Alert archive / Arkansas / Flash Flood Warnings in 2014

Flash Flood Warning 54, NWS Little Rock, AR

August 18, 20144 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Aug 18, 2014, 9:01 AM CDT for 4 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: Aug 18, 2014, 9:01 AM CDT (14:01 UTC)
Expired: Aug 18, 2014, 12:00 PM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Bradley County, AR, Calhoun County, AR, Cleveland County, AR, Ouachita County, AR

The radar

The Little Rock radar (KLZK), 135 km from the middle of the area, began a volume at 14:04 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 (KBYH), launched 12:00Z, 2.0 hours before the alert went out and 264 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 533 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 848 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -63 m²/s²
0-3 km storm-relative helicity: 6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Little Rock, AR wrote its last area forecast discussion before this flash flood warning went out at Aug 17, 6:35 PM CDT, 14 hours 26 minutes earlier.

Area forecast discussion, Aug 17, 6:35 PM CDT, 14 hours 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 3:04 PM CDT	Severe Thunderstorm Warning	LZK	Cleburne	41 min
Aug 18, 3:13 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Scott	62 min
Aug 18, 3:47 PM CDT	Special Weather Statement	LZK	Cleburne	33 min
Aug 18, 4:10 PM CDT	Severe Thunderstorm Warning	LZK	Montgomery, Polk, Scott, Yell	50 min
Aug 18, 4:14 PM CDT	Special Weather Statement	LZK	White	31 min
Aug 18, 4:24 PM CDT	Severe Thunderstorm Warning	LZK	Independence, Jackson, Prairie, White, Woodruff	51 min
Aug 18, 4:46 PM CDT	Special Weather Statement	LZK	Montgomery	59 min
Aug 18, 5:10 PM CDT	Special Weather Statement	LZK	Garland	45 min
Aug 18, 5:12 PM CDT	Special Weather Statement	LZK	Prairie	28 min
Aug 18, 5:22 PM CDT	Severe Thunderstorm Warning	LZK	Garland, Hot Spring	38 min
Aug 18, 5:24 PM CDT	Special Weather Statement	LZK	Faulkner	46 min
Aug 18, 6:07 PM CDT	Special Weather Statement	LZK	Lonoke	28 min
Aug 18, 6:35 PM CDT	Special Weather Statement	LZK	Lonoke	30 min
Aug 18, 6:42 PM CDT	Special Weather Statement	LZK	Arkansas	28 min
Aug 18, 6:53 PM CDT	Special Weather Statement	LZK	Faulkner	32 min

Nearby

Flash Flood Warnings in Arkansas, 2014 Every flash flood warning in 2014

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.