Alert archive / Minnesota / Wind Chill Advisories in 2009

Wind Chill Advisory 8, NWS Grand Forks, ND

February 26, 20095 counties in North Dakota; 7 counties in Minnesota

NWS Grand Forks, ND issued this wind chill advisory at Feb 26, 2009, 4:09 AM CST for 5 counties in North Dakota; 7 counties in Minnesota. It took effect at Feb 26, 2009, 6:00 PM CST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Feb 26, 2009, 4:09 AM CST (10:09 UTC)
In effect from: Feb 26, 2009, 6:00 PM CST
Expired: Feb 27, 2009, 12:00 PM CST
In force: 18 hr
Issued by: NWS Grand Forks, ND

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

The radar

The Fargo/Grand Forks radar (KMVX), 124 km from the middle of the area, began a volume at 10:10 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, 10.2 hours before the alert went out and 295 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: 1294 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 114 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 26, 2:30 AM CST, 1 hour 39 minutes earlier.

Area forecast discussion, Feb 26, 2:30 AM CST, 1 hour 39 minutes before

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Hazardous weather outlook, Feb 25, 3:09 PM CST, 13 hours 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
Feb 26, 8:42 AM CST	Winter Weather Advisory	FGF	Griggs, Steele, Traill	9 hr

Nearby

Wind Chill Advisories in Minnesota, 2009 Wind Chill Advisories in North Dakota, 2009 Every wind chill advisory in 2009

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.