Alert archive / Arkansas / Flash Flood Warnings in 2022

Flash Flood Warning 2, NWS Little Rock, AR

December 31, 2021Logan County, Polk County, Scott County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Dec 31, 2021, 11:30 PM CST for Logan County, Polk County, Scott County, Arkansas. It was in force for 6 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
Dec 31, 2021, 11:30 PM CST (05:30 UTC)
Expired
Jan 1, 2022, 5:25 AM CST
In force
6 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Logan County, AR, Polk County, AR, Scott County, AR

The radar

The Western Arkansas radar (KSRX), 59 km from the middle of the area, began a volume at 05:29 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, 5.5 hours before the alert went out and 265 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 2022-01-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 683 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 2022-01-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 178 square meters per square second.1939587897Sfc1 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
683 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
934 m above ground
0-6 km bulk shear
63 kt
0-1 km storm-relative helicity
178 m²/s²
0-3 km storm-relative helicity
273 m²/s²
Significant tornado parameter
0.8
Supercell composite
2.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 31, 10:59 PM CSTFlash Flood WarningLZKLogan, Polk, Scott, Yell7 hr
Dec 31, 11:28 PM CSTSpecial Weather StatementLZKScott47 min
Dec 31, 11:57 PM CSTSpecial Weather StatementLZKYell48 min
Jan 1, 12:01 AM CSTSpecial Weather StatementLZKPope44 min
Jan 1, 12:22 AM CSTSpecial Weather StatementLZKCleburne53 min
Jan 1, 12:27 AM CSTSpecial Weather StatementLZKYell48 min
Jan 1, 12:36 AM CSTFlash Flood WarningLZKCleburne, Conway, Johnson, Pope, Van Buren5 hr
Jan 1, 12:43 AM CSTSevere Thunderstorm WarningLZKConway, Perry, Pope, Yell47 min
Jan 1, 12:54 AM CSTFlash Flood WarningLZKIndependence, Izard, Lawrence, Randolph, Sharp, Stone and 1 more5 hr
Jan 1, 1:22 AM CSTSevere Thunderstorm WarningLZKConway, Faulkner, Perry, Pope, Van Buren, Yell38 min
Jan 1, 1:56 AM CSTSpecial Weather StatementLZKCleburne34 min
Jan 1, 2:43 AM CSTSpecial Weather StatementLZKLawrence, Randolph32 min
Jan 1, 9:00 AM CSTSpecial Weather StatementLZKScott30 min
Jan 1, 9:27 AM CSTRiver Flood WarningLZKRandolph6 days
Jan 1, 9:28 AM CSTRiver Flood WarningLZKIndependence, Jackson, Lawrence17 days
Jan 1, 9:36 AM CSTRiver Flood WarningLZKJackson, Woodruff26 days
Jan 1, 9:41 AM CSTRiver Flood WarningLZKWhite, Woodruff24 days
Jan 1, 10:44 AM CSTSpecial Weather StatementLZKConway, Faulkner, Garland, Montgomery, Perry, Yell91 min
Jan 1, 11:59 AM CSTSpecial Weather StatementLZKClark, Garland, Hot Spring, Lonoke, Pike, Pulaski and 1 more91 min
Jan 1, 1:23 PM CSTRiver Flood WarningLZKYell21 hr
Jan 1, 1:24 PM CSTRiver Flood AdvisoryLZKYell6 hr
Jan 1, 2:18 PM CSTSpecial Weather StatementLZKArkansas, Monroe27 min
Jan 1, 3:41 PM CSTSpecial Weather StatementLZKDallas34 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.