Alert archive / Arkansas / Flash Flood Warnings in 2010

Flash Flood Warning 85, NWS Little Rock, AR

July 25, 20104 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Jul 25, 2010, 5:01 PM CDT for 4 counties in Arkansas. It was in force for 119 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
Jul 25, 2010, 5:01 PM CDT (22:01 UTC)
Expired
Jul 25, 2010, 7:00 PM CDT
In force
119 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Calhoun County, AR, Cleveland County, AR, Dallas County, AR, Ouachita County, AR

The radar

The Little Rock radar (KLZK), 123 km from the middle of the area, began a volume at 22:04 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

Little Rock, AR (KLZK), launched 12:00Z, 10.0 hours before the alert went out and 268 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, Little Rock, AR at 12:00Z on 2010-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1809 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, Little Rock, AR at 12:00Z on 2010-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -56 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
1809 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1128 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-56 m²/s²
0-3 km storm-relative helicity
-26 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 2:49 PM CDTSpecial Weather StatementLZKGrant46 min
Jul 25, 3:49 PM CDTSpecial Weather StatementLZKCleveland36 min
Jul 25, 3:51 PM CDTSpecial Weather StatementLZKYell34 min
Jul 25, 4:12 PM CDTSevere Thunderstorm WarningLZKCleveland33 min
Jul 25, 4:36 PM CDTFlash Flood WarningLZKCleveland2 hr
Jul 25, 4:44 PM CDTSevere Thunderstorm WarningLZKCalhoun, Cleveland, Dallas, Ouachita46 min
Jul 25, 4:47 PM CDTSevere Thunderstorm WarningLZKCleveland, Lincoln43 min
Jul 25, 5:54 PM CDTSevere Thunderstorm WarningLZKPolk36 min
Jul 25, 6:26 PM CDTSpecial Weather StatementLZKScott34 min
Jul 25, 6:35 PM CDTSpecial Weather StatementLZKPolk30 min
Jul 25, 6:51 PM CDTSpecial Weather StatementLZKLogan29 min

Nearby

Flash Flood Warnings in Arkansas, 2010Every flash flood warning in 2010

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.