Severe weather over Denver delayed nearly 30 flights on Monday night. Prior to the weather events, Denver hit a record-breaking temperature before a cold front moved in, causing havoc for inbound and outbound flights.
The collision of the two fronts resulted in injury-inducing turbulence, which had many travelers entering an ambulance rather than the terminal as they disembarked.
A Record-Breaking Hot Day Unleashed Severe Weather Conditions
As Monday unfolded, the temperature steadily climbed past 100 degrees Fahrenheit. This temperature was clocked in 1878 as the previous highest, until August 3rd, 2026. The temperature hit 102 degrees at Denver International Airport, where air quality alerts were already in effect due to drifting smoke from the Pacific Northwest.
As smoke covered the sky and worsened what was turning into a miserable day for travel, severe weather conditions were building as a cold front moved in. Heat advisories were issued along the I-25 corridor, while heavy winds picked up speed and temperatures slowly dropped in the late afternoon.
By 6 PM, the heat advisory was over, and temperatures dipped back into the double digits. However, this sudden drop in temperature from Colorado’s Front Range caused unstable atmospheric conditions. It brought wind gusts of up to 40 MPH, along with significant temperature drops of 50–60 degrees overnight.
It also brought turbulence for Denver International Airport. High winds due to the merging fronts caused harsher conditions in the air than on the ground.
29 Flights Diverted to Colorado Springs
The suddenness of the cold front did not allow much time for the FAA to make a call. They grounded a total of 29 flights, which were diverted from Denver to Colorado Springs. Many passengers who were stuck in the air as the cold front moved in described the experience as the worst turbulence of their lives.
“I’m on a flight that just tried to land there, and it was the worst turbulence I’ve ever experienced. We diverted to Hayden and are stuck on a plane. It was not fun,” one user posted on Reddit.
“There’s a steady stream right now of aircraft repositioning from COS back to DEN after diverting. Like 8 in a row right now. Southwest, United, SkyWest,” one user replied, commenting on the 29 flights that were diverted one after another. Another passenger shared that the flight crew for their flight timed out, and they swapped a plane ticket for an Uber to Denver.
Several passengers aboard inbound flights alerted flight crews to injuries, and they were picked up by ambulance due to medical concerns. One person, reported in stable condition, was transported to a nearby hospital. Five passengers in total received medical assistance before getting off the plane.
“Flew out today at 2 PM, and it was bangy as heck to 10,000’. They made the regular announcements about devices, etc. at that altitude, and I could tell it was purposeful to convey calm because the cabin was squirrely with some little yelps,” one plane passenger shares about their experience during a late-afternoon flight.
Those who didn’t have their flights canceled altogether were faced with significant delays. “Currently here in DEN. Our flight was stuck in the air for an hour. Our connecting flight left before we landed. Our new flight has been delayed 4 times. Our original flight left at 6. Our new 9 PM flight is currently delayed until midnight,” one traveler shares.
|
Inbound Flights |
Outbound Flights |
|
|---|---|---|
|
Delayed |
388 |
459 |
|
Canceled |
16 |
28 |
All in all, 40% of Denver’s total outbound flights were delayed due to severe wind conditions by the end of Monday night. Its incoming traffic took a similar hit, losing 32% of on-time flights, forcing much of the schedule back into Tuesday morning. While many of these were diverted to other airports in the region, 3% of total flight traffic was ultimately lost to canceled flights.
According to the U.S. turbulence map via Turbli, most of the turbulent air has moved northeast toward the Great Lakes. As it shifts out of the area, passengers can expect smoother conditions. Much of this turbulent air is also hovering over the Northeast as of 9 AM on Tuesday morning, causing unstable air conditions for eastern New York and New England.
Flights in and out of Denver are traditionally turbulent due to wind shear and high-altitude mountain conditions.
As of Tuesday, August 4th, conditions are far better, with temperatures hovering between 75 and 80 degrees Fahrenheit. While there are still some gusty winds and wildfire haze, Monday’s cold front brought down heat advisories. It’s also Denver’s coolest summer morning since June 20th, offering a much-needed break for travelers heading in and out of Denver International Airport.
