Alert archive / Arkansas / Flash Flood Warnings in 2022

Flash Flood Warning 63, NWS Little Rock, AR

July 21, 2022Polk County, Scott County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 21, 2022, 4:12 PM CDT for Polk County, Scott County, Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 21, 2022, 4:12 PM CDT (21:12 UTC)
Expired
Jul 21, 2022, 7:10 PM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Polk County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 71 km from the middle of the area, began a volume at 21:12 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 12:00Z, 9.2 hours before the alert went out and 250 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 12:00Z on 2022-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2022-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -84 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1573 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-84 m²/s²
0-3 km storm-relative helicity
-18 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 9:48 AM CDTExcessive Heat WarningLZKArkansas, Bradley, Calhoun, Clark, Cleveland, Dallas and 6 more10 hr
Jul 21, 1:45 PM CDTSpecial Weather StatementLZKMontgomery30 min
Jul 21, 2:22 PM CDTSpecial Weather StatementLZKPolk23 min
Jul 21, 2:23 PM CDTSpecial Weather StatementLZKScott37 min
Jul 21, 2:25 PM CDTSevere Thunderstorm WarningLZKMontgomery, Polk50 min
Jul 21, 2:28 PM CDTSevere Thunderstorm WarningLZKScott47 min
Jul 21, 2:32 PM CDTSpecial Weather StatementLZKMontgomery28 min
Jul 21, 2:44 PM CDTSevere Thunderstorm WarningLZKScott46 min
Jul 21, 2:50 PM CDTSevere Thunderstorm WarningLZKMontgomery, Scott18 min
Jul 21, 2:57 PM CDTSpecial Weather StatementLZKPike33 min
Jul 21, 3:05 PM CDTSpecial Weather StatementLZKMontgomery25 min
Jul 21, 3:11 PM CDTSevere Thunderstorm WarningLZKPolk, Scott49 min
Jul 21, 3:14 PM CDTSevere Thunderstorm WarningLZKMontgomery, Pike46 min
Jul 21, 3:17 PM CDTSevere Thunderstorm WarningLZKPolk43 min
Jul 21, 3:21 PM CDTSevere Thunderstorm WarningLZKPike39 min
Jul 21, 3:40 PM CDTSevere Thunderstorm WarningLZKClark, Pike50 min
Jul 21, 3:43 PM CDTSevere Thunderstorm WarningLZKLogan, Scott47 min
Jul 21, 3:49 PM CDTSevere Thunderstorm WarningLZKOuachita41 min
Jul 21, 3:51 PM CDTSpecial Weather StatementLZKBradley24 min
Jul 21, 4:02 PM CDTSevere Thunderstorm WarningLZKClark, Montgomery, Pike43 min
Jul 21, 4:05 PM CDTSevere Thunderstorm WarningLZKPike40 min
Jul 21, 4:25 PM CDTSevere Thunderstorm WarningLZKOuachita35 min
Jul 21, 4:30 PM CDTSpecial Weather StatementLZKClark45 min
Jul 21, 4:33 PM CDTHeat AdvisoryLZKArkansas, Bradley, Calhoun, Clark, Cleburne, Cleveland and 35 more27 hr
Jul 21, 4:33 PM CDTSpecial Weather StatementLZKBradley27 min
Jul 21, 4:37 PM CDTSpecial Weather StatementLZKDrew23 min
Jul 21, 4:38 PM CDTSevere Thunderstorm WarningLZKClark, Pike34 min
Jul 21, 4:45 PM CDTSevere Thunderstorm WarningLZKBradley45 min
Jul 21, 4:47 PM CDTSevere Thunderstorm WarningLZKCalhoun, Ouachita43 min
Jul 21, 5:19 PM CDTSevere Thunderstorm WarningLZKCalhoun, Clark, Dallas, Ouachita29 min
Jul 21, 5:22 PM CDTSevere Thunderstorm WarningLZKBradley, Calhoun, Cleveland38 min
Jul 21, 5:28 PM CDTSevere Thunderstorm WarningLZKDrew47 min

Nearby

Flash Flood Warnings in Arkansas, 2022Every flash flood warning in 2022

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.