Alert archive / South Dakota / Flash Flood Warnings in 2008

Flash Flood Warning 2, NWS Rapid City, SD

June 5, 2008Pennington County, South Dakota

NWS Rapid City, SD issued this flash flood warning at Jun 5, 2008, 2:25 AM MDT for Pennington County, South Dakota. It was in force for 6 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: Jun 5, 2008, 2:25 AM MDT (08:25 UTC)
Expired: Jun 5, 2008, 8:30 AM MDT
In force: 6 hr
Issued by: NWS Rapid City, SD
Area: Storm-based polygon
Flood severity: None

County Pennington County, SD

The radar

The Rapid City radar (KUDX), 13 km from the middle of the area, began a volume at 08:24 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

Aberdeen, SD (KABR), launched 00:00Z, 8.4 hours before the alert went out and 365 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: 1935 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 64 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 flash flood 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 flash flood warning went out at Jun 4, 8:28 PM MDT, 5 hours 57 minutes earlier.

Area forecast discussion, Jun 4, 8:28 PM MDT, 5 hours 57 minutes before

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Hazardous weather outlook, Jun 4, 2:40 PM MDT, 11 hours 45 minutes before

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In the hours before

Local storm report, Jun 4, 8:27 PM MDT, 5 hours 58 minutes before

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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
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Local storm report, Jun 4, 11:14 PM MDT, 3 hours 11 minutes before

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<head>
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  <title>Service Notice</title>
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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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      <p class="small" id="detail">
        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
Jun 4, 6:37 PM MDT	Areal Flood Warning	UNR	Meade, Pennington	15 hr
Jun 4, 6:37 PM MDT	Areal Flood Warning	UNR	Meade, Pennington	68 hr
Jun 4, 10:52 PM MDT	Areal Flood Advisory	UNR	Bennett, Jackson, Mellette, Todd	18 hr
Jun 5, 12:57 AM MDT	Areal Flood Advisory	UNR	Haakon, Pennington	16 hr
Jun 5, 4:22 AM MDT	Areal Flood Advisory	UNR	Butte, Harding, Meade, Perkins, Ziebach	4 hr
Jun 5, 7:23 AM MDT	Areal Flood Warning	UNR	Butte, Lawrence, Meade	4 days
Jun 5, 7:47 AM MDT	Areal Flood Warning	UNR	Harding	6 hr
Jun 5, 7:52 AM MDT	Areal Flood Warning	UNR	Harding	36 hr
Jun 5, 8:18 AM MDT	Areal Flood Advisory	UNR	Meade, Perkins, Ziebach	6 hr
Jun 5, 8:20 AM MDT	Areal Flood Advisory	UNR	Meade, Perkins, Ziebach	8 hr
Jun 5, 10:23 AM MDT	River Flood Warning	UNR	Perkins	3 days
Jun 5, 10:38 AM MDT	Severe Thunderstorm Warning	UNR	Todd, Tripp	34 min
Jun 5, 12:58 PM MDT	River Flood Warning	UNR	Meade	67 hr
Jun 5, 12:59 PM MDT	River Flood Warning	UNR	Haakon, Meade, Pennington, Ziebach	4 days
Jun 5, 1:00 PM MDT	River Flood Warning	UNR	Lyman, Tripp	3 days
Jun 5, 1:08 PM MDT	Areal Flood Advisory	UNR	Mellette, Tripp	24 hr
Jun 5, 1:13 PM MDT	Severe Thunderstorm Warning	UNR	Tripp	32 min
Jun 5, 2:05 PM MDT	Flash Flood Warning	UNR	Tripp	3 hr
Jun 5, 4:11 PM MDT	Areal Flood Warning	UNR	Meade, Perkins, Ziebach	68 hr
Jun 5, 4:25 PM MDT	Areal Flood Warning	UNR	Bennett, Haakon, Jackson, Mellette, Pennington, Todd	48 hr
Jun 5, 8:24 AM MDT	Areal Flood Advisory	UNR	Crook	56 hr

Nearby

Flash Flood Warnings in South Dakota, 2008 Every flash flood warning in 2008

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.