Alert archive / Arkansas / Flash Flood Warnings in 2022

Flash Flood Warning 64, NWS Little Rock, AR

July 29, 2022Lawrence County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 29, 2022, 11:51 PM CDT for Lawrence 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 29, 2022, 11:51 PM CDT (04:51 UTC)
Expired
Jul 30, 2022, 2:50 AM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

County Lawrence County, AR

The radar

The Memphis radar (KNQA), 136 km from the middle of the area, began a volume at 04:51 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, 4.9 hours before the alert went out and 259 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 2022-07-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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 2022-07-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
23 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1488 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
139 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 29, 11:12 PM CDTSpecial Weather StatementLZKMarion33 min
Jul 30, 8:16 AM CDTSpecial Weather StatementLZKVan Buren29 min
Jul 30, 10:32 AM CDTFlash Flood WarningLZKNewton2 hr
Jul 30, 12:54 PM CDTSpecial Weather StatementLZKScott36 min
Jul 30, 1:19 PM CDTSpecial Weather StatementLZKScott26 min
Jul 30, 2:30 PM CDTSpecial Weather StatementLZKBradley, Calhoun30 min
Jul 30, 3:10 PM CDTSpecial Weather StatementLZKPolk35 min
Jul 30, 3:51 PM CDTSevere Thunderstorm WarningLZKClark, Pike24 min
Jul 30, 3:56 PM CDTSpecial Weather StatementLZKDrew, Lincoln34 min
Jul 30, 4:42 PM CDTFlash Flood WarningLZKCleveland, Dallas2 hr

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.