Alert archive / Nebraska / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 129, NWS Hastings, NE

July 22, 2009Dawson County, Gosper County, Nebraska

NWS Hastings, NE issued this severe thunderstorm warning at Jul 22, 2009, 3:51 PM CDT for Dawson County, Gosper County, Nebraska. It was in force for 39 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 22, 2009, 3:51 PM CDT (20:51 UTC)
Expired: Jul 22, 2009, 4:30 PM CDT
In force: 39 min
Issued by: NWS Hastings, NE
Area: Storm-based polygon

Counties Dawson County, NE, Gosper County, NE

The radar

The Grand Island radar (KUEX), 124 km from the middle of the area, began a volume at 20:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 22, 2:55 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 8.9 hours before the alert went out and 81 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: 78 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 1482 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 22, 3:51 PM CDT, 0 minutes earlier.

Area forecast discussion, Jul 22, 3:51 PM CDT, 0 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 22, 2:25 PM CDT, 1 hour 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HASTINGS NE
225 PM CDT WED JUL 22 2009

KSZ005>007-017>019-NEZ039>041-046>049-060>064-072>077-082>087-
231200-
PHILLIPS-SMITH-JEWELL-ROOKS-OSBORNE-MITCHELL-VALLEY-GREELEY-NANCE-
SHERMAN-HOWARD-MERRICK-POLK-DAWSON-BUFFALO-HALL-HAMILTON-YORK-
GOSPER-PHELPS-KEARNEY-ADAMS-CLAY-FILLMORE-FURNAS-HARLAN-FRANKLIN-
WEBSTER-NUCKOLLS-THAYER-
225 PM CDT WED JUL 22 2009

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL NEBRASKA AND
PORTIONS OF NORTH CENTRAL KANSAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS HAD DEVELOPED AND MOVED INTO THE AREA FROM THE WEST
AND ARE EXPECTED TO CONTINUE THROUGH THE REMAINDER OF THE
AFTERNOON AND INTO THE EVENING. SOME OF THESE STORMS MAY BECOME
SEVERE WITH THE BEST CHANCE MAINLY WEST OF A PLEASANTON...TO
WILCOX...TO ALMA NEBRASKA...TO PRAIRIE VIEW KANSAS LINE. HOWEVER
OF FEW OF THE STORMS EAST OF THIS LINE MAY ALSO BECOME SEVERE. THE
PRIMARY HAZARD WITH THESE THUNDERSTORMS WOULD BE HAIL TO THE SIZE
OF QUARTERS AND DAMAGING WINDS TO 60 MPH.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

ADDITIONAL CHANCES FOR THUNDERSTORMS COME TO THE OUTLOOK AREA
THURSDAY NIGHT THROUGH FRIDAY NIGHT...AND AGAIN MONDAY NIGHT INTO
TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED THROUGH TONIGHT WEST OF A LINE
FROM PLEASANTON...TO WILCOX...TO ALMA NEBRASKA...TO PRAIRIE VIEW
KANSAS.

&&

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING WEB PAGE:
   HTTP://WWW.WEATHER.GOV/HASTINGS  (ALL LOWERCASE)

EWALD

In the hours before

Local storm report, Jul 22, 3:26 PM CDT, 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>

Local storm report, Jul 22, 3:28 PM CDT, 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>

Local storm report, Jul 22, 3:34 PM CDT, 17 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>

Local storm report, Jul 22, 3:41 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>

Local storm report, Jul 22, 3:49 PM CDT, 2 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>

Local storm report, Jul 22, 3:50 PM CDT, 1 minute 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
Jul 22, 2:18 PM CDT	Special Weather Statement	GID	Phelps	27 min
Jul 22, 2:21 PM CDT	Severe Thunderstorm Warning	GID	Buffalo, Kearney, Phelps	39 min
Jul 22, 2:59 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Kearney, Phelps	46 min
Jul 22, 3:10 PM CDT	Severe Thunderstorm Warning	GID	Dawson	50 min
Jul 22, 3:55 PM CDT	Severe Thunderstorm Warning	GID	Greeley	50 min
Jul 22, 4:23 PM CDT	Severe Thunderstorm Warning	GID	Dawson, Gosper	37 min
Jul 22, 4:33 PM CDT	Severe Thunderstorm Warning	GID	Franklin, Harlan	42 min
Jul 22, 4:43 PM CDT	Severe Thunderstorm Warning	GID	Greeley	47 min
Jul 22, 4:52 PM CDT	Severe Thunderstorm Warning	GID	Gosper	38 min
Jul 22, 5:06 PM CDT	Special Weather Statement	GID	Polk	24 min
Jul 22, 5:11 PM CDT	Special Weather Statement	GID	Valley	34 min
Jul 22, 5:14 PM CDT	Severe Thunderstorm Warning	GID	Valley	46 min
Jul 22, 5:15 PM CDT	Special Weather Statement	GID	Franklin	30 min
Jul 22, 5:22 PM CDT	Severe Thunderstorm Warning	GID	Polk, York	28 min
Jul 22, 5:24 PM CDT	Severe Thunderstorm Warning	GID	Furnas, Gosper	51 min
Jul 22, 5:28 PM CDT	Severe Thunderstorm Warning	GID	Greeley	47 min
Jul 22, 5:50 PM CDT	Severe Thunderstorm Warning	GID	Furnas	25 min
Jul 22, 5:55 PM CDT	Special Weather Statement	GID	Adams	35 min
Jul 22, 5:57 PM CDT	Areal Flood Advisory	GID	Furnas, Gosper	3 hr
Jul 22, 5:57 PM CDT	Severe Thunderstorm Warning	GID	Sherman, Valley	48 min
Jul 22, 6:06 PM CDT	Severe Thunderstorm Warning	GID	Adams	39 min
Jul 22, 6:09 PM CDT	Severe Thunderstorm Warning	GID	Furnas	51 min
Jul 22, 6:17 PM CDT	Areal Flood Advisory	GID	Greeley, Howard, Sherman, Valley	3 hr
Jul 22, 6:19 PM CDT	Special Weather Statement	GID	Harlan	26 min
Jul 22, 6:36 PM CDT	Severe Thunderstorm Warning	GID	Adams, Clay	23 min
Jul 22, 6:46 PM CDT	Special Weather Statement	GID	Phillips	29 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2009 Every severe thunderstorm warning in 2009

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.