Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 99, NWS Bismarck, ND

July 8, 2021Hettinger County, Stark County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 8, 2021, 8:01 PM MDT for Hettinger County, Stark County, North Dakota. It was in force for 59 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: Jul 8, 2021, 8:01 PM MDT (02:01 UTC)
Expired: Jul 8, 2021, 9:00 PM MDT
In force: 59 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hettinger County, ND, Stark County, ND

The radar

The Bismarck radar (KBIS), 143 km from the middle of the area, began a volume at 02:02 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
Jul 8, 8:18 PM MDT	HAIL 1	9 Ssw Lefor, ND	PUBLIC REPORT OF PEA, NICKEL, AND QUARTER SIZE HAIL. RELAYED VIA EMERGENCY MANAGEMENT. TIME ESTIMATED FROM RADAR.
Jul 8, 8:26 PM MDT	TSTM WND GST 70	1 N Regent, ND	60 TO 70 MPH WINDS ESTIMATED. TIME ESTIMATED FROM RADAR.
Jul 8, 8:44 PM MDT	TSTM WND GST 60	Mott, ND	60 MPH WINDS ESTIMATED IN TOWN. TIME ESTIMATED FROM RADAR.

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
Jul 8, 3:38 PM MDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 00:00Z, 2.0 hours before the alert went out and 147 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: 624 J/kg
Mixed-layer CIN: -153 J/kg
Mixed-layer LCL: 1380 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: 27 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.8

Open this sounding in Storm Lab

The text

As transmitted.

292 
WUUS53 KBIS 090201
SVRBIS
NDC041-089-090300-
/O.NEW.KBIS.SV.W.0099.210709T0201Z-210709T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
801 PM MDT Thu Jul 8 2021

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Hettinger County in southwestern North Dakota...
  Southeastern Stark County in southwestern North Dakota...

* Until 900 PM MDT.

* At 801 PM MDT, a severe thunderstorm was located 10 miles northeast
  of New England, or 16 miles south of Dickinson, moving southeast at
  40 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Mott, New England, Regent, Havelock, Schefield and Lefor. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4629 10292 4665 10293 4678 10271 4662 10205
      4646 10205 4628 10250
TIME...MOT...LOC 0201Z 293DEG 33KT 4665 10272 

HAIL...1.00IN
WIND...60MPH
 
$$

GALE

2 follow-up statements

026 
WWUS53 KBIS 090220
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
820 PM MDT Thu Jul 8 2021

NDC089-090229-
/O.CAN.KBIS.SV.W.0099.000000T0000Z-210709T0300Z/
Stark ND-
820 PM MDT Thu Jul 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN STARK COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 PM MDT for
south central and southwestern North Dakota.

LAT...LON 4629 10292 4663 10293 4663 10217 4662 10205
      4646 10205 4628 10250
TIME...MOT...LOC 0219Z 296DEG 36KT 4651 10251 

$$

NDC041-090300-
/O.CON.KBIS.SV.W.0099.000000T0000Z-210709T0300Z/
Hettinger ND-
820 PM MDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM MDT
FOR HETTINGER COUNTY...

At 819 PM MDT, a severe thunderstorm was located 6 miles north of
Regent, or 12 miles northwest of Mott, moving southeast at 40 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.

This severe storm will be near...
  Mott around 840 PM MDT.

Other locations impacted by this severe thunderstorm include
Havelock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 or closet or basement.

&&

LAT...LON 4629 10292 4663 10293 4663 10217 4662 10205
      4646 10205 4628 10250
TIME...MOT...LOC 0219Z 296DEG 36KT 4651 10251 

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

GALE

052 
WWUS53 KBIS 090236
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
836 PM MDT Thu Jul 8 2021

NDC041-090300-
/O.CON.KBIS.SV.W.0099.000000T0000Z-210709T0300Z/
Hettinger ND-
836 PM MDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM MDT
FOR HETTINGER COUNTY...

At 835 PM MDT, a severe thunderstorm was located near Mott, moving 
southeast at 40 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.

This severe thunderstorm will remain over mainly rural areas of
Hettinger County, including the following locations... Havelock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 or closet or basement.

&&

LAT...LON 4629 10290 4655 10281 4663 10217 4662 10205
      4646 10205 4628 10250
TIME...MOT...LOC 0235Z 296DEG 34KT 4640 10230 

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

GALE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 6:11 PM MDT	Severe Thunderstorm Warning	BIS	Billings, McKenzie	64 min
Jul 8, 6:14 PM MDT	Severe Thunderstorm Warning	BIS	Dunn, McKenzie, Mountrail	61 min
Jul 8, 6:29 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman	33 min
Jul 8, 6:44 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, Stark	61 min
Jul 8, 6:50 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, McKenzie	55 min
Jul 8, 6:58 PM MDT	Special Weather Statement	BIS	Burke, Mountrail, Renville, Ward	47 min
Jul 8, 8:42 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Grant, Hettinger	63 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 2021 Every 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.