Alert archive / North Dakota / Tornado Warnings in 2020

Tornado Warning 1, NWS Bismarck, ND

June 7, 2020McIntosh County, North Dakota

NWS Bismarck, ND issued this tornado warning at Jun 7, 2020, 6:44 PM CDT for McIntosh County, North Dakota. It was in force for 31 min. 1 report 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 7, 2020, 6:44 PM CDT (23:44 UTC)
Expired: Jun 7, 2020, 7:15 PM CDT
In force: 31 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Tornado: Observed
Hail: 3.0 in

County McIntosh County, ND

The radar

The Aberdeen radar (KABR), 106 km from the middle of the area, began a volume at 23:48 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 7, 6:45 PM CDT	TORNADO	2 W Ashley, ND	MCINTOSH COUNTY SHERIFFS OFFICE CONFIRMED TORNADO.

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

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 7, 3:06 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.7 hours before the alert went out and 124 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1944 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 340 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

982 
WFUS53 KBIS 072344
TORBIS
NDC051-080015-
/O.NEW.KBIS.TO.W.0001.200607T2344Z-200608T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Bismarck ND
644 PM CDT Sun Jun 7 2020

The National Weather Service in Bismarck has issued a

* Tornado Warning for...
  Central McIntosh County in southeastern North Dakota...

* Until 715 PM CDT.

* At 643 PM CDT, a confirmed tornado was located near Ashley, moving 
  northeast at 15 mph.

  HAZARD...Damaging tornado and hail up to three inches in diameter.

  SOURCE...Law enforcement 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
  central McIntosh County, including the following locations...
  Danzig.

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.

&&

LAT...LON 4606 9958 4628 9937 4628 9932 4614 9902
      4594 9941
TIME...MOT...LOC 2343Z 221DEG 13KT 4606 9942 

TORNADO...OBSERVED
HAIL...3.00IN

$$

CJS

1 follow-up statement

971 
WWUS53 KBIS 072355
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
655 PM CDT Sun Jun 7 2020

NDC051-080015-
/O.CON.KBIS.TO.W.0001.000000T0000Z-200608T0015Z/
McIntosh ND-
655 PM CDT Sun Jun 7 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR EASTERN
MCINTOSH COUNTY...
    
At 654 PM CDT, a confirmed tornado was located 6 miles northeast of
Ashley, moving northeast at 30 mph.

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Law enforcement 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.

Locations impacted include...
Rural areas of McIntosh County northeast of Ashley. 

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.

&&

LAT...LON 4606 9953 4628 9937 4628 9932 4614 9902
      4597 9941
TIME...MOT...LOC 2354Z 231DEG 26KT 4610 9930 

TORNADO...OBSERVED
HAIL...1.75IN

$$

CJS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 8:04 PM CDT	Wind Advisory	BIS	Burke, Divide, McKenzie, Mountrail, Renville, Williams	87 min
Jun 6, 8:40 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Hettinger, Slope	65 min
Jun 6, 9:35 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Sioux	55 min
Jun 6, 9:47 PM CDT	Severe Thunderstorm Warning	BIS	Adams, Hettinger, Slope, Stark	58 min
Jun 6, 10:24 PM CDT	Severe Thunderstorm Warning	BIS	Grant, Morton, Sioux	51 min
Jun 6, 11:09 PM CDT	Special Weather Statement	BIS	McLean, Mercer, Oliver	51 min
Jun 6, 11:10 PM CDT	Special Weather Statement	BIS	Morton	50 min
Jun 6, 11:42 PM CDT	Special Weather Statement	BIS	Ward	48 min
Jun 6, 11:59 PM CDT	Special Weather Statement	BIS	McLean, Sheridan, Wells	46 min
Jun 7, 12:11 AM CDT	Severe Thunderstorm Warning	BIS	McHenry, Ward	49 min
Jun 7, 12:39 AM CDT	Severe Thunderstorm Warning	BIS	Bottineau, McHenry, Pierce, Rolette	32 min
Jun 7, 5:23 PM CDT	Flash Flood Watch	BIS	Dickey, LaMoure, McIntosh	9 hr
Jun 7, 6:04 PM CDT	Severe Thunderstorm Warning	BIS	McIntosh	56 min
Jun 7, 6:28 PM CDT	Severe Thunderstorm Warning	BIS	Burleigh, Kidder	47 min
Jun 7, 6:48 PM CDT	Severe Thunderstorm Warning	BIS	Emmons, Kidder, Logan	57 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.