Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 61, NWS Bismarck, ND

June 10, 20214 counties in North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 10, 2021, 9:35 PM MDT for 4 counties in North Dakota. It was in force for 40 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 10, 2021, 9:35 PM MDT (03:35 UTC)
Expired
Jun 10, 2021, 10:15 PM MDT
In force
40 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Hail
1.25 in
Wind
70.0 mph

Counties Billings County, ND, Golden Valley County, ND, McKenzie County, ND, Williams County, ND

The radar

The Bismarck radar (KBIS), 216 km from the middle of the area, began a volume at 03:37 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

TimeReportWhereRemark
Jun 10, 10:15 PM MDTTSTM WND GST 597 Sw Alexander, ND

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.

IssuedProductOfficeLasted
Jun 10, 8:54 PM MDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 3.6 hours before the alert went out and 221 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-pSkew-T log-p diagram, Bismarck Municip, ND at 00:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1785 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Bismarck Municip, ND at 00:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1785 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
2484 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
210 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.8

Open this sounding in Storm Lab

The text

As transmitted.

955 
WUUS53 KBIS 110335
SVRBIS
NDC007-033-053-105-110415-
/O.NEW.KBIS.SV.W.0061.210611T0335Z-210611T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
1035 PM CDT Thu Jun 10 2021

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Northeastern Golden Valley County in southwestern North Dakota...
  Billings County in southwestern North Dakota...
  Western McKenzie County in northwestern North Dakota...
  South central Williams County in northwestern North Dakota...

* Until 1115 PM CDT/1015 PM MDT/.

* At 1034 PM CDT/934 PM MDT/, severe thunderstorms were located along
  a line extending from 8 miles east of East Fairview to 14 miles
  northeast of Trotters to 9 miles northwest of Medora, moving
  northeast at 40 mph.

  HAZARD...70 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect considerable 
           tree damage. Wind damage is also likely to mobile homes, 
           roofs, and outbuildings.

* Locations impacted include...
  Watford City, Alexander, Arnegard, South Fairfield, Theodore
  Roosevelt National Park North Unit, Grassy Butte, Fairfield, Sather
  Dam, Charbonneau and Rawson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4820 10350 4768 10310 4733 10310 4733 10304
      4698 10303 4698 10323 4695 10323 4693 10370
      4735 10383 4766 10405 4770 10404
TIME...MOT...LOC 0334Z 239DEG 33KT 4785 10387 4741 10364 4705 10360 

HAIL...1.25IN
WIND...70MPH
 
$$

SCHILD
2 follow-up statements
252 
WWUS53 KBIS 110348
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1048 PM CDT Thu Jun 10 2021

NDC033-110358-
/O.CAN.KBIS.SV.W.0061.000000T0000Z-210611T0415Z/
Golden Valley ND-
1048 PM CDT Thu Jun 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GOLDEN VALLEY
COUNTY IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT/200 AM
MDT/ for southwestern and northwestern North Dakota.

LAT...LON 4820 10350 4768 10310 4733 10310 4733 10305
      4722 10360 4774 10398
TIME...MOT...LOC 0348Z 238DEG 33KT 4790 10375 4746 10352 4729 10351 

$$

NDC007-053-105-110415-
/O.CON.KBIS.SV.W.0061.000000T0000Z-210611T0415Z/
Billings ND-McKenzie ND-Williams ND-
1048 PM CDT Thu Jun 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM
CDT/1015 PM MDT/ FOR NORTHWESTERN BILLINGS...WESTERN MCKENZIE AND
SOUTH CENTRAL WILLIAMS COUNTIES...

At 1048 PM CDT/948 PM MDT/, severe thunderstorms were located along a
line extending from 6 miles northwest of Alexander to 13 miles west
of Grassy Butte to 18 miles northwest of South Fairfield, moving
northeast at 40 mph.

HAZARD...70 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Watford City, Alexander, Arnegard, Theodore Roosevelt National Park
North Unit, Grassy Butte, Sather Dam, Charbonneau and Rawson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4820 10350 4768 10310 4733 10310 4733 10305
      4722 10360 4774 10398
TIME...MOT...LOC 0348Z 238DEG 33KT 4790 10375 4746 10352 4729 10351 

HAIL...1.25IN
WIND...70MPH
 
$$

SCHILD
165 
WWUS53 KBIS 110404
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1104 PM CDT Thu Jun 10 2021

NDC007-110414-
/O.CAN.KBIS.SV.W.0061.000000T0000Z-210611T0415Z/
Billings ND-
1104 PM CDT Thu Jun 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BILLINGS COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT/200 AM
MDT/ for northwestern North Dakota.

LAT...LON 4820 10350 4768 10310 4756 10310 4748 10351
      4786 10385
TIME...MOT...LOC 0404Z 222DEG 38KT 4808 10359 4783 10347 4750 10336 

$$

NDC053-105-110415-
/O.CON.KBIS.SV.W.0061.000000T0000Z-210611T0415Z/
McKenzie ND-Williams ND-
1104 PM CDT Thu Jun 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM
CDT/1015 PM MDT/ FOR CENTRAL MCKENZIE AND SOUTH CENTRAL WILLIAMS
COUNTIES...

