Alert archive / North Dakota / Blizzard Warnings in 2011

Blizzard Warning 8, NWS Bismarck, ND

March 11, 201124 counties in North Dakota

NWS Bismarck, ND issued this blizzard warning at Mar 11, 2011, 3:35 AM CST for 24 counties in North Dakota. It took effect at Mar 11, 2011, 9:00 AM CST. It was in force for 18 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: Mar 11, 2011, 3:35 AM CST (09:35 UTC)
In effect from: Mar 11, 2011, 9:00 AM CST
Expired: Mar 12, 2011, 3:02 AM CST
In force: 18 hr
Issued by: NWS Bismarck, ND

All 24 counties

Bottineau County, ND, Burke County, ND, Burleigh County, ND, Dickey County, ND, Divide County, ND, Dunn County, ND, Emmons County, ND, Foster County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McKenzie County, ND, Mercer County, ND, Mountrail County, ND, Oliver County, ND, Pierce County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Stutsman County, ND, Wells County, ND, Williams County, ND

The radar

The Bismarck radar (KBIS), 88 km from the middle of the area, began a volume at 09:37 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, 9.6 hours before the alert went out and 347 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: 1570 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: 219 m²/s²
0-3 km storm-relative helicity: 313 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 Bismarck, ND wrote its last area forecast discussion before this blizzard warning went out at Mar 11, 3:34 AM CST, 1 minute earlier.

Area forecast discussion, Mar 11, 3:34 AM CST, 1 minute before

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Hazardous weather outlook, Mar 11, 12:40 AM CST, 2 hours 55 minutes before

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The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 11, 9:43 AM CST	High Wind Warning	BIS	Adams, Billings, Bowman, Burleigh, Dickey, Dunn and 11 more	9 hr
Mar 11, 9:53 AM CST	Winter Weather Advisory	BIS	Adams, Billings, Bowman, Burleigh, Dickey, Divide and 14 more	12 hr

Nearby

Blizzard Warnings in North Dakota, 2011 Every blizzard warning in 2011

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.