Alert archive / South Dakota / High Wind Warnings in 2007

High Wind Warning 15, NWS Rapid City, SD

November 12, 20076 counties in South Dakota

NWS Rapid City, SD issued this high wind warning at Nov 12, 2007, 10:39 AM MST for 6 counties in South Dakota. It took effect at Nov 13, 2007, 8:00 AM MST. It was in force for 33 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Nov 12, 2007, 10:39 AM MST (17:39 UTC)
In effect from: Nov 13, 2007, 8:00 AM MST
Expired: Nov 14, 2007, 5:00 PM MST
In force: 33 hr
Issued by: NWS Rapid City, SD

Counties Butte County, SD, Harding County, SD, Lawrence County, SD, Meade County, SD, Pennington County, SD, Perkins County, SD

The radar

The Rapid City radar (KUDX), 81 km from the middle of the area, began a volume at 17:38 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

Bismarck Municip, ND (KBIS), launched 12:00Z, 5.7 hours before the alert went out and 288 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: 1967 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 115 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 high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Rapid City, SD wrote its last area forecast discussion before this high wind warning went out at Nov 12, 3:15 AM MST, 7 hours 24 minutes earlier.

Area forecast discussion, Nov 12, 3:15 AM MST, 7 hours 24 minutes before

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Hazardous weather outlook, Nov 12, 6:15 AM MST, 4 hours 24 minutes before

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</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.
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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 Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 12, 4:41 AM MST	High Wind Watch	UNR	Butte, Custer, Harding, Lawrence, Meade, Pennington and 1 more	6 hr
Nov 12, 10:39 AM MST	Wind Advisory	UNR	Bennett, Butte, Custer, Fall River, Haakon, Jackson and 9 more	54 hr

Nearby

High Wind Warnings in South Dakota, 2007 Every high wind warning in 2007

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.