Alert archive / North Dakota / Mesoscale Discussions in 2020

Mesoscale Discussion 917

June 14, 202023 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 14, 2020, 5:19 PM MDT for 23 counties in North Dakota. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Jun 14, 2020, 5:19 PM MDT (23:19 UTC)
Expired
Jun 14, 2020, 7:15 PM MDT
In force
116 min
Issued by
the Storm Prediction Center
Concerning
Severe thunderstorm watch 281
All 23 counties

Adams County, ND, Billings County, ND, Bottineau County, ND, Bowman County, ND, Burleigh County, ND, Dunn County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, McHenry County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Pierce County, ND, Renville County, ND, Sheridan County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Wells County, ND

The radar

The Bismarck radar (KBIS), 122 km from the middle of the area, began a volume at 23:19 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 12:00Z, 11.3 hours before the alert went out and 126 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-pSkew-T log-p diagram, Bismarck Municip, ND at 12:00Z on 2020-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 12:00Z on 2020-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 235 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1386 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
235 m²/s²
0-3 km storm-relative helicity
236 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

IssuedProductOfficeCountiesLasted
Jun 14, 1:20 PM MDTMesoscale DiscussionSPCAdams, Billings, Bottineau, Bowman, Burke, Burleigh and 20 more115 min
Jun 14, 2:20 PM MDTSevere Thunderstorm WatchSPCAdams, Billings, Bottineau, Bowman, Burke, Burleigh and 22 more8 hr

Nearby

Mesoscale Discussions in North Dakota, 2020Every mesoscale discussion in 2020

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.