Alert archive / Arkansas / Tornado Warnings in 2009

Tornado Warning 31, NWS Little Rock, AR

May 14, 2009Conway County, Pope County, Arkansas

NWS Little Rock, AR issued this tornado warning at May 14, 2009, 1:43 AM CDT for Conway County, Pope County, Arkansas. It was in force for 47 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 14, 2009, 1:43 AM CDT (06:43 UTC)
Expired
May 14, 2009, 2:30 AM CDT
In force
47 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon

Counties Conway County, AR, Pope County, AR

The radar

The Little Rock radar (KLZK), 80 km from the middle of the area, began a volume at 06:43 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

Springfield, MO (KSGF), launched 00:00Z, 6.7 hours before the alert went out and 191 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 2009-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1647 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, Springfield, MO at 00:00Z on 2009-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
1647 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
1622 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
289 m²/s²
Significant tornado parameter
0.5
Supercell composite
16.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 11:12 PM CDTSevere Thunderstorm WarningLZKFulton, Sharp18 min
May 14, 12:21 AM CDTSevere Thunderstorm WarningLZKBoone, Marion, Newton, Searcy39 min
May 14, 12:32 AM CDTSevere Thunderstorm WarningLZKJohnson, Logan, Pope, Yell58 min
May 14, 12:42 AM CDTSevere Thunderstorm WarningLZKBaxter, Fulton, Izard, Searcy, Stone48 min
May 14, 1:01 AM CDTSevere Thunderstorm WarningLZKBoone, Marion, Newton, Searcy44 min
May 14, 1:14 AM CDTSevere Thunderstorm WarningLZKLogan, Scott, Yell46 min
May 14, 1:28 AM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Garland, Johnson, Logan, Perry and 3 more62 min
May 14, 1:29 AM CDTSevere Thunderstorm WarningLZKBaxter, Fulton, Independence, Izard, Searcy, Sharp and 1 more46 min
May 14, 1:38 AM CDTSevere Thunderstorm WarningLZKConway, Johnson, Newton, Pope, Searcy, Van Buren52 min
May 14, 2:10 AM CDTSevere Thunderstorm WarningLZKCleburne, Conway, Faulkner, Stone, Van Buren65 min
May 14, 2:34 AM CDTSevere Thunderstorm WarningLZKIndependence, Jackson, Sharp41 min
May 14, 2:38 AM CDTSevere Thunderstorm WarningLZKClark, Garland, Hot Spring, Montgomery, Pike52 min
May 14, 2:47 AM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Lonoke, Pulaski, White43 min
May 14, 2:57 AM CDTSevere Thunderstorm WarningLZKCleburne, Jackson, Prairie, White, Woodruff63 min
May 14, 4:15 AM CDTSevere Thunderstorm WarningLZKArkansas, Monroe, Prairie44 min
May 14, 5:53 AM CDTFlash Flood WarningLZKMontgomery, Pike, Polk3 hr

Nearby

Tornado Warnings in Arkansas, 2009Every tornado warning in 2009Tornadoes in 2009

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.