Alert archive / North Dakota / Snow Squall Warnings in 2023

Snow Squall Warning 2, NWS Bismarck, ND

October 30, 2023McHenry County, Pierce County, North Dakota

NWS Bismarck, ND issued this snow squall warning at Oct 30, 2023, 3:28 PM CDT for McHenry County, Pierce County, North Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 30, 2023, 3:28 PM CDT (20:28 UTC)
Expired: Oct 30, 2023, 4:00 PM CDT
In force: 32 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties McHenry County, ND, Pierce County, ND

The radar

The Minot AFB radar (KMBX), 45 km from the middle of the area, began a volume at 20:31 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, 8.5 hours before the alert went out and 166 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: 899 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 184 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 snow squall 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 snow squall warning went out at Oct 30, 2:58 PM CDT, 30 minutes earlier.

Area forecast discussion, Oct 30, 2:58 PM CDT, 30 minutes before

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Hazardous weather outlook, Oct 30, 11:35 AM CDT, 3 hours 53 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
Oct 30, 11:25 AM CDT	Wind Advisory	BIS	Adams, Bowman, Burleigh, Dickey, Dunn, Emmons and 14 more	11 hr
Oct 30, 2:58 PM CDT	Snow Squall Warning Significant damage threat	BIS	Bottineau, Pierce, Rolette	32 min

Nearby

Snow Squall Warnings in North Dakota, 2023 Every snow squall warning in 2023

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.