Alert archive / North Dakota / Mesoscale Discussions in 2005

Mesoscale Discussion 1537

June 29, 200511 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 29, 2005, 4:03 AM CDT for 11 counties in North Dakota. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jun 29, 2005, 4:03 AM CDT (09:03 UTC)
Expired: Jun 29, 2005, 5:30 AM CDT
In force: 87 min
Issued by: the Storm Prediction Center

Counties Benson County, ND, Dickey County, ND, Emmons County, ND, Foster County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Pierce County, ND, Stutsman County, ND, Wells County, ND

The radar

The Bismarck radar (KBIS), 110 km from the middle of the area, began a volume at 09:03 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, 9.1 hours before the alert went out and 106 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: 777 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 917 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 186 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.4

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
Jun 28, 8:50 PM CDT	Severe Thunderstorm Watch	SPC	Adams, Billings, Bowman, Burke, Divide, Dunn and 7 more	7 hr
Jun 28, 11:11 PM CDT	Mesoscale Discussion	SPC	Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 24 more	94 min
Jun 28, 11:35 PM CDT	Severe Thunderstorm Watch	SPC	Bottineau, Burke, Burleigh, Emmons, Grant, Kidder and 15 more	6 hr
Jun 29, 11:01 AM CDT	Mesoscale Discussion	SPC	Dickey, LaMoure, Ransom, Richland, Sargent	59 min
Jun 29, 11:30 AM CDT	Tornado Watch	SPC	Dickey, Sargent	7 hr
Jun 29, 1:52 PM CDT	Mesoscale Discussion	SPC	Sargent	113 min
Jun 29, 3:37 PM CDT	Mesoscale Discussion	SPC	Cass, Richland	53 min
Jun 29, 3:50 PM CDT	Tornado Watch	SPC	Richland	7 hr

Nearby

Mesoscale Discussions in North Dakota, 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.