Alert archive / South Dakota / Flash Flood Warnings in 2010

Flash Flood Warning 15, NWS Aberdeen, SD

July 29, 2010Buffalo County, Hand County, Hyde County, South Dakota

NWS Aberdeen, SD issued this flash flood warning at Jul 29, 2010, 9:08 PM CDT for Buffalo County, Hand County, Hyde 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: Jul 29, 2010, 9:08 PM CDT (02:08 UTC)
Expired: Jul 30, 2010, 3:00 AM CDT
In force: 6 hr
Issued by: NWS Aberdeen, SD
Area: Storm-based polygon
Flood severity: None

Counties Buffalo County, SD, Hand County, SD, Hyde County, SD

The radar

The Aberdeen radar (KABR), 135 km from the middle of the area, began a volume at 02:11 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, 2.1 hours before the alert went out and 87 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: 783 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 49 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 Aberdeen, SD wrote its last area forecast discussion before this flash flood warning went out at Jul 29, 3:16 PM CDT, 5 hours 52 minutes earlier.

Area forecast discussion, Jul 29, 3:16 PM CDT, 5 hours 52 minutes before

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Hazardous weather outlook, Jul 29, 5:17 AM CDT, 15 hours 51 minutes before

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    <section class="card" role="status" aria-live="polite">
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      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

Everything else NWS Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 29, 8:07 PM CDT	Severe Thunderstorm Warning	ABR	Jones, Lyman	38 min
Jul 30, 8:57 AM CDT	Areal Flood Warning	ABR	Hand	20 hr

Nearby

Flash Flood Warnings in South Dakota, 2010 Every flash flood warning in 2010

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.