Alert archive / Minnesota / Wind Chill Advisories in 2018

Wind Chill Advisory 14, NWS Grand Forks, ND

February 4, 201816 counties in Minnesota; 14 counties in North Dakota

NWS Grand Forks, ND issued this wind chill advisory at Feb 4, 2018, 2:41 PM CST for 16 counties in Minnesota; 14 counties in North Dakota. It took effect at Feb 4, 2018, 6:00 PM CST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Feb 4, 2018, 2:41 PM CST (20:41 UTC)
In effect from: Feb 4, 2018, 6:00 PM CST
Expired: Feb 5, 2018, 6:56 AM CST
In force: 13 hr
Issued by: NWS Grand Forks, ND

All 30 counties

Becker County, MN, Beltrami County, MN, Clay 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, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Wadena County, MN, Barnes County, ND, Benson County, ND, Cass County, ND, Cavalier County, ND, Eddy County, ND, Grand Forks County, ND, Griggs 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), 42 km from the middle of the area, began a volume at 20:44 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

International Fa, MN (KINL), launched 12:00Z, 8.7 hours before the alert went out and 281 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: 953 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 99 m²/s²
0-3 km storm-relative helicity: 131 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 wind chill 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 wind chill advisory went out at Feb 3, 3:25 PM CST, 23 hours 16 minutes earlier.

Area forecast discussion, Feb 3, 3:25 PM CST, 23 hours 16 minutes before

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Nearby

Wind Chill Advisories in Minnesota, 2018 Wind Chill Advisories in North Dakota, 2018 Every wind chill advisory in 2018

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.