Alert archive / Arkansas / Tornado Warnings in 2010

Tornado Warning 83, NWS Little Rock, AR

September 8, 2010Clark County, Arkansas

NWS Little Rock, AR issued this tornado warning at Sep 8, 2010, 9:31 PM CDT for Clark County, Arkansas. It was in force for 44 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
Sep 8, 2010, 9:31 PM CDT (02:31 UTC)
Expired
Sep 8, 2010, 10:15 PM CDT
In force
44 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

County Clark County, AR

The radar

The Little Rock radar (KLZK), 121 km from the middle of the area, began a volume at 02:34 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, 2.5 hours before the alert went out and 183 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 2010-09-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 670 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 2010-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.1939Sfc1 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
670 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
1063 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
132 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.7

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 9:07 PM CDTSpecial Weather StatementLZKClark58 min
Sep 8, 9:25 PM CDTSevere Thunderstorm WarningLZKClark50 min
Sep 8, 10:44 PM CDTSpecial Weather StatementLZKClark61 min
Sep 8, 11:24 PM CDTSpecial Weather StatementLZKHot Spring31 min
Sep 9, 5:39 AM CDTFlash Flood WarningLZKBoone, Johnson, Newton, Pope5 hr
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZKFranklin, Johnson, Logan3 days
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZKPope, Yell3 days
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZKConway, Perry3 days
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZKFaulkner, Perry3 days
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZKPulaski3 days
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZKJefferson, Lincoln3 days
Sep 9, 10:28 AM CDTRiver Flood AdvisoryLZKArkansas, Desha, Lincoln3 days
Sep 9, 11:09 AM CDTFlash Flood WarningLZKBoone, Johnson, Newton, Pope111 min
Sep 9, 3:07 PM CDTFlash Flood WarningLZKJohnson, Logan, Newton, Pope113 min
Sep 9, 3:21 PM CDTSpecial Weather StatementLZKIzard, Stone59 min
Sep 9, 3:56 PM CDTFlash Flood WarningLZKCleburne, Independence, Izard, Sharp, Stone3 hr
Sep 9, 4:13 PM CDTSevere Thunderstorm WarningLZKIndependence, Sharp32 min
Sep 9, 5:06 PM CDTSpecial Weather StatementLZKLonoke, Pulaski59 min
Sep 9, 5:50 PM CDTFlash Flood WarningLZKJohnson4 hr

Nearby

Tornado Warnings in Arkansas, 2010Every tornado warning in 2010Tornadoes in 2010

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.