Alert archive / North Dakota / Special Weather Statements in 2016

Special Weather Statement, NWS Bismarck, ND

August 10, 2016Williams County, North Dakota

NWS Bismarck, ND issued this special weather statement at Aug 10, 2016, 11:24 PM CDT for Williams County, North Dakota. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 10, 2016, 11:24 PM CDT (04:24 UTC)
Expired: Aug 11, 2016, 12:00 AM CDT
In force: 36 min
Issued by: NWS Bismarck, ND

County Williams County, ND

The radar

The Glasgow radar (KGGW), 199 km from the middle of the area, began a volume at 04:26 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, 4.4 hours before the alert went out and 314 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: 1983 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 863 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 118 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 8.6

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 10, 11:02 PM CDT, 22 minutes earlier.

Area forecast discussion, Aug 10, 11:02 PM CDT, 22 minutes before

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Hazardous weather outlook, Aug 10, 11:10 PM CDT, 14 minutes before

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In the hours before

Local storm report, Aug 10, 10:18 PM CDT, 1 hour 6 minutes before

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Local storm report, Aug 10, 10:24 PM CDT, 1 hour before

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Local storm report, Aug 10, 10:44 PM CDT, 40 minutes before

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Local storm report, Aug 10, 11:08 PM CDT, 16 minutes before

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Special weather statement, Aug 10, 11:17 PM CDT, 7 minutes before

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Special weather statement, Aug 10, 11:24 PM CDT, 0 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
Aug 10, 7:31 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, McLean, Mercer	59 min
Aug 10, 7:39 PM CDT	Severe Thunderstorm Warning	BIS	Dunn, Mercer, Morton, Stark	66 min
Aug 10, 7:43 PM CDT	Tornado Warning	BIS	Morton, Stark	32 min
Aug 10, 8:10 PM CDT	Tornado Warning	BIS	Morton	35 min
Aug 10, 8:22 PM CDT	Severe Thunderstorm Warning	BIS	Mercer, Morton, Oliver	53 min
Aug 10, 9:15 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	45 min
Aug 10, 9:35 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Morton, Oliver	55 min
Aug 10, 10:29 PM CDT	Areal Flood Advisory	BIS	Foster, Wells	6 hr
Aug 10, 11:17 PM CDT	Special Weather Statement	BIS	Divide	28 min
Aug 10, 11:28 PM CDT	Special Weather Statement	BIS	Williams	32 min
Aug 10, 11:51 PM CDT	Areal Flood Warning	BIS	Dickey	36 hr
Aug 10, 11:52 PM CDT	Special Weather Statement	BIS	Williams	38 min
Aug 10, 11:59 PM CDT	Special Weather Statement	BIS	Divide	46 min

Nearby

Special Weather Statements in North Dakota, 2016 Every special weather statement in 2016

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.