Colorado — A powerful stretch of windy weather is setting up across northeastern Colorado as a fast-moving jet stream and an approaching cold front combine to create elevated to critical fire danger through the end of the workweek. Forecasters warn that conditions on both Thursday and Friday could allow fires to spread rapidly, especially in areas north and east of Denver.
While the Denver metro area is not included in the highest-risk zone, communities across the northern Front Range and the northeastern plains are expected to face two consecutive days of dangerous fire weather conditions.
Jet Stream and Cold Front Drive Prolonged Wind Event
Meteorologists say the developing pattern is being driven by a strong upper-level jet stream, which will align with a surface cold front moving into the region late Friday. This setup favors persistent, gusty winds, very low humidity, and dry fuels — a combination that significantly signals fire risk.
Forecasters caution that even a small spark could become dangerous under these conditions, particularly in open grassland areas.
Red Flag Warning Issued for Thursday
A Red Flag Warning is in effect Thursday from 10 a.m. to 6 p.m. across parts of northeastern Colorado.
During this time, expected conditions include:
- Sustained winds of 15 to 30 mph
- Wind gusts between 30 and 50 mph
- Relative humidity dropping as low as 14%
For context, average January humidity on a dry day typically ranges between 30% and 40%, highlighting just how dry the air mass will be.
These conditions are especially concerning for rural and open areas where dry grasses can ignite easily.
Friday Brings Stronger Winds and Critical Fire Risk
Friday is expected to be the most dangerous day of this wind event.
A Fire Weather Watch has been posted as wind speeds increase further when the jet stream and cold front fully align.
Forecast highlights for Friday include:
- Wind gusts potentially reaching 65 mph
- Strongest winds from the northern Front Range foothills into the northeastern plains
- Humidity levels dropping to around 13%
- Peak threat window from 10 a.m. to 6 p.m.
Areas in and near Fort Collins and parts of Weld County are among those facing the greatest concern. Officials note that power shutoffs may be possible in some locations if conditions threaten utility infrastructure.
Read Also: Freezing Cold and Gusty Winds Grip Maryland as Arctic Air Settles In
Temperature Drop Follows the Wind
The approaching cold front will also bring a noticeable temperature change.
- Thursday: Highs climbing into the 60s
- Friday: Highs dropping into the 40s behind the front
While cooler temperatures can eventually help reduce fire behavior, forecasters stress that the strongest winds will arrive before meaningful moisture or relief, keeping fire danger high through much of Friday.
What Residents Should Do
Officials urge residents in high-risk areas to take precautions seriously.
Recommended actions include:
- Avoid outdoor burning or activities that could spark fires
- Secure loose items that could be blown into power lines
- Be prepared for possible power interruptions
- Report smoke or fire immediately
Even in areas not under warnings, gusty winds can quickly spread flames once ignition occurs.
Looking Ahead to the Weekend
Winds are expected to ease heading into the weekend as the cold front moves through and the jet stream shifts east. This should bring improving fire weather conditions, though officials note that dry fuels will remain in place.
For now, forecasters emphasize that Thursday and Friday represent a high-risk window, and caution is essential until conditions calm.
Are you seeing strong winds where you live, or has fire danger already become a concern in your area? Share your local conditions in the comments.
