Alert archive / Nebraska / Heat Advisories in 2017

Heat Advisory 2, NWS Hastings, NE

July 17, 201724 counties in Nebraska; 6 counties in Kansas

NWS Hastings, NE issued this heat advisory at Jul 17, 2017, 3:24 PM CDT for 24 counties in Nebraska; 6 counties in Kansas. It took effect at Jul 18, 2017, 1:00 PM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jul 17, 2017, 3:24 PM CDT (20:24 UTC)
In effect from
Jul 18, 2017, 1:00 PM CDT
Expired
Jul 18, 2017, 8:00 PM CDT
In force
7 hr
Issued by
NWS Hastings, NE
All 30 counties

Jewell County, KS, Mitchell County, KS, Osborne County, KS, Phillips County, KS, Rooks County, KS, Smith County, KS, Adams County, NE, Buffalo County, NE, Clay County, NE, Dawson County, NE, Fillmore County, NE, Franklin County, NE, Furnas County, NE, Gosper County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Howard County, NE, Kearney County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Polk County, NE, Sherman County, NE, Thayer County, NE, Valley County, NE, Webster County, NE, York County, NE

The radar

The Grand Island radar (KUEX), 27 km from the middle of the area, began a volume at 20:26 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, 8.4 hours before the alert went out and 179 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, N. Platte/Lee Bi, NE at 12:00Z on 2017-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 180 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, N. Platte/Lee Bi, NE at 12:00Z on 2017-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939Sfc1 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
180 J/kg
Mixed-layer CIN
-134 J/kg
Mixed-layer LCL
1585 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
-21 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 heat advisory 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 heat advisory went out at Jul 17, 1:06 PM CDT, 2 hours 18 minutes earlier.

Area forecast discussion, Jul 17, 1:06 PM CDT, 2 hours 18 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 17, 7:59 AM CDT, 7 hours 25 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>

In the hours before

Special weather statement, Jul 17, 3:14 PM CDT, 10 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.

IssuedProductOfficeCountiesLasted
Jul 17, 3:14 PM CDTSpecial Weather StatementGIDDawson31 min
Jul 17, 3:24 PM CDTExcessive Heat WatchGIDAdams, Buffalo, Clay, Dawson, Fillmore, Franklin and 18 more24 hr
Jul 17, 3:45 PM CDTSpecial Weather StatementGIDDawson30 min
Jul 17, 3:57 PM CDTSpecial Weather StatementGIDGosper33 min
Jul 17, 4:04 PM CDTSpecial Weather StatementGIDFurnas26 min
Jul 17, 4:06 PM CDTSpecial Weather StatementGIDHarlan24 min
Jul 17, 4:13 PM CDTSpecial Weather StatementGIDDawson32 min
Jul 17, 4:34 PM CDTAreal Flood AdvisoryGIDDawson3 hr
Jul 17, 4:39 PM CDTSpecial Weather StatementGIDKearney36 min
Jul 17, 4:42 PM CDTSpecial Weather StatementGIDDawson33 min
Jul 17, 4:46 PM CDTSpecial Weather StatementGIDValley29 min
Jul 17, 4:52 PM CDTSpecial Weather StatementGIDDawson38 min
Jul 17, 5:25 PM CDTFlash Flood WarningGIDDawson, Gosper3 hr
Jul 17, 5:31 PM CDTSpecial Weather StatementGIDHarlan44 min
Jul 17, 5:37 PM CDTSpecial Weather StatementGIDBuffalo, Kearney23 min
Jul 17, 5:46 PM CDTSpecial Weather StatementGIDHarlan29 min
Jul 17, 5:51 PM CDTSpecial Weather StatementGIDGosper24 min
Jul 17, 5:54 PM CDTSpecial Weather StatementGIDFurnas36 min
Jul 17, 6:05 PM CDTSpecial Weather StatementGIDKearney25 min
Jul 17, 6:41 PM CDTAreal Flood AdvisoryGIDFurnas, Gosper3 hr
Jul 17, 6:28 PM CDTSpecial Weather StatementGIDSmith32 min
Jul 17, 6:44 PM CDTSpecial Weather StatementGIDPhillips31 min

Nearby

Heat Advisories in Nebraska, 2017Heat Advisories in Kansas, 2017Every heat advisory 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.