Alert archive / North Dakota / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 213, NWS Bismarck, ND

July 18, 2018Burke County, Divide County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 18, 2018, 3:55 PM CDT for Burke County, Divide County, North Dakota. It was in force for 65 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 18, 2018, 3:55 PM CDT (20:55 UTC)
Expired: Jul 18, 2018, 5:00 PM CDT
In force: 65 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Burke County, ND, Divide County, ND

The radar

The Minot AFB radar (KMBX), 164 km from the middle of the area, began a volume at 20:58 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, 8.9 hours before the alert went out and 284 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: 1090 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 1002 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: -3 m²/s²
0-3 km storm-relative helicity: 9 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 severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Bismarck, ND wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 18, 3:10 PM CDT, 45 minutes earlier.

Area forecast discussion, Jul 18, 3:10 PM CDT, 45 minutes before

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Hazardous weather outlook, Jul 18, 2:41 PM CDT, 1 hour 14 minutes before

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In the hours before

Local storm report, Jul 18, 3:15 PM CDT, 40 minutes before

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Special weather statement, Jul 18, 3:25 PM CDT, 30 minutes before

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The office that day

Everything else NWS Bismarck, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 18, 2:21 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	54 min
Jul 18, 2:44 PM CDT	Severe Thunderstorm Warning	BIS	Mountrail, Williams	31 min
Jul 18, 3:25 PM CDT	Special Weather Statement	BIS	Mountrail	35 min
Jul 18, 4:04 PM CDT	Special Weather Statement	BIS	Wells	41 min
Jul 18, 4:11 PM CDT	Special Weather Statement	BIS	Bottineau	49 min
Jul 18, 4:56 PM CDT	Severe Thunderstorm Warning	BIS	Burke	31 min
Jul 18, 5:03 PM CDT	Special Weather Statement	BIS	Wells	42 min
Jul 18, 5:06 PM CDT	Special Weather Statement	BIS	Rolette	39 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2018 Every severe thunderstorm warning in 2018

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.