Alert archive / Minnesota / Winter Weather Advisories in 2021

Winter Weather Advisory 5, NWS Grand Forks, ND

March 10, 20214 counties in North Dakota; 8 counties in Minnesota

NWS Grand Forks, ND issued this winter weather advisory at Mar 10, 2021, 3:39 AM CST for 4 counties in North Dakota; 8 counties in Minnesota. It took effect at Mar 10, 2021, 12:00 PM CST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Mar 10, 2021, 3:39 AM CST (09:39 UTC)
In effect from: Mar 10, 2021, 12:00 PM CST
Expired: Mar 11, 2021, 1:00 AM CST
In force: 13 hr
Issued by: NWS Grand Forks, ND

Counties Becker County, MN, Clay County, MN, Grant County, MN, Hubbard County, MN, Norman County, MN, Otter Tail County, MN, Wadena County, MN, Wilkin County, MN, Cass County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 126 km from the middle of the area, began a volume at 09:44 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

Minneapolis, MN (KMPX), launched 00:00Z, 9.7 hours before the alert went out and 289 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: 1284 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 266 m²/s²
0-3 km storm-relative helicity: 395 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 10, 3:20 AM CST, 19 minutes earlier.

Area forecast discussion, Mar 10, 3:20 AM CST, 19 minutes before

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Hazardous weather outlook, Mar 9, 4:04 PM CST, 11 hours 35 minutes before

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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 10, 12:47 PM CST	Winter Storm Warning	FGF	Grant, Otter Tail, Wadena	14 hr
Mar 10, 12:47 PM CST	Winter Weather Advisory	FGF	Becker, Beltrami, Clearwater, Hubbard, Mahnomen	14 hr

Nearby

Winter Weather Advisories in Minnesota, 2021 Winter Weather Advisories in North Dakota, 2021 Every 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.