Alert archive / North Dakota / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 54, NWS Bismarck, ND

July 18, 2023Logan County, McIntosh County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 18, 2023, 9:54 PM CDT for Logan County, McIntosh County, North Dakota. It was in force for 51 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, 2023, 9:54 PM CDT (02:54 UTC)
Expired: Jul 18, 2023, 10:45 PM CDT
In force: 51 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Damage threat: Considerable
Hail: 1.75 in
Wind: 50.0 mph

Counties Logan County, ND, McIntosh County, ND

The radar

The Bismarck radar (KBIS), 113 km from the middle of the area, began a volume at 02:54 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 18, 6:20 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.9 hours before the alert went out and 109 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: 1334 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1872 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -18 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

Open this sounding in Storm Lab

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 18, 7:44 PM CDT	Special Weather Statement	BIS	Wells	16 min
Jul 18, 8:02 PM CDT	Severe Thunderstorm Warning Considerable damage threat	BIS	Wells	43 min
Jul 18, 8:42 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Wells	48 min
Jul 18, 9:31 PM CDT	Special Weather Statement	BIS	Foster	14 min
Jul 18, 10:44 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	46 min
Jul 18, 10:52 PM CDT	Special Weather Statement	BIS	Stutsman	38 min
Jul 19, 12:46 AM CDT	Special Weather Statement	BIS	Rolette	29 min
Jul 19, 1:20 AM CDT	Special Weather Statement	BIS	Rolette	40 min
Jul 19, 2:47 AM CDT	Special Weather Statement	BIS	Rolette	43 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2023 Every severe thunderstorm warning in 2023

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.