Alert archive / North Dakota / Flash Flood Warnings in 2021

Flash Flood Warning 4, NWS Bismarck, ND

June 8, 2021Grant County, Morton County, North Dakota

NWS Bismarck, ND issued this flash flood warning at Jun 8, 2021, 2:50 PM MDT for Grant County, Morton County, North Dakota. It was in force for 3 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 8, 2021, 2:50 PM MDT (20:50 UTC)
Expired: Jun 8, 2021, 6:00 PM MDT
In force: 3 hr
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Flood severity: None

Counties Grant County, ND, Morton County, ND

The radar

The Bismarck radar (KBIS), 65 km from the middle of the area, began a volume at 20:53 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.

What was reported inside it

Time	Report	Where	Remark
Jun 8, 5:30 PM MDT	FLOOD	6 E Raleigh, ND	TWITTER PHOTO OF WATER AND FLOODING WASHED OUT 75TH STREET SW NEAR FREDA ND.
Jun 8, 5:30 PM MDT	FLASH FLOOD	6 E Raleigh, ND	CORRECTS PREVIOUS FLOOD REPORT FROM 6 E RALEIGH. TWITTER PHOTO OF WATER AND FLOODING WASHED OUT 75TH STREET SW NEAR FREDA ND.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 8.8 hours before the alert went out and 67 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: 534 J/kg
Mixed-layer CIN: -518 J/kg
Mixed-layer LCL: 1161 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 267 m²/s²
0-3 km storm-relative helicity: 165 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.5

Open this sounding in Storm Lab

The text

As transmitted.

845 
WGUS53 KBIS 082050
FFWBIS
NDC037-059-090000-
/O.NEW.KBIS.FF.W.0004.210608T2050Z-210609T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Bismarck ND
250 PM MDT Tue Jun 8 2021

The National Weather Service in Bismarck has issued a

* Flash Flood Warning for...
  Southeastern Grant County in south central North Dakota...
  South Central Morton County in south central North Dakota...

* Until 600 PM MDT /700 PM CDT/.

* At 250 PM MDT /350 PM CDT/, Doppler radar indicated thunderstorms 
  producing heavy rain across the warned area. Between 2 and 4 
  inches of rain have fallen. Additional rainfall amounts of 1 to 2 
  inches are possible in the warned area. Flash flooding is ongoing 
  or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Flasher, Shields, Raleigh, St. Gertrude, and Breien.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4643 10130 4648 10106 4640 10091 4633 10097
      4632 10102 4630 10100 4628 10102 4627 10110
      4627 10109 4624 10112 4624 10111 4621 10112
      4619 10119 4615 10119 4613 10130 4613 10131
      4611 10130 4610 10134 4617 10148

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR

$$

Hollan

1 follow-up statement

804 
WGUS73 KBIS 082210
FFSBIS

Flash Flood Statement
National Weather Service Bismarck ND
410 PM MDT Tue Jun 8 2021

NDC037-059-090000-
/O.CON.KBIS.FF.W.0004.000000T0000Z-210609T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grant ND-Morton ND-
410 PM MDT Tue Jun 8 2021 /510 PM CDT Tue Jun 8 2021/

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 PM MDT/7 PM CDT/ 
THIS EVENING FOR SOUTHEASTERN GRANT AND SOUTH CENTRAL MORTON 
COUNTIES...

At 410 PM MDT /510 PM CDT/, Doppler radar indicated thunderstorms 
producing heavy rain across the warned area. Between 3 and 6 inches 
of rain have fallen. Additional rainfall amounts of 1 to 2 inches 
are possible in the warned area. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Flasher, Shields, Raleigh, St. Gertrude, and Breien.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4643 10130 4648 10106 4640 10091 4633 10097
      4632 10102 4630 10100 4628 10102 4627 10110
      4627 10109 4624 10112 4624 10111 4621 10112
      4619 10119 4615 10119 4613 10130 4613 10131
      4611 10130 4610 10134 4617 10148

FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...0.5-1 INCH IN 1 HOUR

$$

Hollan

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 6:38 PM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	67 min
Jun 7, 6:44 PM MDT	Special Weather Statement	BIS	Emmons	31 min
Jun 7, 6:58 PM MDT	Tornado Warning	BIS	LaMoure, Stutsman	32 min
Jun 7, 7:01 PM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	44 min
Jun 7, 7:23 PM MDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	52 min
Jun 7, 7:44 PM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Logan, Stutsman	61 min
Jun 7, 7:50 PM MDT	Tornado Warning	BIS	LaMoure, Stutsman	25 min
Jun 7, 8:26 PM MDT	Severe Thunderstorm Warning	BIS	LaMoure	64 min
Jun 7, 9:07 PM MDT	Special Weather Statement	BIS	Dickey	38 min
Jun 7, 9:57 PM MDT	Special Weather Statement	BIS	Logan	48 min
Jun 7, 10:36 PM MDT	Special Weather Statement	BIS	LaMoure	39 min
Jun 7, 10:41 PM MDT	Severe Thunderstorm Warning	BIS	Dickey, LaMoure	49 min
Jun 7, 10:51 PM MDT	Severe Thunderstorm Warning	BIS	Logan, McIntosh	39 min
Jun 7, 11:26 PM MDT	Severe Thunderstorm Warning	BIS	LaMoure	28 min
Jun 8, 12:44 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	61 min
Jun 8, 12:53 AM MDT	Special Weather Statement	BIS	Stutsman	37 min
Jun 8, 1:27 AM MDT	Special Weather Statement	BIS	Stutsman	33 min
Jun 8, 1:44 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	61 min
Jun 8, 1:56 AM MDT	Special Weather Statement	BIS	Stutsman	34 min
Jun 8, 2:11 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	28 min
Jun 8, 2:58 AM MDT	Areal Flood Advisory	BIS	LaMoure, Stutsman	4 hr
Jun 8, 3:00 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	60 min
Jun 8, 3:46 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure	59 min
Jun 8, 3:57 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	63 min
Jun 8, 4:13 AM MDT	Areal Flood Advisory	BIS	Stutsman	3 hr
Jun 8, 5:00 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure, Stutsman	60 min
Jun 8, 5:09 AM MDT	Severe Thunderstorm Warning	BIS	LaMoure	66 min
Jun 8, 6:07 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	38 min
Jun 8, 6:50 AM MDT	Severe Thunderstorm Warning	BIS	Stutsman	55 min
Jun 8, 7:02 AM MDT	Severe Thunderstorm Warning	BIS	Kidder	43 min
Jun 8, 7:15 AM MDT	Areal Flood Advisory	BIS	Kidder, Stutsman	3 hr
Jun 8, 8:04 AM MDT	Severe Thunderstorm Warning	BIS	Kidder	41 min
Jun 8, 9:06 AM MDT	Severe Thunderstorm Warning	BIS	Kidder	39 min
Jun 8, 9:44 AM MDT	Severe Thunderstorm Warning	BIS	Emmons, Kidder, Logan	46 min
Jun 8, 10:07 AM MDT	Flash Flood Warning	BIS	Kidder	3 hr
Jun 8, 10:27 AM MDT	Severe Thunderstorm Warning	BIS	Emmons	33 min
Jun 8, 10:44 AM MDT	Areal Flood Advisory	BIS	Kidder, LaMoure, Stutsman	4 hr
Jun 8, 11:05 AM MDT	Special Weather Statement	BIS	Emmons	55 min
Jun 8, 11:23 AM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Emmons, Kidder	52 min
Jun 8, 11:32 AM MDT	Flash Flood Warning	BIS	Burleigh, Emmons	3 hr
Jun 8, 11:59 AM MDT	Severe Thunderstorm Warning	BIS	Sioux	61 min
Jun 8, 12:39 PM MDT	Flash Flood Warning Considerable damage threat	BIS	Burleigh, Emmons, Kidder	2 hr
Jun 8, 12:45 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	60 min
Jun 8, 1:00 PM MDT	Areal Flood Warning	BIS	Kidder	2 hr
Jun 8, 1:43 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton	62 min
Jun 8, 2:34 PM MDT	Areal Flood Advisory	BIS	Grant, Morton, Sioux	3 hr
Jun 8, 2:45 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Morton	60 min
Jun 8, 2:57 PM MDT	Areal Flood Warning	BIS	Burleigh, Emmons, Kidder	6 hr
Jun 8, 3:04 PM MDT	Areal Flood Advisory	BIS	LaMoure, Stutsman	10 hr
Jun 8, 3:26 PM MDT	Special Weather Statement	BIS	Burleigh	34 min
Jun 8, 3:41 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	49 min
Jun 8, 3:50 PM MDT	Special Weather Statement	BIS	Adams	40 min
Jun 8, 4:28 PM MDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	32 min
Jun 8, 5:31 PM MDT	Areal Flood Advisory	BIS	Sioux	10 hr
Jun 8, 5:32 PM MDT	Severe Thunderstorm Warning	BIS	Golden Valley, McKenzie	58 min

Nearby

Flash Flood Warnings in North Dakota, 2021 Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.