Alert archive / Arkansas / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 182, NWS Little Rock, AR

May 4, 20206 counties in Arkansas

NWS Little Rock, AR issued this severe thunderstorm warning at May 4, 2020, 11:01 PM CDT for 6 counties in 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
May 4, 2020, 11:01 PM CDT (04:01 UTC)
Expired
May 4, 2020, 11:45 PM CDT
In force
44 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Conway County, AR, Johnson County, AR, Logan County, AR, Perry County, AR, Pope County, AR, Yell County, AR

The radar

The Little Rock radar (KLZK), 97 km from the middle of the area, began a volume at 04:04 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, 4.0 hours before the alert went out and 192 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 2020-05-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 135 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 2020-05-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 436 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
135 J/kg
Mixed-layer CIN
-464 J/kg
Mixed-layer LCL
494 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
436 m²/s²
0-3 km storm-relative helicity
495 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.7

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
May 4, 8:33 PM CDTSpecial Weather StatementLZKBoone27 min
May 4, 9:50 PM CDTSpecial Weather StatementLZKJohnson55 min
May 4, 10:09 PM CDTSpecial Weather StatementLZKLogan66 min
May 4, 10:36 PM CDTSpecial Weather StatementLZKJohnson, Logan, Pope54 min
May 4, 11:30 PM CDTSevere Thunderstorm WarningLZKGarland, Perry, Saline, Yell45 min
May 4, 11:39 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Perry, Pope, Pulaski, Yell40 min
May 4, 11:51 PM CDTSevere Thunderstorm WarningLZKLogan, Yell54 min
May 5, 12:12 AM CDTSpecial Weather StatementLZKPerry48 min
May 5, 12:24 AM CDTSpecial Weather StatementLZKLonoke51 min
May 5, 12:42 AM CDTSpecial Weather StatementLZKYell48 min
May 5, 1:06 AM CDTSevere Thunderstorm WarningLZKPerry, Saline, Yell39 min
May 5, 1:36 AM CDTSpecial Weather StatementLZKPulaski54 min
May 5, 1:47 AM CDTSevere Thunderstorm WarningLZKPolk43 min
May 5, 2:09 AM CDTSpecial Weather StatementLZKPolk51 min
May 5, 2:45 AM CDTSevere Thunderstorm WarningLZKPike26 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 2020Every severe thunderstorm warning in 2020

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.