Alert archive / Nebraska / Flash Flood Watches in 2018

Flash Flood Watch 3, NWS Hastings, NE

June 19, 20188 counties in Nebraska; 6 counties in Kansas

NWS Hastings, NE issued this flash flood watch at Jun 19, 2018, 1:45 PM CDT for 8 counties in Nebraska; 6 counties in Kansas. It took effect at Jun 19, 2018, 3:00 PM CDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Jun 19, 2018, 1:45 PM CDT (18:45 UTC)
In effect from: Jun 19, 2018, 3:00 PM CDT
Expired: Jun 20, 2018, 3:49 AM CDT
In force: 13 hr
Issued by: NWS Hastings, NE
Flood severity: None

Counties Jewell County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Clay County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Harlan County, NE, Nuckolls County, NE, Thayer County, NE, Webster County, NE

The radar

The Grand Island radar (KUEX), 42 km from the middle of the area, began a volume at 18:48 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 12:00Z, 6.8 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1243 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: -177 m²/s²
0-3 km storm-relative helicity: 258 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

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 Hastings, NE wrote its last area forecast discussion before this flash flood watch went out at Jun 19, 12:19 PM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, Jun 19, 12:19 PM CDT, 1 hour 26 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, Jun 19, 8:22 AM CDT, 5 hours 23 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 Hastings, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 7:02 PM CDT	Severe Thunderstorm Warning	GID	Franklin	16 min
Jun 18, 8:37 PM CDT	Special Weather Statement	GID	Adams	23 min
Jun 18, 8:56 PM CDT	Special Weather Statement	GID	Nuckolls	34 min
Jun 18, 9:40 PM CDT	Special Weather Statement	GID	Nuckolls, Thayer	50 min
Jun 18, 9:50 PM CDT	Special Weather Statement	GID	Fillmore	25 min
Jun 19, 3:10 AM CDT	Flash Flood Watch	GID	Franklin, Furnas, Harlan, Webster	11 hr
Jun 19, 5:42 AM CDT	Special Weather Statement	GID	Greeley	48 min
Jun 19, 6:05 AM CDT	Special Weather Statement	GID	Greeley	25 min
Jun 19, 6:34 AM CDT	Special Weather Statement	GID	Nance	26 min
Jun 19, 6:47 AM CDT	Severe Thunderstorm Warning	GID	Nance	28 min
Jun 19, 3:41 PM CDT	Severe Thunderstorm Warning	GID	Fillmore, Thayer	49 min
Jun 19, 4:13 PM CDT	Severe Thunderstorm Warning	GID	Furnas, Gosper	47 min
Jun 19, 4:27 PM CDT	Severe Thunderstorm Warning	GID	Thayer	33 min
Jun 19, 4:32 PM CDT	Areal Flood Advisory	GID	Thayer	3 hr
Jun 19, 4:37 PM CDT	Tornado Warning	GID	Furnas, Gosper	38 min
Jun 19, 4:51 PM CDT	Areal Flood Advisory	GID	Furnas, Gosper, Phelps	3 hr
Jun 19, 5:04 PM CDT	Severe Thunderstorm Warning	GID	Harlan	41 min
Jun 19, 5:11 PM CDT	Tornado Warning	GID	Franklin, Harlan, Kearney, Phelps	34 min
Jun 19, 5:19 PM CDT	Severe Thunderstorm Warning	GID	Thayer	41 min
Jun 19, 5:29 PM CDT	Tornado Warning	GID	Harlan	31 min
Jun 19, 5:44 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Kearney	46 min
Jun 19, 5:54 PM CDT	Tornado Warning	GID	Franklin, Harlan	36 min
Jun 19, 5:57 PM CDT	Severe Thunderstorm Warning	GID	Thayer	48 min
Jun 19, 6:15 PM CDT	Tornado Warning	GID	Webster	30 min
Jun 19, 6:24 PM CDT	Areal Flood Advisory	GID	Harlan	3 hr
Jun 19, 6:27 PM CDT	Tornado Warning	GID	Franklin, Webster	33 min
Jun 19, 6:31 PM CDT	Flash Flood Warning	GID	Thayer	6 hr
Jun 19, 6:36 PM CDT	Tornado Warning	GID	Webster	24 min
Jun 18, 8:26 PM CDT	Special Weather Statement	GID	Smith	34 min
Jun 18, 8:45 PM CDT	Severe Thunderstorm Warning	GID	Jewell, Smith	30 min
Jun 18, 9:13 PM CDT	Special Weather Statement	GID	Jewell	47 min
Jun 18, 9:43 PM CDT	Severe Thunderstorm Warning	GID	Smith	32 min
Jun 18, 9:45 PM CDT	Severe Thunderstorm Warning	GID	Osborne, Rooks, Smith	45 min
Jun 18, 10:22 PM CDT	Special Weather Statement	GID	Jewell	38 min
Jun 18, 10:45 PM CDT	Special Weather Statement	GID	Mitchell	30 min
Jun 18, 10:59 PM CDT	Special Weather Statement	GID	Jewell	46 min
Jun 18, 11:12 PM CDT	Special Weather Statement	GID	Mitchell	48 min
Jun 19, 4:18 PM CDT	Special Weather Statement	GID	Jewell	27 min
Jun 19, 4:44 PM CDT	Special Weather Statement	GID	Jewell	31 min
Jun 19, 4:53 PM CDT	Special Weather Statement	GID	Jewell	22 min
Jun 19, 5:19 PM CDT	Areal Flood Advisory	GID	Mitchell	3 hr
Jun 19, 5:36 PM CDT	Special Weather Statement	GID	Mitchell	24 min

Nearby

Flash Flood Watches in Nebraska, 2018 Flash Flood Watches in Kansas, 2018 Every flash flood watch 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.