Alert archive / South Dakota / Wind Advisories in 2014

Wind Advisory 19, NWS Rapid City, SD

April 28, 201410 counties in South Dakota

NWS Rapid City, SD issued this wind advisory at Apr 28, 2014, 10:43 AM MDT for 10 counties in South Dakota. It took effect at Apr 28, 2014, 11:00 AM MDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Apr 28, 2014, 10:43 AM MDT (16:43 UTC)
In effect from: Apr 28, 2014, 11:00 AM MDT
Expired: Apr 28, 2014, 7:15 PM MDT
In force: 8 hr
Issued by: NWS Rapid City, SD

Counties Bennett County, SD, Fall River County, SD, Haakon County, SD, Jackson County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Todd County, SD, Tripp County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 102 km from the middle of the area, began a volume at 16:46 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

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 4.7 hours before the alert went out and 303 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: 530 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 121 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 wind advisory 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 wind advisory went out at Apr 28, 6:31 AM MDT, 4 hours 12 minutes earlier.

Area forecast discussion, Apr 28, 6:31 AM MDT, 4 hours 12 minutes before

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Hazardous weather outlook, Apr 28, 6:23 AM MDT, 4 hours 20 minutes before

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In the hours before

Local storm report, Apr 28, 8:24 AM MDT, 2 hours 19 minutes before

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Local storm report, Apr 28, 8:26 AM MDT, 2 hours 17 minutes before

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Special weather statement, Apr 28, 8:26 AM MDT, 2 hours 17 minutes before

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Local storm report, Apr 28, 8:32 AM MDT, 2 hours 11 minutes before

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Local storm report, Apr 28, 8:34 AM MDT, 2 hours 9 minutes before

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Local storm report, Apr 28, 8:43 AM MDT, 2 hours before

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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
Apr 27, 9:23 PM MDT	High Wind Warning	UNR	Custer, Meade, Pennington	45 hr
Apr 28, 10:33 AM MDT	Winter Weather Advisory	UNR	Bennett, Haakon, Jackson, Lawrence, Meade, Mellette and 5 more	19 hr

Nearby

Wind Advisories in South Dakota, 2014 Every wind advisory in 2014

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.