Alert archive / Colorado / Mesoscale Discussions in 2026

Mesoscale Discussion 936

June 1, 20264 states

The Storm Prediction Center issued this mesoscale discussion at Jun 1, 2026, 11:51 AM MDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 1, 2026, 11:51 AM MDT (17:51 UTC)
Expired
Jun 1, 2026, 2:15 PM MDT
In force
2 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch likely
Chance of a watch
80%
All 32 counties

Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, El Paso County, CO, Elbert County, CO, Jefferson County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Banner County, NE, Box Butte County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Garden County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Sioux County, NE, Fall River County, SD, Goshen County, WY, Laramie County, WY, Niobrara County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 71 km from the middle of the area, began a volume at 17:49 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 watches that followed

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

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 1, 12:52 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Boulder, Broomfield, Cheyenne and 18 more7 hr
Jun 1, 3:38 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Elbert, Kit Carson, Lincoln, Logan and 6 more67 min
May 31, 6:26 PM MDTMesoscale DiscussionSPCBurt, Butler, Cass, Cedar, Colfax, Cuming and 10 more2 hr
May 31, 8:15 PM MDTMesoscale DiscussionSPCCedar, Dixon2 hr
May 31, 8:30 PM MDTSevere Thunderstorm WatchSPCBurt, Butler, Cass, Colfax, Cuming, Dodge and 7 more7 hr
May 31, 8:38 PM MDTSevere Thunderstorm WatchSPCDakota, Dixon4 hr
May 31, 9:46 PM MDTMesoscale DiscussionSPCBurt, Butler, Cass, Colfax, Cuming, Dakota and 10 more119 min
Jun 1, 3:37 PM MDTSevere Thunderstorm WatchSPCDundy, Hitchcock, Red Willow7 hr

Nearby

Mesoscale Discussions in Colorado, 2026Mesoscale Discussions in Nebraska, 2026Mesoscale Discussions in Wyoming, 2026Every mesoscale discussion in 2026

Sources

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