Alert archive / Minnesota / Winter Weather Advisories in 2026

Winter Weather Advisory 21, NWS Grand Forks, ND

March 12, 202613 counties in Minnesota; 10 counties in North Dakota

NWS Grand Forks, ND issued this winter weather advisory at Mar 12, 2026, 4:35 AM CDT for 13 counties in Minnesota; 10 counties in North Dakota. It took effect at Mar 12, 2026, 1:00 PM CDT. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Mar 12, 2026, 4:35 AM CDT (09:35 UTC)
In effect from: Mar 12, 2026, 1:00 PM CDT
Expired: Mar 13, 2026, 7:00 AM CDT
In force: 18 hr
Issued by: NWS Grand Forks, ND

All 23 counties

Becker County, MN, Beltrami County, MN, Clearwater County, MN, Hubbard County, MN, Kittson County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Benson County, ND, Cavalier County, ND, Grand Forks County, ND, Nelson County, ND, Pembina County, ND, Ramsey County, ND, Steele County, ND, Towner County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 65 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 366 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: 1587 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 144 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 weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Forks, ND wrote its last area forecast discussion before this winter weather advisory went out at Mar 11, 11:56 PM CDT, 4 hours 39 minutes earlier.

Area forecast discussion, Mar 11, 11:56 PM CDT, 4 hours 39 minutes before

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Hazardous weather outlook, Mar 11, 10:05 PM CDT, 6 hours 30 minutes before

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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 12, 4:04 AM CDT	Winter Weather Advisory	FGF	Becker, Clay, Clearwater, Grant, Hubbard, Mahnomen and 6 more	31 min
Mar 12, 10:34 AM CDT	Blizzard Warning	FGF	Kittson, Marshall, Polk	16 hr

Nearby

Winter Weather Advisories in Minnesota, 2026 Winter Weather Advisories in North Dakota, 2026 Every winter weather advisory in 2026

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.