Alert archive / South Dakota / Winter Storm Watches in 2014

Winter Storm Watch 1, NWS Sioux Falls, SD

March 17, 20145 counties in South Dakota; 5 counties in Minnesota

NWS Sioux Falls, SD issued this winter storm watch at Mar 17, 2014, 3:51 AM CDT for 5 counties in South Dakota; 5 counties in Minnesota. It took effect at Mar 18, 2014, 7:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued: Mar 17, 2014, 3:51 AM CDT (08:51 UTC)
In effect from: Mar 18, 2014, 7:00 AM CDT
Expired: Mar 17, 2014, 3:57 PM CDT
In force
Issued by: NWS Sioux Falls, SD

Counties Cottonwood County, MN, Lincoln County, MN, Lyon County, MN, Murray County, MN, Pipestone County, MN, Brookings County, SD, Kingsbury County, SD, Lake County, SD, Miner County, SD, Moody County, SD

The radar

The Sioux Falls radar (KFSD), 67 km from the middle of the area, began a volume at 08:49 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

Minneapolis, MN (KMPX), launched 00:00Z, 8.9 hours before the alert went out and 242 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: 1285 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 187 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 winter storm watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Sioux Falls, SD wrote its last area forecast discussion before this winter storm watch went out at Mar 16, 10:08 PM CDT, 5 hours 43 minutes earlier.

Area forecast discussion, Mar 16, 10:08 PM CDT, 5 hours 43 minutes before

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Hazardous weather outlook, Mar 16, 5:19 PM CDT, 10 hours 32 minutes before

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    <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.
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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 17, 3:57 PM CDT	Winter Storm Warning	FSD	Brookings, Kingsbury, Lake, Miner	13 hr
Mar 17, 3:57 PM CDT	Winter Weather Advisory	FSD	Aurora, Beadle, Bon Homme, Brule, Charles Mix, Davison and 9 more	30 hr

Nearby

Winter Storm Watches in South Dakota, 2014 Winter Storm Watches in Minnesota, 2014 Every winter storm watch 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.