At 1104 PM CDT/1004 PM MDT/, severe thunderstorms were located along
a line extending from 4 miles south of Williston to Arnegard to 8
miles southwest of Theodore Roosevelt National Park North Unit,
moving northeast at 45 mph.

HAZARD...70 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Watford City, Alexander, Arnegard, Theodore Roosevelt National Park
North Unit, Charbonneau and Rawson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4820 10350 4768 10310 4756 10310 4748 10351
      4786 10385
TIME...MOT...LOC 0404Z 222DEG 38KT 4808 10359 4783 10347 4750 10336 

HAIL...1.25IN
WIND...70MPH
 
$$

SCHILD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 6:10 PM MDTSevere Thunderstorm WarningBISMcKenzie, Williams65 min
Jun 10, 6:17 PM MDTSevere Thunderstorm WarningBISGolden Valley, McKenzie58 min
Jun 10, 6:30 PM MDTAreal Flood AdvisoryBISMcKenzie3 hr
Jun 10, 6:47 PM MDTSevere Thunderstorm WarningBISBurke, Divide, Williams43 min
Jun 10, 6:49 PM MDTTornado WarningBISMcKenzie26 min
Jun 10, 7:12 PM MDTTornado Warning Tornado observedConsiderable damage threatBISMcKenzie33 min
Jun 10, 7:23 PM MDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams52 min
Jun 10, 7:45 PM MDTSevere Thunderstorm WarningBISMcKenzie, Williams45 min
Jun 10, 8:28 PM MDTSevere Thunderstorm WarningBISDivide, McKenzie, Williams62 min
Jun 10, 8:49 PM MDTTornado WarningBISWilliams26 min
Jun 10, 8:53 PM MDTSevere Thunderstorm WarningBISBurke, Mountrail52 min
Jun 10, 9:23 PM MDTSevere Thunderstorm WarningBISMcKenzie, Williams52 min
Jun 10, 9:28 PM MDTFlash Flood WarningBISMcKenzie, Williams4 hr
Jun 10, 9:29 PM MDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams61 min
Jun 10, 9:40 PM MDTSpecial Weather StatementBISRenville50 min
Jun 10, 9:57 PM MDTSevere Thunderstorm WarningBISBurke, Renville, Ward39 min
Jun 10, 10:01 PM MDTSevere Thunderstorm WarningBISBillings, Golden Valley, Slope59 min
Jun 10, 10:14 PM MDTSevere Thunderstorm WarningBISDivide, McKenzie, Williams46 min
Jun 10, 10:29 PM MDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams61 min
Jun 10, 10:45 PM MDTSevere Thunderstorm WarningBISBurke, Divide, McKenzie, Mountrail, Williams45 min
Jun 10, 10:51 PM MDTSevere Thunderstorm WarningBISDunn, Grant, Hettinger, Mercer, Morton, Stark54 min
Jun 10, 11:21 PM MDTSevere Thunderstorm WarningBISGrant, Morton, Sioux54 min
Jun 10, 11:30 PM MDTSevere Thunderstorm WarningBISBottineau, Burke, McKenzie, McLean, Mountrail, Renville and 2 more60 min
Jun 10, 11:37 PM MDTSevere Thunderstorm WarningBISDunn, Mercer, Morton, Oliver, Stark38 min
Jun 10, 11:55 PM MDTSevere Thunderstorm WarningBISBurleigh, Morton, Oliver35 min
Jun 11, 12:11 AM MDTSevere Thunderstorm WarningBISEmmons, Grant, Morton, Sioux34 min
Jun 11, 12:26 AM MDTSevere Thunderstorm WarningBISBottineau, McHenry, McLean, Renville, Rolette, Sheridan and 1 more64 min
Jun 11, 12:27 AM MDTSevere Thunderstorm WarningBISBurleigh, McLean, Morton, Oliver, Sheridan33 min
Jun 11, 1:00 AM MDTSevere Thunderstorm WarningBISBurleigh, Emmons, Kidder45 min
Jun 11, 1:26 AM MDTSevere Thunderstorm WarningBISBottineau, McHenry, Pierce, Renville, Rolette, Ward64 min
Jun 11, 1:33 AM MDTSevere Thunderstorm WarningBISEmmons, Kidder, Logan, Stutsman57 min
Jun 11, 2:31 AM MDTSpecial Weather StatementBISDickey, Foster, LaMoure, Logan, McIntosh, Stutsman29 min
Jun 11, 2:43 AM MDTSevere Thunderstorm WarningBISDickey, Foster, LaMoure, Logan, McIntosh, Stutsman47 min
Jun 11, 4:19 AM MDTWind AdvisoryBISAdams, Billings, Bottineau, Bowman, Burke, Divide and 19 more16 hr

Nearby

Severe Thunderstorm Warnings in North Dakota, 2021Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.