Alert archive / Arkansas / Flash Flood Warnings in 2010

Flash Flood Warning 41, NWS Little Rock, AR

June 19, 2010Boone County, Arkansas

NWS Little Rock, AR issued this flash flood warning at Jun 19, 2010, 9:49 PM CDT for Boone County, Arkansas. It was in force for 116 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
Jun 19, 2010, 9:49 PM CDT (02:49 UTC)
Expired
Jun 19, 2010, 11:45 PM CDT
In force
116 min
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

County Boone County, AR

The radar

The Springfield radar (KSGF), 107 km from the middle of the area, began a volume at 02:48 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, 2.8 hours before the alert went out and 91 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 2010-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 17 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 2010-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -100 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
17 J/kg
Mixed-layer CIN
-409 J/kg
Mixed-layer LCL
2650 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
-100 m²/s²
0-3 km storm-relative helicity
170 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
Jun 19, 7:27 PM CDTSevere Thunderstorm WarningLZKBoone33 min
Jun 19, 7:49 PM CDTFlash Flood WarningLZKBoone116 min
Jun 20, 4:26 PM CDTSevere Thunderstorm WarningLZKPulaski, Saline34 min
Jun 20, 5:25 PM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Van Buren50 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.