Alert archive / North Dakota / River Flood Watches in 2018

River Flood Watch 7, NWS Grand Forks, ND

April 18, 2018Traill County, North Dakota

NWS Grand Forks, ND issued this river flood watch at Apr 18, 2018, 12:31 PM CDT for Traill County, North Dakota. It took effect at Apr 21, 2018, 8:42 AM CDT. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Apr 18, 2018, 12:31 PM CDT (17:31 UTC)
In effect from
Apr 21, 2018, 8:42 AM CDT
Expired
Apr 21, 2018, 11:05 AM CDT
In force
2 hr
Issued by
NWS Grand Forks, ND
Area
Storm-based polygon
Flood severity
None

County Traill County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 15 km from the middle of the area, began a volume at 17:34 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 Goose River at Hillsboro (HGRN8). The gauge peaked at 11.66 ft at Apr 22, 2018, 11:00 AM CDT.

actionminormoderate51004/1804/1904/2004/2104/22
Action stage
7 ft
Minor stage
10 ft
Moderate stage
13 ft
Major stage
16 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05066500, 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 watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Forks, ND wrote its last area forecast discussion before this river flood watch went out at Apr 18, 12:23 PM CDT, 8 minutes earlier.

Area forecast discussion, Apr 18, 12:23 PM CDT, 8 minutes before
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Hazardous weather outlook, Apr 18, 3:25 AM CDT, 9 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Grand Forks ND
325 AM CDT Wed Apr 18 2018

MNZ001>009-013>017-022>024-027>032-040-NDZ006>008-014>016-024-
026>030-038-039-049-052>054-190830-
West Polk-Norman-Clay-Kittson-Roseau-Lake Of The Woods-
West Marshall-East Marshall-North Beltrami-Pennington-Red Lake-
East Polk-North Clearwater-South Beltrami-Mahnomen-
South Clearwater-Hubbard-West Becker-East Becker-Wilkin-
West Otter Tail-East Otter Tail-Wadena-Grant-Towner-Cavalier-
Pembina-Benson-Ramsey-Eastern Walsh County-Eddy-Nelson-
Grand Forks-Griggs-Steele-Traill-Barnes-Cass-Ransom-Sargent-
Richland-Western Walsh County-
325 AM CDT Wed Apr 18 2018

This hazardous weather outlook is for portions of eastern North
Dakota, west central and northwest Minnesota.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

Steady snowmelt will continue this week, but it will accelerate
even more by Friday through Tuesday, as overnight lows also stay
above freezing. This period of warmer temperatures will result in
ponding of water in low lying areas and increased runoff into the
local river system. Please refer to the latest hydrologic outlook,
hydrologic statements, and flood statements for the latest
information on river flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 11:35 AM CDTRiver Flood WarningFGFPolk11 days
Apr 18, 11:35 AM CDTRiver Flood WarningFGFMarshall, Polk12 days
Apr 18, 11:35 AM CDTRiver Flood WarningFGFPolk5 days
Apr 18, 11:35 AM CDTRiver Flood WarningFGFCass7 days
Apr 18, 12:31 PM CDTRiver Flood WatchFGFWalsh23 hr

Nearby

River Flood Watches in North Dakota, 2018Every river flood watch in 2018

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.