Alert archive / South Dakota / Blizzard Warnings in 2008

Blizzard Warning 4, NWS Rapid City, SD

November 5, 200815 counties in South Dakota

NWS Rapid City, SD issued this blizzard warning at Nov 5, 2008, 2:25 AM MST for 15 counties in South Dakota. It took effect at Nov 5, 2008, 2:51 PM MST. It was in force for 44 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 5, 2008, 2:25 AM MST (09:25 UTC)
In effect from: Nov 5, 2008, 2:51 PM MST
Expired: Nov 7, 2008, 11:00 AM MST
In force: 44 hr
Issued by: NWS Rapid City, SD

Counties Bennett County, SD, Butte County, SD, Custer County, SD, Haakon County, SD, Harding County, SD, Jackson County, SD, Lawrence County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Todd County, SD, Tripp County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 52 km from the middle of the area, began a volume at 09:30 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

Rapid City, SD (KUNR), launched 00:00Z, 9.4 hours before the alert went out and 57 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: 2712 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 43 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 blizzard 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 blizzard warning went out at Nov 4, 9:00 PM MST, 5 hours 25 minutes earlier.

Area forecast discussion, Nov 4, 9:00 PM MST, 5 hours 25 minutes before

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Hazardous weather outlook, Nov 4, 3:05 PM MST, 11 hours 20 minutes before

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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 Rapid City, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 5, 2:25 AM MST	Winter Storm Warning	UNR	Bennett, Custer, Jackson, Lawrence, Meade, Oglala Lakota and 1 more	39 hr
Nov 5, 10:09 AM MST	Winter Weather Advisory	UNR	Custer, Fall River, Mellette, Todd, Tripp	31 hr

Nearby

Blizzard Warnings in South Dakota, 2008 Blizzard Warnings in Wyoming, 2008 Every blizzard 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.