Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 41, NWS Bismarck, ND

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

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 8, 2021, 4:28 PM MDT for Grant County, Sioux County, North Dakota. It was in force for 32 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: Jun 8, 2021, 4:28 PM MDT (22:28 UTC)
Expired: Jun 8, 2021, 5:00 PM MDT
In force: 32 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Grant County, ND, Sioux County, ND

The radar

The Bismarck radar (KBIS), 81 km from the middle of the area, began a volume at 22:29 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 12:00Z, 10.5 hours before the alert went out and 83 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.

932 
WUUS53 KBIS 082228
SVRBIS
NDC037-085-082315-
/O.NEW.KBIS.SV.W.0041.210608T2228Z-210608T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
528 PM CDT Tue Jun 8 2021

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  South central Sioux County in south central North Dakota...
  Southeastern Grant County in south central North Dakota...

* Until 615 PM CDT/515 PM MDT/.

* At 528 PM CDT/428 PM MDT/, a severe thunderstorm was located 9
  miles south of Shields, or 11 miles west of Selfridge, moving east
  at 10 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  south central Sioux and southeastern Grant Counties, including the
  following locations... Porcupine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4619 10138 4628 10107 4594 10097 4594 10120
TIME...MOT...LOC 2228Z 250DEG 7KT 4609 10116 

HAIL...1.25IN
WIND...60MPH
 
$$

GALE

2 follow-up statements

654 
WWUS53 KBIS 082249
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
549 PM CDT Tue Jun 8 2021

NDC037-082258-
/O.CAN.KBIS.SV.W.0041.000000T0000Z-210608T2315Z/
Grant ND-
549 PM CDT Tue Jun 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRANT COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4611 10130 4612 10130 4614 10128 4613 10128
      4614 10123 4615 10121 4615 10119 4619 10119
      4621 10112 4623 10110 4624 10111 4627 10107
      4594 10097 4594 10120
TIME...MOT...LOC 2248Z 231DEG 6KT 4612 10116 

$$

NDC085-082315-
/O.CON.KBIS.SV.W.0041.000000T0000Z-210608T2315Z/
Sioux ND-
549 PM CDT Tue Jun 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTH CENTRAL SIOUX COUNTY...

At 548 PM CDT, a severe thunderstorm was located 7 miles south of
Shields, or 12 miles northwest of Selfridge, moving northeast at 5
mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Porcupine.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4611 10130 4612 10130 4614 10128 4613 10128
      4614 10123 4615 10121 4615 10119 4619 10119
      4621 10112 4623 10110 4624 10111 4627 10107
      4594 10097 4594 10120
TIME...MOT...LOC 2248Z 231DEG 6KT 4612 10116 

HAIL...1.00IN
WIND...60MPH
 
$$

GALE

445 
WWUS53 KBIS 082300
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
600 PM CDT Tue Jun 8 2021

NDC085-082309-
/O.CAN.KBIS.SV.W.0041.000000T0000Z-210608T2315Z/
Sioux ND-
600 PM CDT Tue Jun 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL SIOUX COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

LAT...LON 4611 10130 4612 10130 4614 10128 4613 10128
      4614 10123 4615 10121 4615 10119 4619 10119
      4621 10112 4623 10110 4624 10111 4627 10107
      4594 10097 4594 10120
TIME...MOT...LOC 2258Z 250DEG 7KT 4613 10113 

$$

GALE

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, 2:50 PM MDT	Flash Flood Warning	BIS	Grant, Morton	3 hr
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, 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

Severe Thunderstorm Warnings in North Dakota, 2021 Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.