Alert archive / North Dakota / River Flood Warnings in 2025

River Flood Warning 1, NWS Bismarck, ND

May 16, 2025Morton County, Sioux County, North Dakota

NWS Bismarck, ND issued this river flood warning at May 16, 2025, 4:49 PM CDT for Morton County, Sioux County, North Dakota. It took effect at May 16, 2025, 6:00 PM CDT. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: May 16, 2025, 4:49 PM CDT (21:49 UTC)
In effect from: May 16, 2025, 6:00 PM CDT
Expired: May 17, 2025, 10:08 AM CDT
In force: 16 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Flood severity: Minor

Counties Morton County, ND, Sioux County, ND

The radar

The Bismarck radar (KBIS), 50 km from the middle of the area, began a volume at 21:49 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 river

Written for the forecast point Cannonball River at Breien (BREN8).

Action stage: 8 ft
Minor stage: 10 ft
Moderate stage: 20 ft
Major stage: 23 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 06354000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at May 16, 3:00 PM CDT, 1 hour 49 minutes earlier.

Area forecast discussion, May 16, 3:00 PM CDT, 1 hour 49 minutes before

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Hazardous weather outlook, May 16, 2:16 PM CDT, 2 hours 33 minutes before

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In the hours before

Local storm report, May 16, 11:22 AM CDT, 5 hours 27 minutes before

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Local storm report, May 16, 11:24 AM CDT, 5 hours 25 minutes before

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Local storm report, May 16, 11:31 AM CDT, 5 hours 18 minutes before

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Local storm report, May 16, 11:39 AM CDT, 5 hours 10 minutes before

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Local storm report, May 16, 11:40 AM CDT, 5 hours 9 minutes before

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Local storm report, May 16, 4:37 PM CDT, 12 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
May 16, 3:10 AM CDT	Freeze Watch	BIS	Adams, Billings, Bottineau, Bowman, Burke, Divide and 11 more	11 hr
May 16, 4:34 AM CDT	High Wind Warning	BIS	Bowman	14 hr
May 16, 2:04 PM CDT	Frost Advisory	BIS	Burleigh, Grant, McHenry, Oliver, Pierce, Sheridan	20 hr
May 16, 2:04 PM CDT	Freeze Warning	BIS	Adams, Billings, Bottineau, Bowman, Burke, Divide and 11 more	20 hr

Nearby

River Flood Warnings in North Dakota, 2025 Every river flood warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.