The scope of destruction from a blaze in California’s famed Napa Valley wine region is mounting as the state has seen a record number of acres scorched by wildfires in 2020.

Continue Reading Below

Cal Fire said the state set a grim record Sunday as 4 million acres have been burned by wildfires, an area larger than the state of Connecticut.

“The 4 million mark is unfathomable. It boggles the mind, and it takes your breath away,” Cal Fire spokesman Scott McLean said Sunday. “And that number will grow.”

NAPA VALLEY WINERIES FACE FURY OF LATEST CALIFORNIA WILDFIRE AS 2020 DAMAGES MOUNT

The top priority of the 23 major wildfires burning across the state is the Glass Fire, which ignited a week ago and has been burning in Napa and Sonoma counties.

In this Sunday, Sept. 27, 2020, file photo, an air tanker drops retardant on the Glass Fire burning in Calistoga, Calif. (AP Photo/Noah Berger, File)

As of Sunday night, Cal Fire said the fire has burned some 64,900 acres and is 26% contained. Fire officials noted that “critically low fuel moistures” and very warm and dry weather conditions are allowing for “very active fire behavior.”

“We are seeing some relief in the weather, but it’s going to be three or four days before it really makes a difference on the fire,” Cal Fire meteorologist Tom Bird said at a Sunday news briefing.

More than 30,000 people were still under evacuation orders on Sunday, down from 70,000 earlier in the week. Among those still unable to return home are the entire 5,000-plus population of Calistoga in Napa County. Hundreds of structures have been damaged or destroyed.

CALIFORNIA WILDFIRE BURNS THROUGH NAPA VALLEY WINERIES, RESORTS AS GLASS FIRE RAGES

The blaze has damaged or destroyed at least 17 wineries in Napa Valley as more than 215 in the region remain under mandatory evacuation orders or evacuation warnings, the San Francisco Chronicle reported Sunday.

Charred wine bottles rest at Castello di Amorosa, Monday, Sept. 28, 2020, in Calistoga, Calif., which was damaged in the Glass Fire. (AP Photo/Noah Berger)

“The toughest thing is that there just doesn’t seem to be an end to this,” Justin Hunnicutt Stephens of Hunnicutt Wine Co. told the newspaper.

According to the Chronicle, the wineries that have seen damage include Chateau Boswell, Hunnicutt, Hourglass, Dutch Henry, Fairwinds, Burgess Cellars and Castello di Amorosa.

A damaged vehicle and wine warehouse stand, Monday, Sept. 28, 2020, in Calistoga, Calif., at Castello di Amorosa, which was damaged in the Glass Fire. (AP Photo/Noah Berger)

The blaze also damaged Behrens, Newton, Cain, Flying Lady, Sherwin, School House, Fantesca and Spring Mountain Vineyard wineries after the blaze scorched Spring Mountain, the paper reported.

Charred wine bottles rest at Castello di Amorosa, Monday, Sept. 28, 2020, in Calistoga, Calif., which was damaged in the Glass Fire. (AP Photo/Noah Berger)

While others have emerged unscathed, vintners have said this most recent fire is forcing them to wrap up this season’s harvest as soon as possible due to fruit left on the vines being exposed to yet more wildfire smoke.

Weather improves for California, wildfire conditions worsen for central West

Sixty-six wildfires of 100 acres or greater continue to burn across the western US, but in some of the harder-hit locations across California the weather is improving.

For the first time in weeks, there are no fire weather advisories across the state.

GET FOX BUSINESS ON THE GO BY CLICKING HERE

Cooler temperatures, more humidity and less wind are expected for the next few days. Unfortunately, conditions have worsened in the central West.

The wildfire risk has shifted east over the central parts of the West and into the Plains for Monday, Oct. 5, 2020. (Fox News)

With dry conditions and daytime highs climbing into the 80s, red flag warnings have been issued on Monday across portions of Utah, Wyoming, Colorado, Kansas and Nebraska.

READ MORE ON FOX BUSINESS BY CLICKING HERE

Fox News’ Adam Klotz and the Associated Press contributed to this report.