Alert archive / Colorado / Red Flag Warnings in 2025
Red Flag Warning 20, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this red flag warning at Jul 10, 2025, 1:36 AM MDT for Park County, Colorado. It took effect at Jul 10, 2025, 11:00 AM 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
- Jul 10, 2025, 1:36 AM MDT (07:36 UTC)
- In effect from
- Jul 10, 2025, 11:00 AM MDT
- Expired
- Jul 10, 2025, 7:52 PM MDT
- In force
- 9 hr
- Issued by
- NWS Denver/Boulder, CO
County Park County, CO
The radar
The Denver radar (KFTG), 125 km from the middle of the area, began a volume at 07:37 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 Jul 9, 11:36 PM MDT, 2 hours earlier.
Area forecast discussion, Jul 9, 11:36 PM MDT, 2 hours before
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</html>Hazardous weather outlook, Jul 9, 11:16 AM MDT, 14 hours 20 minutes before
Hazardous Weather Outlook National Weather Service Denver/Boulder CO 1116 AM MDT Wed Jul 9 2025 COZ030>051-101730- Jackson County Below 9000 Feet- West Jackson and West Grand Counties Above 9000 Feet- Grand and Summit Counties Below 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Central and Southeast Park County- Larimer County Below 6000 Feet/Northwest Weld County- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Elbert/Central and East Douglas Counties Above 6000 Feet- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Logan County-Washington County-Sedgwick County-Phillips County- 1116 AM MDT Wed Jul 9 2025 ...HEAT ADVISORY IN EFFECT FOR THE URBAN CORRIDOR FROM 10 AM THIS MORNING TO 9 PM MDT THIS EVENING... This hazardous weather outlook is for northeast and north central Colorado. .DAY ONE...This Afternoon and Tonight Very hot temperatures are expected across the plains today, with the potential for a few record highs. Temperatures are expected to remain well above normal overnight tonight as well. There will be isolated thunderstorms over the mountains late, after midnight tonight. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday Slightly cooler high temperatures are expected on Thursday, with a better cool-down on Friday and Saturday. There will be a return to showers and thunderstorms from Thursday onward, with late day Friday and Saturday having the best coverage and measurable rainfall chances. .SPOTTER INFORMATION STATEMENT... Spotter activation will not be needed today or tonight.
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 7:01 PM MDT | Special Weather Statement | BOU | Broomfield | 29 min |
| Jul 9, 7:27 PM MDT | Special Weather Statement | BOU | Broomfield | 48 min |
| Jul 10, 4:06 AM MDT | Severe Thunderstorm Warning | BOU | Adams, Denver | 24 min |
| Jul 10, 11:59 AM MDT | Special Weather Statement | BOU | Arapahoe | 31 min |
| Jul 10, 12:43 PM MDT | Special Weather Statement | BOU | Douglas | 32 min |
| Jul 10, 12:45 PM MDT | Special Weather Statement | BOU | Denver | 30 min |
| Jul 10, 1:14 PM MDT | Special Weather Statement | BOU | Arapahoe | 31 min |
| Jul 10, 1:32 PM MDT | Special Weather Statement | BOU | Broomfield, Gilpin, Jefferson | 28 min |
| Jul 10, 1:42 PM MDT | Special Weather Statement | BOU | Elbert | 33 min |
| Jul 10, 1:51 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Boulder, Broomfield, Denver, Jefferson | 39 min |
| Jul 10, 2:03 PM MDT | Special Weather Statement | BOU | Elbert | 42 min |
| Jul 10, 2:12 PM MDT | Special Weather Statement | BOU | Lincoln | 48 min |
| Jul 10, 2:28 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 47 min |
| Jul 10, 3:00 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Elbert | 45 min |
| Jul 10, 4:06 PM MDT | Special Weather Statement | BOU | Logan | 24 min |
| Jul 10, 4:08 PM MDT | Special Weather Statement | BOU | Lincoln | 52 min |
| Jul 10, 4:17 PM MDT | Special Weather Statement | BOU | Weld | 28 min |
| Jul 10, 4:54 PM MDT | Special Weather Statement | BOU | Weld | 51 min |
| Jul 10, 4:56 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 34 min |
| Jul 10, 5:27 PM MDT | Special Weather Statement | BOU | Morgan | 33 min |
| Jul 10, 5:47 PM MDT | Special Weather Statement | BOU | Washington | 28 min |
Nearby
Red Flag Warnings in Colorado, 2025Every red flag warning 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; radar from the NEXRAD Level II archive.