Alert archive / Kentucky / Flash Flood Warnings in 2010

Flash Flood Warning 66, NWS Jackson, KY

August 19, 2010Pulaski County, Kentucky

NWS Jackson, KY issued this flash flood warning at Aug 19, 2010, 4:15 AM EDT for Pulaski County, Kentucky. It was in force for 4 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 19, 2010, 4:15 AM EDT (08:15 UTC)
Expired: Aug 19, 2010, 8:00 AM EDT
In force: 4 hr
Issued by: NWS Jackson, KY
Area: Storm-based polygon
Flood severity: None

County Pulaski County, KY

The radar

The Jackson,KY radar (KJKL), 124 km from the middle of the area, began a volume at 08:17 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

Nashville Metro, TN (KBNA), launched 00:00Z, 8.3 hours before the alert went out and 211 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: 399 J/kg
Mixed-layer CIN: -56 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.2

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 Jackson, KY wrote its last area forecast discussion before this flash flood warning went out at Aug 19, 3:05 AM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Aug 19, 3:05 AM EDT, 1 hour 10 minutes before

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Hazardous weather outlook, Aug 19, 4:10 AM EDT, 5 minutes before

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<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
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        Please try again in a few minutes.
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The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 19, 4:07 AM EDT	Areal Flood Advisory	JKL	Pulaski	3 hr
Aug 19, 4:54 AM EDT	Areal Flood Advisory	JKL	Pulaski, Wayne	3 hr
Aug 19, 10:15 AM EDT	Areal Flood Advisory	JKL	Bell, Knox, Laurel, Whitley	3 hr
Aug 19, 11:04 AM EDT	Areal Flood Advisory	JKL	Bell, Harlan	3 hr

Nearby

Flash Flood Warnings in Kentucky, 2010 Every 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.