Alert archive / Arkansas / Flash Flood Warnings in 2018

Flash Flood Warning 65, NWS Little Rock, AR

May 26, 2018Calhoun County, Ouachita County, Arkansas

NWS Little Rock, AR issued this flash flood warning at May 26, 2018, 7:49 PM CDT for Calhoun County, Ouachita County, 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 26, 2018, 7:49 PM CDT (00:49 UTC)
Expired: May 26, 2018, 10:45 PM CDT
In force: 3 hr
Issued by: NWS Little Rock, AR
Area: Storm-based polygon
Flood severity: None

Counties Calhoun County, AR, Ouachita County, AR

The radar

The Little Rock radar (KLZK), 146 km from the middle of the area, began a volume at 00:52 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

Jackson, MS (KJAN), launched 00:00Z, 0.8 hours before the alert went out and 281 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: 79 J/kg
Mixed-layer CIN: -118 J/kg
Mixed-layer LCL: 1219 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 11 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 May 26, 6:45 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, May 26, 6:45 PM CDT, 1 hour 4 minutes before

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Hazardous weather outlook, May 26, 3:45 PM CDT, 4 hours 4 minutes before

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In the hours before

Special weather statement, May 26, 6:48 PM CDT, 1 hour 1 minute before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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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
May 26, 7:09 PM CDT	Special Weather Statement	LZK	Calhoun	36 min
May 26, 7:18 PM CDT	Severe Thunderstorm Warning	LZK	Calhoun, Ouachita	27 min
May 26, 7:29 PM CDT	Special Weather Statement	LZK	Cleveland	31 min

Nearby

Flash Flood Warnings in Arkansas, 2018 Every flash flood warning in 2018

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.