Alert archive / Arkansas / Flash Flood Warnings in 2009

Flash Flood Warning 43, NWS Little Rock, AR

May 16, 20095 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at May 16, 2009, 8:15 AM CDT for 5 counties in 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
May 16, 2009, 8:15 AM CDT (13:15 UTC)
Expired
May 16, 2009, 11:15 AM CDT
In force
3 hr
Issued by
NWS Little Rock, AR
Area
Storm-based polygon
Flood severity
None

Counties Clark County, AR, Garland County, AR, Hot Spring County, AR, Montgomery County, AR, Pike County, AR

The radar

The Little Rock radar (KLZK), 112 km from the middle of the area, began a volume at 13:17 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, 1.3 hours before the alert went out and 289 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 2009-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 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 12:00Z on 2009-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
66 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
462 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
42 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
May 16, 12:26 AM CDTSevere Thunderstorm WarningLZKBaxter, Boone, Marion38 min
May 16, 1:25 AM CDTSevere Thunderstorm WarningLZKSharp35 min
May 16, 2:05 AM CDTTornado WarningLZKCleburne21 min
May 16, 2:06 AM CDTSevere Thunderstorm WarningLZKLogan, Scott39 min
May 16, 2:31 AM CDTSevere Thunderstorm WarningLZKScott, Yell44 min
May 16, 3:03 AM CDTSevere Thunderstorm WarningLZKConway, Faulkner, Perry42 min
May 16, 3:12 AM CDTSevere Thunderstorm WarningLZKLogan, Yell33 min
May 16, 3:23 AM CDTSevere Thunderstorm WarningLZKFaulkner, Lonoke, Pulaski, White52 min
May 16, 3:29 AM CDTSevere Thunderstorm WarningLZKMontgomery, Polk, Scott20 min
May 16, 3:37 AM CDTSevere Thunderstorm WarningLZKFaulkner, Perry, Pulaski, Saline23 min
May 16, 3:43 AM CDTSevere Thunderstorm WarningLZKPerry, Saline, Yell47 min
May 16, 3:55 AM CDTSevere Thunderstorm WarningLZKPulaski, Saline50 min
May 16, 4:04 AM CDTSevere Thunderstorm WarningLZKLonoke, Prairie26 min

Nearby

Flash Flood Warnings in Arkansas, 2009Every flash flood warning in 2009

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.