Alert archive / Colorado / Flood Watches in 2026

Flood Watch 2, NWS Denver/Boulder, CO

July 29, 20264 counties in Colorado

NWS Denver/Boulder, CO issued this flood watch at Jul 29, 2026, 11:22 AM MDT for 4 counties in Colorado. It took effect at Jul 29, 2026, 2:00 PM MDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Jul 29, 2026, 11:22 AM MDT (17:22 UTC)
In effect from: Jul 29, 2026, 2:00 PM MDT
Expired: Jul 29, 2026, 9:00 PM MDT
In force: 7 hr
Issued by: NWS Denver/Boulder, CO
Flood severity: None

Counties Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO

The radar

The Denver radar (KFTG), 59 km from the middle of the area, began a volume at 17:24 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 flood watch 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 flood watch went out at Jul 29, 5:28 AM MDT, 5 hours 54 minutes earlier.

Area forecast discussion, Jul 29, 5:28 AM MDT, 5 hours 54 minutes before

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In the hours before

Local storm report, Jul 29, 10:34 AM MDT, 48 minutes before

Preliminary Local Storm Report
National Weather Service Denver CO
1034 AM MDT Wed Jul 29 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0204 PM     Hail             Lyons                   40.23N 105.27W
07/28/2026  M1.00 Inch       Boulder            CO   Cocorahs

            Delayed report via CoCoRaHS. Hail lasted
            approximately 12 minutes and dented some
            cars.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 6:04 PM MDT	Special Weather Statement	BOU	Sedgwick	41 min
Jul 28, 6:11 PM MDT	Severe Thunderstorm Warning	BOU	Sedgwick	49 min
Jul 28, 7:52 PM MDT	Areal Flood Advisory	BOU	Lincoln	113 min
Jul 28, 8:20 PM MDT	Flash Flood Warning	BOU	Logan	3 hr
Jul 29, 12:34 PM MDT	Areal Flood Advisory	BOU	Park	3 hr
Jul 29, 1:02 PM MDT	Areal Flood Advisory	BOU	Clear Creek, Gilpin	3 hr
Jul 29, 2:38 PM MDT	Special Weather Statement	BOU	Douglas	37 min
Jul 29, 2:45 PM MDT	Areal Flood Advisory	BOU	Arapahoe, Douglas, Elbert	3 hr
Jul 29, 2:48 PM MDT	Special Weather Statement	BOU	Denver	27 min
Jul 29, 3:01 PM MDT	Areal Flood Advisory	BOU	Adams, Denver	3 hr
Jul 29, 3:06 PM MDT	Flash Flood Warning	BOU	Douglas	3 hr
Jul 29, 3:10 PM MDT	Areal Flood Advisory	BOU	Larimer	3 hr
Jul 29, 3:16 PM MDT	Special Weather Statement	BOU	Arapahoe	44 min
Jul 29, 3:25 PM MDT	Special Weather Statement	BOU	Adams	50 min
Jul 29, 3:37 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe	38 min
Jul 29, 3:56 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Morgan, Weld	49 min
Jul 29, 4:16 PM MDT	Severe Thunderstorm Warning	BOU	Morgan, Weld	44 min
Jul 29, 4:32 PM MDT	Areal Flood Advisory	BOU	Adams	3 hr
Jul 29, 5:01 PM MDT	Special Weather Statement	BOU	Weld	29 min

Nearby

Flood Watches in Colorado, 2026 Every flood watch 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.