Alert archive / North Dakota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 216, NWS Bismarck, ND

September 2, 2019McLean County, Mercer County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Sep 2, 2019, 1:45 PM CDT for McLean County, Mercer County, North Dakota. It was in force for 45 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: Sep 2, 2019, 1:45 PM CDT (18:45 UTC)
Expired: Sep 2, 2019, 2:30 PM CDT
In force: 45 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties McLean County, ND, Mercer County, ND

The radar

The Bismarck radar (KBIS), 98 km from the middle of the area, began a volume at 18:47 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
Sep 2, 1:25 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 6.8 hours before the alert went out and 375 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 847 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 194 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 Sep 2, 12:56 PM CDT, 49 minutes earlier.

Area forecast discussion, Sep 2, 12:56 PM CDT, 49 minutes before

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Hazardous weather outlook, Sep 2, 12:59 PM CDT, 46 minutes before

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In the hours before

Special weather statement, Sep 2, 11:17 AM CDT, 2 hours 28 minutes before

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Local storm report, Sep 2, 11:38 AM CDT, 2 hours 7 minutes before

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Local storm report, Sep 2, 11:47 AM CDT, 1 hour 58 minutes before

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Local storm report, Sep 2, 12:14 PM CDT, 1 hour 31 minutes before

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Local storm report, Sep 2, 12:22 PM CDT, 1 hour 23 minutes before

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Local storm report, Sep 2, 12:52 PM CDT, 53 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
Sep 2, 10:05 AM CDT	Special Weather Statement	BIS	Divide	40 min
Sep 2, 10:43 AM CDT	Special Weather Statement	BIS	Divide	32 min
Sep 2, 10:54 AM CDT	Severe Thunderstorm Warning	BIS	Williams	36 min
Sep 2, 11:17 AM CDT	Special Weather Statement	BIS	Divide	28 min
Sep 2, 11:23 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Divide, Williams	52 min
Sep 2, 11:27 AM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	48 min
Sep 2, 11:31 AM CDT	Severe Thunderstorm Warning	BIS	Williams	44 min
Sep 2, 11:58 AM CDT	Severe Thunderstorm Warning	BIS	Burke, Mountrail	32 min
Sep 2, 12:13 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie	62 min
Sep 2, 12:18 PM CDT	Severe Thunderstorm Warning	BIS	McKenzie, Mountrail, Williams	42 min
Sep 2, 1:00 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, McLean, Mountrail	45 min
Sep 2, 2:31 PM CDT	Special Weather Statement	BIS	McLean, Sheridan, Wells	44 min
Sep 2, 2:52 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, McLean, Oliver	38 min
Sep 2, 3:02 PM CDT	Severe Thunderstorm Warning	BIS	Sheridan, Wells	58 min
Sep 2, 3:25 PM CDT	Special Weather Statement	BIS	Burleigh	35 min
Sep 2, 3:39 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman, Wells	21 min
Sep 2, 3:59 PM CDT	Severe Thunderstorm Warning	BIS	Foster, Kidder, Stutsman	61 min
Sep 2, 4:51 PM CDT	Severe Thunderstorm Warning	BIS	Kidder, LaMoure, Logan, Stutsman	39 min
Sep 2, 5:29 PM CDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	61 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2019 Every severe thunderstorm warning in 2019

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.