What's being called the Campbell Fire has just broken out Thursday morning in the vicinity of Oakville Grade Road and Campbell Creek Road in Napa County, just outside of Yountville on the west side of Highway 29.

The vegetation fire was first reported at 9:30 a.m. and given a name, and it reportedly burned about five acres. As ABC 7 reports, air support is not possible due to the thick smoke blanketing the area.

The fire is several miles southeast of the southeastern edge of the Glass Fire.

Given forecasted winds out of the northwest today, it seems plausible the cause was a flying ember coming from the northwest, from the Glass Fire, though that will be under investigation.

Fire crews were heading into the area to quell the flames, and thankfully the fire appears to be accessible by road at this time.

At least one local resident reports on Twitter that firefighters have already "knocked it down."

Let's hope the rest of the day and tomorrow aren't just repeats of this.

Update: The Campbell Fire was contained quickly, per KRON4 and the mayor of Yountville.