Alert archive / North Dakota / Mesoscale Discussions in 2005

Mesoscale Discussion 2168

September 9, 20058 counties in Minnesota; 23 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Sep 9, 2005, 5:50 AM CDT for 8 counties in Minnesota; 23 counties in North Dakota. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued: Sep 9, 2005, 5:50 AM CDT (10:50 UTC)
Expired: Sep 9, 2005, 7:15 AM CDT
In force: 85 min
Issued by: the Storm Prediction Center

All 31 counties

Becker County, MN, Clay County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Polk County, MN, Red Lake County, MN, Wilkin County, MN, Barnes County, ND, Benson County, ND, Burleigh County, ND, Cass County, ND, Dickey County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Nelson County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Sheridan County, ND, Steele County, ND, Stutsman County, ND, Traill County, ND, Wells County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 101 km from the middle of the area, began a volume at 10:52 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, 10.8 hours before the alert went out and 172 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: 916 J/kg
Mixed-layer CIN: -137 J/kg
Mixed-layer LCL: 2121 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 28 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 9, 7:38 AM CDT	Mesoscale Discussion	SPC	Aitkin, Becker, Beltrami, Carlton, Cass, Clay and 19 more	37 min
Sep 9, 3:54 PM CDT	Mesoscale Discussion	SPC	Burleigh, Dickey, Emmons, Kidder, LaMoure, Logan and 2 more	96 min

Nearby

Mesoscale Discussions in North Dakota, 2005 Mesoscale Discussions in Minnesota, 2005 Every mesoscale discussion in 2005

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.