Alert archive / Colorado / Red Flag Warnings in 2026

Red Flag Warning 42, NWS Denver/Boulder, CO

June 8, 202613 counties in Colorado

NWS Denver/Boulder, CO issued this red flag warning at Jun 8, 2026, 1:03 PM MDT for 13 counties in Colorado. It took effect at Jun 9, 2026, 12:00 PM MDT. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 8, 2026, 1:03 PM MDT (19:03 UTC)
In effect from: Jun 9, 2026, 12:00 PM MDT
Expired: Jun 9, 2026, 9:00 PM MDT
In force: 9 hr
Issued by: NWS Denver/Boulder, CO

Counties Adams County, CO, Arapahoe County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 61 km from the middle of the area, began a volume at 19:02 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 forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Denver/Boulder, CO wrote its last area forecast discussion before this red flag warning went out at Jun 8, 12:45 PM MDT, 18 minutes earlier.

Area forecast discussion, Jun 8, 12:45 PM MDT, 18 minutes before

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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 7, 6:38 PM MDT	Special Weather Statement	BOU	Lincoln	52 min
Jun 7, 6:51 PM MDT	Special Weather Statement	BOU	Morgan	39 min
Jun 7, 7:39 PM MDT	Special Weather Statement	BOU	Logan	36 min
Jun 8, 3:14 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Denver, Jefferson	46 min
Jun 8, 3:16 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Douglas, Elbert	44 min
Jun 8, 3:19 PM MDT	Severe Thunderstorm Warning	BOU	Elbert, Lincoln	41 min
Jun 8, 3:29 PM MDT	Severe Thunderstorm Warning	BOU	Clear Creek, Jefferson	28 min
Jun 8, 3:37 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver	23 min
Jun 8, 3:51 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Denver	39 min
Jun 8, 3:56 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Lincoln	49 min
Jun 8, 3:57 PM MDT	Severe Thunderstorm Warning	BOU	Arapahoe, Douglas, Elbert	48 min
Jun 8, 4:01 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Broomfield, Weld	32 min
Jun 8, 4:18 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	25 min
Jun 8, 4:19 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Denver, Morgan, Weld	41 min
Jun 8, 4:20 PM MDT	Areal Flood Advisory	BOU	Adams, Denver	115 min
Jun 8, 4:29 PM MDT	Tornado Warning	BOU	Elbert	46 min
Jun 8, 4:32 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Douglas, Elbert	3 hr
Jun 8, 4:42 PM MDT	Severe Thunderstorm Warning	BOU	Lincoln	18 min
Jun 8, 4:48 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Elbert	42 min
Jun 8, 4:52 PM MDT	Tornado Warning	BOU	Adams	38 min
Jun 8, 4:59 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Morgan, Weld	30 min
Jun 8, 5:11 PM MDT	Tornado Warning	BOU	Elbert	49 min
Jun 8, 5:14 PM MDT	Severe Thunderstorm Warning Destructive damage threat	BOU	Elbert	46 min
Jun 8, 5:28 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Morgan	32 min
Jun 8, 5:55 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Elbert	3 hr
Jun 8, 5:55 PM MDT	Severe Thunderstorm Warning Considerable damage threat	BOU	Elbert, Lincoln, Washington	50 min
Jun 8, 5:57 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Washington	30 min
Jun 8, 5:58 PM MDT	Tornado Warning	BOU	Elbert, Lincoln	35 min

Nearby

Red Flag Warnings in Colorado, 2026 Every red flag warning 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.