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Severe Thunderstorm Warning 0160
Issued by the Bismarck Forecast Office

Action Issued Starts Expiration
New 2025-07-25 18:39:07 2025-07-25 18:38:00 2025-07-25 19:45:00
Continued 2025-07-25 18:46:37 2025-07-25 19:45:00
Continued 2025-07-25 19:06:38 2025-07-25 19:45:00
Continued 2025-07-25 19:18:38 2025-07-25 19:45:00
Continued 2025-07-25 19:34:39 2025-07-25 19:45:00


Action: New
Issued At: 2025-07-25 18:39:07

452 
WUUS53 KBIS 252338
SVRBIS
NDC053-105-260045-
/O.NEW.KBIS.SV.W.0160.250725T2338Z-250726T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Bismarck ND
638 PM CDT Fri Jul 25 2025

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 745 PM CDT.

* At 638 PM CDT, a severe thunderstorm was located near Fort Union
  Trading Post, or 19 miles north of Sidney, moving east at 20 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...
  Williston, Fort Union Trading Post, Trenton, and Fort Buford State
  Historical Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4814 10405 4828 10363 4817 10359 4787 10351
      4789 10404
TIME...MOT...LOC 2338Z 262DEG 16KT 4800 10412 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ANGLIN


Action: Continued
Issued At: 2025-07-25 18:46:37

805 
WWUS53 KBIS 252346
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
646 PM CDT Fri Jul 25 2025

NDC053-105-260045-
/O.CON.KBIS.SV.W.0160.000000T0000Z-250726T0045Z/
McKenzie ND-Williams ND-
646 PM CDT Fri Jul 25 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN MCKENZIE AND SOUTHWESTERN WILLIAMS COUNTIES...

At 645 PM CDT, a severe thunderstorm was located over Fort Union
Trading Post, or 20 miles north of Sidney, moving east at 20 mph.

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

SOURCE...Trained weather spotters report quarter to ping pong ball 
         size hail in the city of Williston.

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, Fort Union Trading Post, Trenton, and Fort Buford State
Historical Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4814 10405 4828 10363 4817 10359 4787 10351
      4789 10404
TIME...MOT...LOC 2345Z 262DEG 16KT 4800 10407 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ANGLIN


Action: Continued
Issued At: 2025-07-25 19:06:38

259 
WWUS53 KBIS 260006
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
706 PM CDT Fri Jul 25 2025

NDC053-105-260045-
/O.CON.KBIS.SV.W.0160.000000T0000Z-250726T0045Z/
McKenzie ND-Williams ND-
706 PM CDT Fri Jul 25 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN MCKENZIE AND SOUTHWESTERN WILLIAMS COUNTIES...

At 705 PM CDT, a severe thunderstorm was located 5 miles east of Fort
Union Trading Post, or 17 miles southwest of Williston, moving east
at 20 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...
Williston, Fort Union Trading Post, Trenton, and Fort Buford State
Historical Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4814 10405 4828 10363 4817 10359 4787 10351
      4789 10404
TIME...MOT...LOC 0005Z 262DEG 16KT 4801 10393 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ANGLIN


Action: Continued
Issued At: 2025-07-25 19:18:38

670 
WWUS53 KBIS 260018
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
718 PM CDT Fri Jul 25 2025

NDC053-105-260045-
/O.CON.KBIS.SV.W.0160.000000T0000Z-250726T0045Z/
McKenzie ND-Williams ND-
718 PM CDT Fri Jul 25 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN MCKENZIE AND SOUTHWESTERN WILLIAMS COUNTIES...

At 717 PM CDT, a severe thunderstorm was located 9 miles east of Fort
Union Trading Post, or 14 miles southwest of Williston, moving east
at 20 mph.

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

SOURCE...Trained weather spotters hail to the size of quarters in 
         the city of Williston.

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

Locations impacted include...
Williston, Fort Union Trading Post, Trenton, and Fort Buford State
Historical Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4814 10405 4828 10363 4817 10359 4787 10351
      4789 10404
TIME...MOT...LOC 0017Z 262DEG 16KT 4802 10385 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ANGLIN


Action: Continued
Issued At: 2025-07-25 19:34:39

119 
WWUS53 KBIS 260034
SVSBIS

Severe Weather Statement
National Weather Service Bismarck ND
734 PM CDT Fri Jul 25 2025

NDC053-105-260045-
/O.CON.KBIS.SV.W.0160.000000T0000Z-250726T0045Z/
McKenzie ND-Williams ND-
734 PM CDT Fri Jul 25 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN MCKENZIE AND SOUTHWESTERN WILLIAMS COUNTIES...

At 734 PM CDT, a severe thunderstorm was located 10 miles southwest
of Williston, moving east at 20 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...
Williston, Fort Union Trading Post, Trenton, and Fort Buford State
Historical Site.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 4814 10405 4828 10363 4817 10359 4787 10351
      4789 10404
TIME...MOT...LOC 0034Z 262DEG 16KT 4803 10374 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

ANGLIN



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