Alert archive / Kansas / Flash Flood Watches in 2020

Flash Flood Watch 2, NWS Goodland, KS

July 26, 20207 counties in Kansas

NWS Goodland, KS issued this flash flood watch at Jul 26, 2020, 4:05 AM CDT for 7 counties in Kansas. It took effect at Jul 26, 2020, 3:00 PM CDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Jul 26, 2020, 4:05 AM CDT (09:05 UTC)
In effect from: Jul 26, 2020, 3:00 PM CDT
Expired: Jul 26, 2020, 11:40 PM CDT
In force: 9 hr
Issued by: NWS Goodland, KS
Flood severity: None

Counties Decatur County, KS, Gove County, KS, Graham County, KS, Logan County, KS, Norton County, KS, Sheridan County, KS, Thomas County, KS

The radar

The Goodland radar (KGLD), 105 km from the middle of the area, began a volume at 09:05 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 9.1 hours before the alert went out and 198 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: 763 J/kg
Mixed-layer CIN: -61 J/kg
Mixed-layer LCL: 2341 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

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 Goodland, KS wrote its last area forecast discussion before this flash flood watch went out at Jul 26, 3:30 AM CDT, 35 minutes earlier.

Area forecast discussion, Jul 26, 3:30 AM CDT, 35 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<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.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Jul 25, 11:12 PM CDT, 4 hours 53 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<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.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 25, 7:29 PM CDT	Special Weather Statement	GLD	Wallace	16 min
Jul 25, 7:46 PM CDT	Special Weather Statement	GLD	Sherman	29 min
Jul 25, 7:58 PM CDT	Special Weather Statement	GLD	Sherman	17 min
Jul 25, 8:10 PM CDT	Special Weather Statement	GLD	Wallace	20 min
Jul 25, 8:17 PM CDT	Special Weather Statement	GLD	Sherman	28 min
Jul 25, 8:36 PM CDT	Special Weather Statement	GLD	Wallace	24 min
Jul 26, 3:11 PM CDT	Special Weather Statement	GLD	Logan	19 min
Jul 26, 3:45 PM CDT	Special Weather Statement	GLD	Gove	15 min
Jul 26, 3:57 PM CDT	Special Weather Statement	GLD	Gove	33 min
Jul 26, 5:02 PM CDT	Special Weather Statement	GLD	Greeley	28 min
Jul 26, 5:09 PM CDT	Special Weather Statement	GLD	Sheridan	21 min
Jul 26, 5:40 PM CDT	Flash Flood Warning	GLD	Greeley	3 hr
Jul 26, 5:47 PM CDT	Special Weather Statement	GLD	Sheridan	28 min
Jul 26, 6:02 PM CDT	Severe Thunderstorm Warning	GLD	Wallace	58 min
Jul 26, 6:17 PM CDT	Special Weather Statement	GLD	Thomas	13 min
Jul 26, 6:33 PM CDT	Special Weather Statement	GLD	Thomas	27 min
Jul 26, 6:46 PM CDT	Special Weather Statement	GLD	Graham	29 min
Jul 25, 7:38 PM CDT	Special Weather Statement	GLD	Yuma	37 min
Jul 26, 4:47 PM CDT	Special Weather Statement	GLD	Kit Carson	13 min
Jul 26, 4:59 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne, Kit Carson	61 min
Jul 26, 5:22 PM CDT	Special Weather Statement	GLD	Cheyenne	23 min
Jul 26, 6:56 PM CDT	Special Weather Statement	GLD	Kit Carson	34 min
Jul 25, 8:12 PM CDT	Special Weather Statement	GLD	Dundy	18 min
Jul 26, 1:19 PM CDT	Areal Flood Warning	GLD	Hitchcock	8 hr

Nearby

Flash Flood Watches in Kansas, 2020 Every flash flood watch in 2020

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.