Alert archive / Minnesota / Mesoscale Discussions in 2016

Mesoscale Discussion 1334

July 19, 201610 counties in Minnesota; 4 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 19, 2016, 8:10 PM CDT for 10 counties in Minnesota; 4 counties in North Dakota. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued: Jul 19, 2016, 8:10 PM CDT (01:10 UTC)
Expired: Jul 19, 2016, 9:45 PM CDT
In force: 95 min
Issued by: the Storm Prediction Center

Counties Becker County, MN, Beltrami County, MN, Clay County, MN, Clearwater County, MN, Hubbard County, MN, Mahnomen County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Cass County, ND, Grand Forks County, ND, Steele County, ND, Traill County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 72 km from the middle of the area, began a volume at 01:10 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

International Fa, MN (KINL), launched 00:00Z, 1.2 hours before the alert went out and 255 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: 581 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 1561 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 19, 9:51 PM CDT	Mesoscale Discussion	SPC	Becker, Cass, Hubbard, Mahnomen	54 min
Jul 20, 3:43 PM CDT	Mesoscale Discussion	SPC	Adams, Benson, Bottineau, Burleigh, Emmons, Grant and 16 more	92 min
Jul 20, 4:01 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Benson, Bottineau, Burke, Burleigh, Cavalier and 28 more	8 hr
Jul 20, 5:39 PM CDT	Tornado Watch	SPC	Benson, Bottineau, Cavalier, McHenry, Pierce, Ramsey and 4 more	5 hr
Jul 20, 5:43 PM CDT	Mesoscale Discussion	SPC	Benson, Bottineau, McHenry, Pierce, Renville, Rolette and 2 more	62 min

Nearby

Mesoscale Discussions in Minnesota, 2016 Mesoscale Discussions in North Dakota, 2016 Every mesoscale discussion in 2016

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.