Alert archive / Arkansas / Flash Flood Warnings in 2014

Flash Flood Warning 45, NWS Little Rock, AR

August 8, 20144 counties in Arkansas

NWS Little Rock, AR issued this flash flood warning at Aug 8, 2014, 6:42 PM 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 8, 2014, 6:42 PM CDT (23:42 UTC)
Expired: Aug 8, 2014, 9:30 PM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Montgomery County, AR, Polk County, AR, Scott County, AR, Yell County, AR

The radar

The Western Arkansas radar (KSRX), 79 km from the middle of the area, began a volume at 23:44 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, 11.7 hours before the alert went out and 242 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: 587 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 661 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 9 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 8, 2:43 PM CDT, 3 hours 59 minutes earlier.

Area forecast discussion, Aug 8, 2:43 PM CDT, 3 hours 59 minutes before

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Hazardous weather outlook, Aug 8, 12:35 PM CDT, 6 hours 7 minutes before

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In the hours before

Special weather statement, Aug 8, 1:38 PM CDT, 5 hours 4 minutes before

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Special weather statement, Aug 8, 3:58 PM CDT, 2 hours 44 minutes before

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Special weather statement, Aug 8, 4:20 PM CDT, 2 hours 22 minutes before

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Special weather statement, Aug 8, 4:41 PM CDT, 2 hours 1 minute before

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Local storm report, Aug 8, 6:06 PM CDT, 36 minutes before

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Special weather statement, Aug 8, 6:13 PM CDT, 29 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 8, 9:36 AM CDT	Special Weather Statement	LZK	Calhoun	24 min
Aug 8, 9:58 AM CDT	Special Weather Statement	LZK	Lonoke	32 min
Aug 8, 11:01 AM CDT	Severe Thunderstorm Warning	LZK	Arkansas, Monroe	29 min
Aug 8, 1:38 PM CDT	Special Weather Statement	LZK	Saline	32 min
Aug 8, 2:35 PM CDT	Severe Thunderstorm Warning	LZK	Pope	26 min
Aug 8, 3:58 PM CDT	Special Weather Statement	LZK	Logan	47 min
Aug 8, 4:08 PM CDT	Severe Thunderstorm Warning	LZK	Logan, Yell	37 min
Aug 8, 4:20 PM CDT	Special Weather Statement	LZK	Logan	30 min
Aug 8, 4:31 PM CDT	Flash Flood Warning	LZK	Logan, Scott, Yell	3 hr
Aug 8, 4:41 PM CDT	Special Weather Statement	LZK	Jackson	29 min
Aug 8, 4:53 PM CDT	Flash Flood Warning	LZK	Logan, Scott	3 hr
Aug 8, 5:43 PM CDT	Flash Flood Warning	LZK	Yell	3 hr
Aug 8, 6:13 PM CDT	Special Weather Statement	LZK	Garland, Perry	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.