Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Bismarck, ND

June 6, 20214 counties in North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 6, 2021, 12:13 AM CDT for 4 counties in North Dakota. It was in force for 62 min. 3 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 6, 2021, 12:13 AM CDT (05:13 UTC)
Expired
Jun 6, 2021, 1:15 AM CDT
In force
62 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Burleigh County, ND, McLean County, ND, Mercer County, ND, Oliver County, ND

The radar

The Bismarck radar (KBIS), 79 km from the middle of the area, began a volume at 05:14 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 6, 12:19 AM CDTTSTM WND GST 681 Wnw Garrison, ND
Jun 6, 12:26 AM CDTTSTM WND GST 70Beulah, ND
Jun 6, 12:50 AM CDTTSTM WND GST 60Stanton, NDMESONET STATION TS680 STANTON.

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 5, 10:21 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 5.2 hours before the alert went out and 81 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 2021-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1639 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 2021-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.19395878Sfc1 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
1639 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
3032 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.1

Open this sounding in Storm Lab

The text

As transmitted.

061 
WUUS53 KBIS 060513
SVRBIS
NDC015-055-057-065-060615-
/O.NEW.KBIS.SV.W.0005.210606T0513Z-210606T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
1213 AM CDT Sun Jun 6 2021

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  McLean County in south central North Dakota...
  Northwestern Burleigh County in south central North Dakota...
  Oliver County in south central North Dakota...
  Central Mercer County in south central North Dakota...

* Until 115 AM CDT.

* At 1212 AM CDT, severe thunderstorms were located along a line
  extending from near Max to 10 miles southwest of Hannover, moving
  east at 45 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Surface observations.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Beulah, Garrison, Washburn, Hazen, Underwood, Wilton, Turtle Lake,
  Center, Stanton, Max, Riverdale, Pick City, Mercer, Coleharbor,
  Butte, Benedict, Beulah Bay Recreation Area, Hazen Bay Recreation
  Area, Lake Sakakawea State Park and Hannover.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4698 10192 4785 10168 4785 10058 4768 10059
      4767 10067 4698 10069
TIME...MOT...LOC 0512Z 271DEG 37KT 4784 10135 4698 10156 

HAIL...<.75IN
WIND...70MPH
 
$$

HOLLAN
2 follow-up statements
616 
WWUS53 KBIS 060533
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1233 AM CDT Sun Jun 6 2021

NDC015-055-057-065-060615-
/O.CON.KBIS.SV.W.0005.000000T0000Z-210606T0615Z/
McLean ND-Burleigh ND-Oliver ND-Mercer ND-
1233 AM CDT Sun Jun 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR MCLEAN...NORTHWESTERN BURLEIGH...OLIVER AND CENTRAL MERCER
COUNTIES...

At 1232 AM CDT, severe thunderstorms were located along a line
extending from Benedict to near Underwood to 9 miles south of Center,
moving east at 45 mph.

HAZARD...70 mph wind gusts.

SOURCE...Public.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
  Beulah, Garrison, Benedict, Washburn, Mercer, Turtle Lake, 
  Wilton, and Butte.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4698 10192 4785 10168 4785 10058 4768 10059
      4767 10067 4698 10069
TIME...MOT...LOC 0532Z 269DEG 40KT 4784 10108 4741 10113 4698 10129 

HAIL...<.75IN
WIND...70MPH
 
$$

HOLLAN
220 
WWUS53 KBIS 060553
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1253 AM CDT Sun Jun 6 2021

NDC015-055-057-065-060615-
/O.CON.KBIS.SV.W.0005.000000T0000Z-210606T0615Z/
McLean ND-Burleigh ND-Oliver ND-Mercer ND-
1253 AM CDT Sun Jun 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR MCLEAN...NORTHWESTERN BURLEIGH...OLIVER AND NORTHEASTERN MERCER
COUNTIES...

At 1252 AM CDT, severe thunderstorms were located along a line
extending from near Butte to 7 miles southwest of Mercer to near Lake
Harmon, moving east at 45 mph.

HAZARD...70 mph wind gusts.

SOURCE...Public.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
  Washburn, Stanton, Center, Underwood, Wilton, Turtle Lake, Mercer, 
  and Butte.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Wind damage with these storms will occur before any rain or
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4698 10159 4785 10141 4785 10058 4768 10059
      4767 10067 4698 10069
TIME...MOT...LOC 0552Z 270DEG 39KT 4783 10075 4740 10080 4697 10097 

HAIL...<.75IN
WIND...70MPH
 
$$

HOLLAN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 9:25 PM CDTSpecial Weather StatementBISBillings, Bowman, Golden Valley, McKenzie, Slope, Williams50 min
Jun 5, 9:36 PM CDTSevere Thunderstorm WarningBISBowman, Golden Valley, Slope39 min
Jun 5, 10:16 PM CDTSpecial Weather StatementBISBillings, Bowman, Golden Valley, McKenzie, Slope, Williams44 min
Jun 5, 10:58 PM CDTSpecial Weather StatementBISBillings, Dunn, Mountrail, Stark47 min
Jun 5, 11:08 PM CDTSpecial Weather StatementBISSlope37 min
Jun 5, 11:11 PM CDTSevere Thunderstorm WarningBISBillings, Dunn, Stark37 min
Jun 5, 11:41 PM CDTSpecial Weather StatementBISBowman34 min
Jun 5, 11:45 PM CDTSpecial Weather StatementBISMcLean, Mercer, Morton, Oliver45 min
Jun 5, 11:50 PM CDTSpecial Weather StatementBISStark40 min
Jun 5, 11:59 PM CDTSevere Thunderstorm WarningBISDunn, Stark46 min
Jun 6, 12:10 AM CDTSpecial Weather StatementBISSlope35 min
Jun 6, 12:35 AM CDTSpecial Weather StatementBISSlope25 min
Jun 6, 12:39 AM CDTSevere Thunderstorm WarningBISDunn, Mercer, Morton, Stark51 min
Jun 6, 12:43 AM CDTSevere Thunderstorm WarningBISBottineau, McHenry, Renville, Ward47 min
Jun 6, 1:01 AM CDTSpecial Weather StatementBISHettinger29 min
Jun 6, 1:27 AM CDTSpecial Weather StatementBISStark33 min
Jun 6, 1:35 AM CDTSpecial Weather StatementBISMcLean, Mercer, Sheridan40 min
Jun 6, 1:52 AM CDTSevere Thunderstorm WarningBISMcHenry, Pierce, Sheridan, Wells38 min
Jun 6, 2:02 AM CDTSpecial Weather StatementBISOliver28 min
Jun 6, 3:09 AM CDTRed Flag WarningBISBillings, Bottineau, Burke, Burleigh, Divide, Dunn and 19 more18 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.