Alert archive / North Dakota / Freezing Rain Advisories in 2011

Freezing Rain Advisory 4, NWS Bismarck, ND

December 29, 20114 counties in North Dakota

NWS Bismarck, ND issued this freezing rain advisory at Dec 29, 2011, 9:13 PM CST for 4 counties in North Dakota. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Dec 29, 2011, 9:13 PM CST (03:13 UTC)
Expired: Dec 29, 2011, 11:47 PM CST
In force: 3 hr
Issued by: NWS Bismarck, ND

Counties Dickey County, ND, Foster County, ND, LaMoure County, ND, Stutsman County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 136 km from the middle of the area, began a volume at 03:17 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 3.2 hours before the alert went out and 151 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: 707 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 125 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 freezing rain advisory 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 freezing rain advisory went out at Dec 29, 9:04 PM CST, 9 minutes earlier.

Area forecast discussion, Dec 29, 9:04 PM CST, 9 minutes before

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Hazardous weather outlook, Dec 29, 3:15 PM CST, 5 hours 58 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
Dec 30, 4:10 AM CST	High Wind Watch	BIS	Adams, Billings, Bowman, Burke, Burleigh, Divide and 17 more	12 hr
Dec 30, 3:40 PM CST	High Wind Warning	BIS	Adams, Billings, Bowman, Burke, Burleigh, Divide and 13 more	45 hr
Dec 30, 3:40 PM CST	Wind Advisory	BIS	Bottineau, Dickey, Foster, Kidder, LaMoure, Logan and 7 more	50 hr

Nearby

Freezing Rain Advisories in North Dakota, 2011 Every freezing rain advisory 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.