Hay Fire breaks out east of Vacaville, crews stop forward progress on 10 acres
Key Takeaway: A vegetation fire dubbed the Hay Fire broke out near Hay Road and Dally Road east of Vacaville on Tuesday afternoon, reaching 10 acres with 0% containment as of 1:45 PM, though forward progress had been stopped, according to CAL FIRE.
Firefighters converged on a vegetation fire east of Vacaville on Tuesday afternoon as the blaze, dubbed the Hay Fire, grew to 10 acres near Hay Road. CBS News reported the fire was first reported shortly after 12 p.m., while CAL FIRE lists the official start time as 12:02 PM.
As of 1:45 p.m., the fire was 0% contained, though forward progress had been stopped at 1:33 p.m., according to CAL FIRE. No injuries or structural damage had been reported, and no evacuation orders or road closures were in effect.
What we know
The fire broke out near Hay Road and Dally Road, east of Vacaville in Solano County. It was moving south through light, flashy fuels, with a fourth alarm requested at 12:48 PM, according to CAL FIRE.
The acreage stood at 8-10 acres at 12:48 PM and was listed as 10 acres on the CAL FIRE incident page as of the 1:45 PM update, figures consistent within rounding.
“Incident Command is reporting Hay Fire near Hay Road and Dally Road, east of Vacaville, is approximately 8-10 acres, moving to the south, burning in light and flashy fuels. A fourth alarm has been requested.”
CAL FIRE Public Information Officer update, 12:48 PM Oct 20, 2026
Response
The Vacaville Fire Protection District is the agency having jurisdiction, with Vacaville, Fairfield and Dixon fire departments and the Montezuma Fire Protection District also responding. CAL FIRE is assisting with a battalion chief, four engines, two dozers, two crews, one helicopter, two air tankers and one air attack.
The cause of the fire is under investigation, and officials had reported no injuries, structural damage, evacuations or road closures as of 1:45 p.m.
“Incident Command reports that forward progress of the fire has been stopped.”
CAL FIRE Public Information Officer update, 1:33 PM Oct 20, 2026
Key Story Metrics
| Figure | Reported Status |
|---|---|
| Burned area | 10 acres (CAL FIRE, as of 1:45 PM Oct 20) |
| Containment | 0% (CBS News / CAL FIRE, as of 1:45 PM) |
| Start time | 12:02 PM (CAL FIRE (official listing)) |
| Forward progress | Stopped at 1:33 PM (Incident Command via CAL FIRE) |
✓ Verified
• Hay Fire broke out near Hay Road and Dally Road, east of Vacaville, Solano County, on Oct 20, 2026 (CBS News; CAL FIRE).
• Size: 8-10 acres at 12:48 PM, 10 acres as of 1:45 PM (CAL FIRE).
• 0% contained as of 1:45 PM; forward progress stopped at 1:33 PM (CBS News; CAL FIRE).
• No injuries, structural damage, evacuations or road closures as of 1:45 PM (CBS News; CAL FIRE).
• Cause under investigation (CAL FIRE).
⚠ Still needs confirmation
• Start time of 12:02 PM is CAL FIRE’s official listing, reported by a single official source.
• Forward progress stopped at 1:33 PM is a single-source Incident Command report.
• Resource figures (battalion chief, four engines, two dozers, two crews, one helicopter, two air tankers and one air attack) come from the 1:12 PM CAL FIRE update, a single official source.
• The fourth alarm request at 12:48 PM is single-sourced to CAL FIRE.
Frequently Asked Questions
How big is the Hay Fire?
10 acres as of 1:45 PM on October 20, 2026, per CAL FIRE.
Is the Hay Fire contained?
It was 0% contained as of 1:45 PM, but forward progress had been stopped at 1:33 PM, according to CAL FIRE.
Were evacuations ordered?
No evacuation orders, warnings or road closures had been reported as of publication.
What caused the Hay Fire?
The cause is under investigation, according to CAL FIRE.
Editor’s note: Acreage and containment figures reflect reporting through Tuesday afternoon; the fire was still developing at publication time.
