Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 64, NWS Bismarck, ND

June 10, 2021Divide County, McKenzie County, Williams County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 10, 2021, 11:14 PM CDT for Divide County, McKenzie County, Williams County, North Dakota. It was in force for 46 min. 7 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 10, 2021, 11:14 PM CDT (04:14 UTC)
Expired
Jun 11, 2021, 12:00 AM CDT
In force
46 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Hail
1.5 in
Wind
70.0 mph

Counties Divide County, ND, McKenzie County, ND, Williams County, ND

The radar

The Minot AFB radar (KMBX), 197 km from the middle of the area, began a volume at 04:15 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, 11:20 PM CDTTSTM WND DMGZahl, NDDELAYED REPORT. TIME ESTIMATED FROM RADAR. PICTURE FROM SOCIAL MEDIA OF A LARGE DOWNED TREE.
Jun 10, 11:20 PM CDTTSTM WND GST 622 S Alamo, ND
Jun 10, 11:27 PM CDTHAIL 1.5Williston, NDONGOING.
Jun 10, 11:34 PM CDTTSTM WND GST 939 Nw Williston, NDASOS STATION KXWA WILLISTON AIRPORT.
Jun 10, 11:39 PM CDTTSTM WND GST 614 S Hanks, ND
Jun 11, 12:05 AM CDTNON-TSTM WND GST 752 S Alamo, ND
Jun 11, 12:10 AM CDTNON-TSTM WND GST 772 S Alamo, 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, 9:54 PM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 4.2 hours before the alert went out and 229 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, Glasgow Intl Airport, MT at 00:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1762 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, Glasgow Intl Airport, MT at 00:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
1762 J/kg
Mixed-layer CIN
-194 J/kg
Mixed-layer LCL
1872 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
262 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.5

Open this sounding in Storm Lab

The text

As transmitted.

944 
WUUS53 KBIS 110414
SVRBIS
NDC023-053-105-110500-
/O.NEW.KBIS.SV.W.0064.210611T0414Z-210611T0500Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
1114 PM CDT Thu Jun 10 2021

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Northeastern McKenzie County in northwestern North Dakota...
  Williams County in northwestern North Dakota...
  Central Divide County in northwestern North Dakota...

* Until midnight CDT.

* At 1113 PM CDT, severe thunderstorms were located along a line
  extending from 6 miles northeast of Grenora to 9 miles northwest of
  Epping to 6 miles northwest of Theodore Roosevelt National Park
  North Unit, moving northeast at 45 mph.

  HAZARD...70 mph wind gusts and ping pong ball size hail.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Williston, Watford City, Tioga, Ray, Grenora, Alexander, Arnegard,
  Wildrose, Epping, Alamo, Fortuna, Writing Rock State Historical
  Site, Bonetrail, Wheelock, Hamlet, Keene, Ambrose, White Tail Bay
  Recreation Area, Corinth and Blacktail Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4900 10344 4870 10307 4787 10271 4756 10350
      4818 10379 4854 10405 4862 10405 4900 10374
TIME...MOT...LOC 0413Z 219DEG 37KT 4865 10381 4835 10354 4768 10333 

HAIL...1.50IN
WIND...70MPH
 
$$

SCHILD
1 follow-up statement
813 
WWUS53 KBIS 110427
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
1127 PM CDT Thu Jun 10 2021

NDC023-053-105-110500-
/O.CON.KBIS.SV.W.0064.000000T0000Z-210611T0500Z/
McKenzie ND-Williams ND-Divide ND-
1127 PM CDT Thu Jun 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR NORTHEASTERN MCKENZIE...WILLIAMS AND CENTRAL DIVIDE COUNTIES...

At 1126 PM CDT, severe thunderstorms were located along a line
extending from 11 miles southeast of Fortuna to 7 miles southeast of
Alamo to 7 miles east of Watford City, moving northeast at 45 mph.

These are very dangerous storms.

HAZARD...80 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Williston, Watford City, Tioga, Ray, Grenora, Wildrose, Epping,
Alamo, Fortuna, Writing Rock State Historical Site, Bonetrail,
Wheelock, Hamlet, Keene, Ambrose, White Tail Bay Recreation Area,
Corinth, Blacktail Lake, Zahl and Lewis And Clark State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is an EXTREMELY DANGEROUS SITUATION. These storms are producing 
widespread wind damage. SEEK SHELTER NOW inside a sturdy structure 
and stay away from windows.

