Alert archive / North Dakota / Mesoscale Discussions in 2025

Mesoscale Discussion 1739

July 20, 20254 states

The Storm Prediction Center issued this mesoscale discussion at Jul 20, 2025, 3:45 PM MDT for 4 states. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued: Jul 20, 2025, 3:45 PM MDT (21:45 UTC)
Expired: Jul 20, 2025, 5:15 PM MDT
In force: 90 min
Issued by: the Storm Prediction Center
Concerning: Severe potential...watch possible
Chance of a watch: 60%

All 24 counties

Carter County, MT, Custer County, MT, Dawson County, MT, Fallon County, MT, Powder River County, MT, Prairie County, MT, Rosebud County, MT, Treasure County, MT, Wibaux County, MT, Adams County, ND, Billings County, ND, Bowman County, ND, Dunn County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, McKenzie County, ND, Mercer County, ND, Slope County, ND, Stark County, ND, Butte County, SD, Harding County, SD, Perkins County, SD, Crook County, WY

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 531Jul 20, 4:10 PM MDT

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 19, 8:11 PM MDT	Mesoscale Discussion	SPC	Carter, Custer, Daniels, Dawson, Fallon, McCone and 6 more	64 min
Jul 20, 4:09 PM MDT	Severe Thunderstorm Watch	SPC	Carter, Custer, Dawson, Fallon, Garfield, McCone and 6 more	8 hr
Jul 19, 10:55 PM MDT	Mesoscale Discussion	SPC	Bennett, Jackson, Oglala Lakota	65 min
Jul 20, 1:41 PM MDT	Mesoscale Discussion	SPC	Bennett, Haakon, Jackson, Jones, Mellette, Todd	3 hr
Jul 20, 4:24 PM MDT	Tornado Watch	SPC	Bennett, Jackson, Jones, Lyman, Mellette, Todd and 1 more	8 hr

Nearby

Mesoscale Discussions in North Dakota, 2025 Mesoscale Discussions in Montana, 2025 Mesoscale Discussions in South Dakota, 2025 Every mesoscale discussion in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.