Alert archive / North Dakota / Blizzard Watches in 2009

Blizzard Watch 1, NWS Grand Forks, ND

January 11, 20097 counties in North Dakota; Grant County, Otter Tail County, Wilkin County, Minnesota

NWS Grand Forks, ND issued this blizzard watch at Jan 11, 2009, 4:20 AM CST for 7 counties in North Dakota; Grant County, Otter Tail County, Wilkin County, Minnesota. It took effect at Jan 12, 2009, 12:00 AM CST. It was in force for .

The area

The counties it named.

The facts

Issued: Jan 11, 2009, 4:20 AM CST (10:20 UTC)
In effect from: Jan 12, 2009, 12:00 AM CST
Expired: Jan 11, 2009, 3:00 PM CST
In force
Issued by: NWS Grand Forks, ND

Counties Grant County, MN, Otter Tail County, MN, Wilkin County, MN, Barnes County, ND, Benson County, ND, Eddy County, ND, Griggs County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 85 km from the middle of the area, began a volume at 10:18 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 00:00Z, 10.3 hours before the alert went out and 244 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: 719 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 100 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 blizzard watch 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 blizzard watch went out at Jan 11, 2:50 AM CST, 1 hour 30 minutes earlier.

Area forecast discussion, Jan 11, 2:50 AM CST, 1 hour 30 minutes before

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Hazardous weather outlook, Jan 10, 6:49 AM CST, 21 hours 31 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
Jan 11, 3:00 PM CST	Blizzard Warning	FGF	Barnes, Benson, Cass, Eddy, Griggs, Nelson and 6 more	24 hr
Jan 11, 3:00 PM CST	Winter Weather Advisory	FGF	Cavalier, Grand Forks, Pembina, Traill, Walsh	24 hr

Nearby

Blizzard Watches in North Dakota, 2009 Blizzard Watches in Minnesota, 2009 Every blizzard watch 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.