&&

LAT...LON 4900 10344 4870 10307 4787 10271 4768 10327
      4839 10381 4854 10405 4862 10405 4900 10374
TIME...MOT...LOC 0426Z 218DEG 41KT 4880 10359 4850 10336 4778 10313 

HAIL...1.50IN
WIND...80MPH
 
$$

SCHILD

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 7:10 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams65 min
Jun 10, 7:17 PM CDTSevere Thunderstorm WarningBISGolden Valley, McKenzie58 min
Jun 10, 7:30 PM CDTAreal Flood AdvisoryBISMcKenzie3 hr
Jun 10, 7:47 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Williams43 min
Jun 10, 7:49 PM CDTTornado WarningBISMcKenzie26 min
Jun 10, 8:12 PM CDTTornado Warning Tornado observedConsiderable damage threatBISMcKenzie33 min
Jun 10, 8:23 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams52 min
Jun 10, 8:45 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams45 min
Jun 10, 9:28 PM CDTSevere Thunderstorm WarningBISDivide, McKenzie, Williams62 min
Jun 10, 9:49 PM CDTTornado WarningBISWilliams26 min
Jun 10, 9:53 PM CDTSevere Thunderstorm WarningBISBurke, Mountrail52 min
Jun 10, 10:23 PM CDTSevere Thunderstorm WarningBISMcKenzie, Williams52 min
Jun 10, 10:28 PM CDTFlash Flood WarningBISMcKenzie, Williams4 hr
Jun 10, 10:29 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams61 min
Jun 10, 10:35 PM CDTSevere Thunderstorm WarningBISBillings, Golden Valley, McKenzie, Williams40 min
Jun 10, 10:40 PM CDTSpecial Weather StatementBISRenville50 min
Jun 10, 10:57 PM CDTSevere Thunderstorm WarningBISBurke, Renville, Ward39 min
Jun 10, 11:01 PM CDTSevere Thunderstorm WarningBISBillings, Golden Valley, Slope59 min
Jun 10, 11:29 PM CDTSevere Thunderstorm WarningBISBurke, Divide, Mountrail, Williams61 min
Jun 10, 11:45 PM CDTSevere Thunderstorm WarningBISBurke, Divide, McKenzie, Mountrail, Williams45 min
Jun 10, 11:51 PM CDTSevere Thunderstorm WarningBISDunn, Grant, Hettinger, Mercer, Morton, Stark54 min
Jun 11, 12:21 AM CDTSevere Thunderstorm WarningBISGrant, Morton, Sioux54 min
Jun 11, 12:30 AM CDTSevere Thunderstorm WarningBISBottineau, Burke, McKenzie, McLean, Mountrail, Renville and 2 more60 min
Jun 11, 12:37 AM CDTSevere Thunderstorm WarningBISDunn, Mercer, Morton, Oliver, Stark38 min
Jun 11, 12:55 AM CDTSevere Thunderstorm WarningBISBurleigh, Morton, Oliver35 min
Jun 11, 1:11 AM CDTSevere Thunderstorm WarningBISEmmons, Grant, Morton, Sioux34 min
Jun 11, 1:26 AM CDTSevere Thunderstorm WarningBISBottineau, McHenry, McLean, Renville, Rolette, Sheridan and 1 more64 min
Jun 11, 1:27 AM CDTSevere Thunderstorm WarningBISBurleigh, McLean, Morton, Oliver, Sheridan33 min
Jun 11, 2:00 AM CDTSevere Thunderstorm WarningBISBurleigh, Emmons, Kidder45 min
Jun 11, 2:26 AM CDTSevere Thunderstorm WarningBISBottineau, McHenry, Pierce, Renville, Rolette, Ward64 min
Jun 11, 2:33 AM CDTSevere Thunderstorm WarningBISEmmons, Kidder, Logan, Stutsman57 min
Jun 11, 3:31 AM CDTSpecial Weather StatementBISDickey, Foster, LaMoure, Logan, McIntosh, Stutsman29 min
Jun 11, 3:43 AM CDTSevere Thunderstorm WarningBISDickey, Foster, LaMoure, Logan, McIntosh, Stutsman47 min
Jun 11, 5:19 AM CDTWind 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.