Alert archive / North Dakota / Tornado Warnings in 2020

Tornado Warning 3, NWS Bismarck, ND

June 28, 2020Grant County, Morton County, Sioux County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 28, 2020, 7:37 PM MDT for Grant County, Morton County, Sioux County, North Dakota. It was in force for 23 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 28, 2020, 7:37 PM MDT (01:37 UTC)
Expired: Jun 28, 2020, 8:00 PM MDT
In force: 23 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Observed
Hail: 1.0 in

Counties Grant County, ND, Morton County, ND, Sioux County, ND

The radar

The Bismarck radar (KBIS), 52 km from the middle of the area, began a volume at 01:39 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 28, 2:09 PM MDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 1.6 hours before the alert went out and 53 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: 1238 J/kg
Mixed-layer CIN: -112 J/kg
Mixed-layer LCL: 2065 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

As transmitted.

094 
WFUS53 KBIS 290137
TORBIS
NDC037-059-085-290200-
/O.NEW.KBIS.TO.W.0003.200629T0137Z-200629T0200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
837 PM CDT Sun Jun 28 2020

The National Weather Service in Bismarck has issued a

* Tornado Warning for...
  Northeastern Sioux County in south central North Dakota...
  South central Morton County in south central North Dakota...
  Eastern Grant County in south central North Dakota...

* Until 900 PM CDT/800 PM MDT/.

* At 836 PM CDT/736 PM MDT/, a confirmed tornado was located 9 miles
  west of Solen, or 21 miles north of Selfridge, moving northeast at
  15 mph.

  HAZARD...Damaging tornado and quarter size hail.

  SOURCE...Public confirmed tornado.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  northeastern Sioux, south central Morton and eastern Grant
  Counties, including the following locations... Breien.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
basement or an interior room on the lowest floor of a sturdy
building. Avoid windows. If you are outdoors, in a mobile home, or in
a vehicle, move to the closest substantial shelter and protect
yourself from flying debris.

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

&&

LAT...LON 4626 10103 4636 10116 4647 10092 4632 10083
TIME...MOT...LOC 0136Z 239DEG 13KT 4635 10098 

TORNADO...OBSERVED
HAIL...1.00IN

$$

HOLLAN

2 follow-up statements

377 
WWUS53 KBIS 290146
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
846 PM CDT Sun Jun 28 2020

NDC037-290155-
/O.CAN.KBIS.TO.W.0003.000000T0000Z-200629T0200Z/
Grant ND-
846 PM CDT Sun Jun 28 2020

...THE TORNADO WARNING FOR EASTERN GRANT COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for south central
North Dakota.

LAT...LON 4626 10102 4641 10106 4647 10092 4632 10083
TIME...MOT...LOC 0145Z 239DEG 13KT 4637 10094 

$$

NDC059-085-290200-
/O.CON.KBIS.TO.W.0003.000000T0000Z-200629T0200Z/
Sioux ND-Morton ND-
846 PM CDT Sun Jun 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 900 PM CDT FOR
NORTHEASTERN SIOUX AND SOUTH CENTRAL MORTON COUNTIES...
    
At 845 PM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles west of Solen, or 22 miles north of Selfridge,
moving northeast at 15 mph.

HAZARD...Tornado and ping pong ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur. Tree damage is 
         likely.

Locations impacted include...
Breien.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 4626 10102 4641 10106 4647 10092 4632 10083
TIME...MOT...LOC 0145Z 239DEG 13KT 4637 10094 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

HOLLAN

168 
WWUS53 KBIS 290156
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
856 PM CDT Sun Jun 28 2020

NDC059-085-290206-
/O.EXP.KBIS.TO.W.0003.000000T0000Z-200629T0200Z/
Sioux ND-Morton ND-
856 PM CDT Sun Jun 28 2020

...THE TORNADO WARNING FOR NORTHEASTERN SIOUX AND SOUTH CENTRAL
MORTON COUNTIES WILL EXPIRE AT 900 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 1000 PM CDT for south central
North Dakota.

LAT...LON 4626 10102 4641 10106 4647 10092 4632 10083
TIME...MOT...LOC 0156Z 239DEG 13KT 4638 10090 

$$

HOLLAN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 6:04 PM MDT	Severe Thunderstorm Warning	BIS	Morton, Oliver	56 min
Jun 28, 6:16 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	59 min
Jun 28, 6:24 PM MDT	Severe Thunderstorm Warning	BIS	Renville, Ward	66 min
Jun 28, 6:37 PM MDT	Severe Thunderstorm Warning	BIS	Bottineau	38 min
Jun 28, 6:45 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton, Oliver	60 min
Jun 28, 6:50 PM MDT	Severe Thunderstorm Warning	BIS	Burleigh, Morton	55 min
Jun 28, 6:52 PM MDT	Severe Thunderstorm Warning	BIS	Morton	53 min
Jun 28, 7:13 PM MDT	Severe Thunderstorm Warning	BIS	Bottineau	47 min
Jun 28, 7:43 PM MDT	Severe Thunderstorm Warning	BIS	Morton, Sioux	62 min
Jun 28, 8:11 PM MDT	Special Weather Statement	BIS	Bottineau	34 min
Jun 28, 8:26 PM MDT	Severe Thunderstorm Warning	BIS	Sioux	45 min
Jun 28, 8:53 PM MDT	Special Weather Statement	BIS	Burleigh	37 min
Jun 28, 8:57 PM MDT	Special Weather Statement	BIS	Emmons	48 min
Jun 28, 9:17 PM MDT	Special Weather Statement	BIS	Burleigh	28 min
Jun 28, 9:34 PM MDT	Special Weather Statement	BIS	Emmons	56 min
Jun 28, 10:28 PM MDT	Special Weather Statement	BIS	Kidder, Logan, McIntosh	62 min
Jun 29, 12:25 AM MDT	Special Weather Statement	BIS	Dickey	35 min
Jun 29, 3:39 AM MDT	Heat Advisory	BIS	Burleigh, Dickey, Emmons, Foster, Grant, Kidder and 10 more	15 hr
Jun 29, 1:43 PM MDT	Flash Flood Watch	BIS	Adams, Billings, Bottineau, Burke, Burleigh, Divide and 14 more	31 hr
Jun 29, 4:50 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	55 min
Jun 29, 5:13 PM MDT	Special Weather Statement	BIS	Dunn	17 min
Jun 29, 5:24 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie	51 min
Jun 29, 5:45 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Golden Valley, McKenzie	30 min

Nearby

Tornado Warnings in North Dakota, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.