WarningLZKGrant, Jefferson36 min
Oct 7, 2:43 AM CDTSevere Thunderstorm WarningLZKArkansas, Monroe, Prairie50 min
Oct 7, 3:04 AM CDTFlash Flood WarningLZKArkansas, Calhoun, Clark, Cleveland, Dallas, Grant and 5 more3 hr

Nearby

Severe Thunderstorm Warnings in Arkansas, 2008Every severe thunderstorm warning in 2008

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; radar from the NEXRAD Level II archive.