Alert archive / North Dakota / Winter Weather Advisories in 2021

Winter Weather Advisory 14, NWS Bismarck, ND

December 24, 202115 counties in North Dakota

NWS Bismarck, ND issued this winter weather advisory at Dec 24, 2021, 1:00 PM MST for 15 counties in North Dakota. It took effect at Dec 24, 2021, 8:00 PM MST. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Dec 24, 2021, 1:00 PM MST (20:00 UTC)
In effect from
Dec 24, 2021, 8:00 PM MST
Expired
Dec 25, 2021, 5:00 PM MST
In force
21 hr
Issued by
NWS Bismarck, ND

Counties Adams County, ND, Bowman County, ND, Burleigh County, ND, Dickey County, ND, Emmons County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Oliver County, ND, Slope County, ND, Stark County, ND, Stutsman County, ND

The radar

The Bismarck radar (KBIS), 30 km from the middle of the area, began a volume at 20:00 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 12:00Z, 8.0 hours before the alert went out and 31 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-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 2021-12-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2021-12-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -141 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
1509 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
-141 m²/s²
0-3 km storm-relative helicity
-81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 24, 12:10 AM MSTWinter Weather AdvisoryBISBottineau, Foster, McHenry, Pierce, Renville, Rolette and 2 more5 hr
Dec 24, 1:00 PM MSTWind Chill AdvisoryBISBottineau, Burke, Divide, McHenry, Mountrail, Pierce and 3 more19 hr

Nearby

Winter Weather Advisories in North Dakota, 2021Every winter weather advisory in 2021

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.