Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 56, NWS Bismarck, ND

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

NWS Bismarck, ND issued this severe thunderstorm warning at Jun 10, 2021, 8:45 PM CDT for McKenzie County, Williams County, North Dakota. It was in force for 45 min. 4 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, 8:45 PM CDT (01:45 UTC)
Expired
Jun 10, 2021, 9:30 PM CDT
In force
45 min
Issued by
NWS Bismarck, ND
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties McKenzie County, ND, Williams County, ND

The radar

The Glasgow radar (KGGW), 209 km from the middle of the area, began a volume at 01:47 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, 8:45 PM CDTHAIL 1.2511 Wsw Sather Dam, NDONGOING.
Jun 10, 9:10 PM CDTHAIL 1.754 N Williston, ND10 MINUTE DURATION.
Jun 10, 9:28 PM CDTTSTM WND DMG6 N Trenton, NDPART OF A ROOF BLOWN OFF A BUILDING AND ANOTHER SMALL OUT BUILDING BLOWN OVER. RELAYED VIA PICTURES ON SOCIAL MEDIA. TIME ESTIMATED FROM RADAR.
Jun 10, 9:36 PM CDTHAIL 1.5Williston, 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, 3:30 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Glasgow Intl Airport, MT (KGGW), launched 00:00Z, 1.8 hours before the alert went out and 208 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.

706 
WUUS53 KBIS 110145
SVRBIS
NDC053-105-110230-
/O.NEW.KBIS.SV.W.0056.210611T0145Z-210611T0230Z/

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

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Northwestern McKenzie County in northwestern North Dakota...
  Southwestern Williams County in northwestern North Dakota...

* Until 930 PM CDT/830 PM MDT/.

* At 845 PM CDT/745 PM MDT/, a severe thunderstorm was located 8
  miles southwest of Williston, moving north at 20 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Williston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT/900 PM MDT/ for
northwestern North Dakota.

A Tornado Watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.

This thunderstorm is capable of producing all types of severe weather
including extremely large hail, destructive straight line winds and
tornadoes. Move quickly to a safe shelter such as an interior room, a
bathroom, closet or basement.

&&

LAT...LON 4788 10405 4830 10384 4816 10322 4737 10404
TIME...MOT...LOC 0145Z 200DEG 19KT 4805 10373 

HAIL...1.50IN
WIND...60MPH
 
$$

SCHILD
2 follow-up statements
862 
WWUS53 KBIS 110150
SVSBIS

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

NDC053-105-110230-
/O.CON.KBIS.SV.W.0056.000000T0000Z-210611T0230Z/
McKenzie ND-Williams ND-
850 PM CDT Thu Jun 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM
CDT/830 PM MDT/ FOR NORTHWESTERN MCKENZIE AND SOUTHWESTERN WILLIAMS
COUNTIES...

At 850 PM CDT/750 PM MDT/, a severe thunderstorm was located 6 miles
southwest of Williston, moving north at 20 mph.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Williston, Fairview, Alexander, East Fairview, Trenton, Sather Dam,
Cartwright, Fort Buford State Historical Site and Charbonneau.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT/900 PM MDT/ for
northwestern North Dakota.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4788 10405 4830 10384 4816 10322 4737 10404
TIME...MOT...LOC 0150Z 200DEG 19KT 4808 10372 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

SCHILD
349 
WWUS53 KBIS 110211
SVSBIS

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

NDC053-105-110230-
/O.CON.KBIS.SV.W.0056.000000T0000Z-210611T0230Z/
McKenzie ND-Williams ND-
911 PM CDT Thu Jun 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM
CDT/830 PM MDT/ FOR NORTHWESTERN MCKENZIE AND SOUTHWESTERN WILLIAMS
COUNTIES...

At 910 PM CDT/810 PM MDT/, a severe thunderstorm was located over 
Williston, moving north at 20 mph. Additional storms stretch off to 
the south-southwest over the Trenton and Cartwright areas.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Williston, Fairview, Alexander, East Fairview, Trenton, Sather Dam,
Cartwright, Fort Buford State Historical Site and Charbonneau.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CDT/900 PM MDT/ for
northwestern North Dakota.

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

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

&&

LAT...LON 4788 10405 4830 10384 4816 10322 4737 10404
TIME...MOT...LOC 0210Z 200DEG 19KT 4818 10367 

TORNADO...POSSIBLE
HAIL...1.50IN
WIND...60MPH
 
$$

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, 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, 11:14 PM CDTSevere Thunderstorm WarningBISDivide, McKenzie, Williams46 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.