Alert archive / North Dakota / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 87, NWS Bismarck, ND

July 8, 2021Adams County, Bowman County, North Dakota

NWS Bismarck, ND issued this severe thunderstorm warning at Jul 8, 2021, 4:51 PM MDT for Adams County, Bowman County, North Dakota. It was in force for 54 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 8, 2021, 4:51 PM MDT (22:51 UTC)
Expired: Jul 8, 2021, 5:45 PM MDT
In force: 54 min
Issued by: NWS Bismarck, ND
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Adams County, ND, Bowman County, ND

The radar

The Bismarck radar (KBIS), 207 km from the middle of the area, began a volume at 22:52 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.

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 12:00Z, 10.9 hours before the alert went out and 211 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: 10 J/kg
Mixed-layer CIN: -299 J/kg
Mixed-layer LCL: 873 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 138 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

625 
WUUS53 KBIS 082251
SVRBIS
NDC001-011-082345-
/O.NEW.KBIS.SV.W.0087.210708T2251Z-210708T2345Z/

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

The National Weather Service in Bismarck has issued a

* Severe Thunderstorm Warning for...
  Eastern Bowman County in southwestern North Dakota...
  Western Adams County in southwestern North Dakota...

* Until 545 PM MDT.

* At 450 PM MDT, a severe thunderstorm was located near Bowman,
  moving east at 30 mph.

  HAZARD...Golf 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...
  Scranton and Reeder.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4594 10359 4628 10360 4628 10278 4595 10277
TIME...MOT...LOC 2250Z 270DEG 24KT 4614 10340 

HAIL...1.75IN
WIND...60MPH
 
$$

EDWARDS

2 follow-up statements

271 
WWUS53 KBIS 082308
SVSBIS

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

NDC001-011-082345-
/O.CON.KBIS.SV.W.0087.000000T0000Z-210708T2345Z/
Bowman ND-Adams ND-
508 PM MDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR EASTERN BOWMAN AND WESTERN ADAMS COUNTIES...

At 508 PM MDT, a severe thunderstorm was located 6 miles southwest of
Scranton, or 10 miles southeast of Bowman, moving east at 30 mph.

HAZARD...Golf 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...
Bowman, Scranton, Reeder, Bucyrus, Gascoyne, Bowman Haley Dam and
Buffalo Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4594 10351 4628 10352 4628 10278 4611 10277
      4595 10278
TIME...MOT...LOC 2308Z 269DEG 27KT 4608 10323 

HAIL...1.75IN
WIND...60MPH
 
$$

EDWARDS

539 
WWUS53 KBIS 082323
SVSBIS

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

NDC001-011-082345-
/O.CON.KBIS.SV.W.0087.000000T0000Z-210708T2345Z/
Bowman ND-Adams ND-
523 PM MDT Thu Jul 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MDT
FOR EASTERN BOWMAN AND WESTERN ADAMS COUNTIES...

At 523 PM MDT, a severe thunderstorm was located 8 miles southwest of
Reeder, or 18 miles southeast of Bowman, moving east at 30 mph.

HAZARD...Golf 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...
Scranton, Reeder, Bucyrus, Gascoyne, Bowman Haley Dam and Buffalo 
Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4594 10339 4624 10352 4628 10352 4628 10278
      4611 10277 4595 10278
TIME...MOT...LOC 2323Z 269DEG 26KT 4603 10308 

HAIL...1.75IN
WIND...60MPH
 
$$

EDWARDS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 8, 5:43 AM MDT	Special Weather Statement	BIS	Divide	47 min
Jul 8, 6:26 AM MDT	Special Weather Statement	BIS	Divide	49 min
Jul 8, 7:16 AM MDT	Special Weather Statement	BIS	Burke	29 min
Jul 8, 3:34 PM MDT	Severe Thunderstorm Warning	BIS	Divide	41 min
Jul 8, 4:00 PM MDT	Severe Thunderstorm Warning	BIS	Divide, Williams	60 min
Jul 8, 4:36 PM MDT	Severe Thunderstorm Warning	BIS	Williams	54 min
Jul 8, 4:38 PM MDT	Severe Thunderstorm Warning	BIS	Slope	52 min
Jul 8, 4:53 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	37 min
Jul 8, 5:28 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie, Williams	47 min
Jul 8, 5:28 PM MDT	Severe Thunderstorm Warning	BIS	Adams, Bowman, Slope	62 min
Jul 8, 5:34 PM MDT	Special Weather Statement	BIS	Stark	11 min
Jul 8, 5:38 PM MDT	Severe Thunderstorm Warning	BIS	McKenzie	37 min
Jul 8, 5:51 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Stark	54 min
Jul 8, 5:52 PM MDT	Severe Thunderstorm Warning	BIS	Billings, Dunn, McKenzie	68 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.