Alert archive / Kentucky / Flash Flood Watches in 2017

Flash Flood Watch 5, NWS Paducah, KY

June 4, 20174 counties in Kentucky

NWS Paducah, KY issued this flash flood watch at Jun 4, 2017, 9:19 PM CDT for 4 counties in Kentucky. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Jun 4, 2017, 9:19 PM CDT (02:19 UTC)
Expired
Jun 5, 2017, 10:00 AM CDT
In force
13 hr
Issued by
NWS Paducah, KY
Flood severity
None

Counties Calloway County, KY, Christian County, KY, Todd County, KY, Trigg County, KY

The radar

The Ft Campbell radar (KHPX), 38 km from the middle of the area, began a volume at 02:19 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, 2.3 hours before the alert went out and 123 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, Nashville Metro, TN at 00:00Z on 2017-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 508 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, Nashville Metro, TN at 00:00Z on 2017-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
508 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
981 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
33 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Paducah, KY wrote its last area forecast discussion before this flash flood watch went out at Jun 4, 6:20 PM CDT, 2 hours 59 minutes earlier.

Area forecast discussion, Jun 4, 6:20 PM CDT, 2 hours 59 minutes before
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Hazardous weather outlook, Jun 4, 6:33 PM CDT, 2 hours 46 minutes before
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In the hours before

Local storm report, Jun 4, 5:00 PM CDT, 4 hours 19 minutes before
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Local storm report, Jun 4, 6:03 PM CDT, 3 hours 16 minutes before
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<body>
  <main class="wrap">
    <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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 4:12 AM CDTAreal Flood AdvisoryPAHBallard, Carlisle, Graves, Livingston, McCracken, Marshall3 hr
Jun 5, 8:38 AM CDTAreal Flood AdvisoryPAHCalloway2 hr
Jun 5, 10:03 AM CDTRiver Flood WarningPAHChristian, Trigg10 hr
Jun 5, 5:12 PM CDTSpecial Weather StatementPAHPerry48 min

Nearby

Flash Flood Watches in Kentucky, 2017Every flash flood watch in 2017

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.