Alert archive / North Dakota / Areal Flood Advisories in 2021

Areal Flood Advisory 9, NWS Bismarck, ND

June 8, 2021Hettinger County, Stark County, North Dakota

NWS Bismarck, ND issued this areal flood advisory at Jun 8, 2021, 10:28 PM MDT for Hettinger County, Stark County, North Dakota. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Jun 8, 2021, 10:28 PM MDT (04:28 UTC)
Expired: Jun 9, 2021, 3:18 AM MDT
In force: 5 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon

Counties Hettinger County, ND, Stark County, ND

The radar

The Bismarck radar (KBIS), 138 km from the middle of the area, began a volume at 04:31 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, 4.5 hours before the alert went out and 143 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: 113 J/kg
Mixed-layer CIN: -181 J/kg
Mixed-layer LCL: 2317 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 176 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 areal flood advisory 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 areal flood advisory went out at Jun 8, 9:36 PM MDT, 52 minutes earlier.

Area forecast discussion, Jun 8, 9:36 PM MDT, 52 minutes before

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Hazardous weather outlook, Jun 8, 9:23 PM MDT, 1 hour 5 minutes before

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In the hours before

Local storm report, Jun 8, 7:57 PM MDT, 2 hours 31 minutes before

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Special weather statement, Jun 8, 7:57 PM MDT, 2 hours 31 minutes before

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Local storm report, Jun 8, 8:19 PM MDT, 2 hours 9 minutes before

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Special weather statement, Jun 8, 8:34 PM MDT, 1 hour 54 minutes before

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Special weather statement, Jun 8, 9:19 PM MDT, 1 hour 9 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Special weather statement, Jun 8, 9:48 PM MDT, 40 minutes before

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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 6:00 PM MDT	Areal Flood Warning	BIS	Grant, Morton	14 hr
Jun 8, 6:25 PM MDT	Severe Thunderstorm Warning	BIS	Golden Valley, McKenzie	65 min
Jun 8, 7:02 PM MDT	Special Weather Statement	BIS	Billings, Golden Valley	43 min
Jun 8, 7:08 PM MDT	Special Weather Statement	BIS	Burke, Mountrail	37 min
Jun 8, 7:12 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie	20 min
Jun 8, 7:22 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, McKenzie	38 min
Jun 8, 7:57 PM MDT	Special Weather Statement	BIS	Dunn	48 min
Jun 8, 8:34 PM MDT	Special Weather Statement	BIS	Burke, Mountrail, Renville, Ward	41 min
Jun 8, 9:48 PM MDT	Special Weather Statement	BIS	Stark	27 min
Jun 8, 10:14 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	61 min
Jun 8, 10:58 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger, Sioux	47 min
Jun 8, 11:01 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Hettinger, Morton, Stark	59 min
Jun 8, 11:43 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	47 min
Jun 9, 7:37 AM MDT	River Flood Warning	BIS	Morton, Sioux	23 hr

Nearby

Areal Flood Advisories in North Dakota, 2021 Every areal flood advisory in 2021

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.