Spaceflight Insider

Wildfire at Vandenberg Air Force Base zero percent contained

Vandenberg wildfire Sunday morning

A photo of the wildfire as seen on Sunday morning. Photo Credit: 30th Space Wing

LOMPOC, Calif. — The wildfire that prompted a delay of a United Launch Alliance (ULA) Atlas V rocket scheduled to fly out of Vandenberg Air Force Base’s Space Launch Complex 3-East (SLC-3E) Sept. 18 has yet to be contained.

What was a 500-acre fire on Sunday morning has since grown to consume nearly 5,000 acres and continues to burn at what is being described as a “slow to moderate speed”.

According to an update by the 30th Space Wing, as of 7:30 a.m. PDT (14:30 GMT) Monday, the fire was zero percent contained and had expanded to 4,528 acres. It continues to move toward the southern base boundary and Sudden Ranch area.

vandenberg fire locatin

The red area represents the area the fire is being fought. Image Credit: CalFire / Google Maps

The planned Sunday launch of the Atlas V rocket with the WorldView-4 satellite, which is now targeting Sept. 26 pending the extinguishing of the fire, was not postponed because of any immediate threats to launch facilities but to allow for firefighting personnel to continue fighting the blaze instead of having to clear out for a launch.

“Our procedures require stand-by firefighting crews for every launch to ensure [the] safety of our personnel and facility protection,” Col. Paul Nosek, Emergency Operations Center commander, said on Sunday. “We’ve delayed the launch in order to concentrate our resources on the situation at hand.”

As the fire worsened, however, base restrictions were put in place.

“Effective immediately and until further notice, only mission-essential personnel, as designated by their commander, will be granted access to South Base,” a Sunday evening update stated. There is no restriction for North Base activities.

However, an update at 5:10 p.m. PDT Monday (00:10 GMT Tuesday) stated that due to predicted expansion of the fire through the course of the day, access on South Base was limited to emergency personnel only.

In a report by Spaceflight Now, two workers were injured and transported to a local hospital for treatment. The 30th Medical Group is also monitoring the air quality at North Base. As of 5:20 p.m. PDT Monday (00:20 GMT Tuesday), the air quality was measured as normal, but sampling will continue throughout the night.

According to the San Luis Obispo Tribune, the fire near the base’s facilities present unique challenges. For example, a “mystery tank” near SLC-6, where Delta IV rockets are launched, was spotted by firefighters and they wanted to know if it was flammable.

It turned out to be a water tank; however, the fact the blaze is only a half-mile to a mile from SLC-6 and the other launch pads – SpaceX’s SLC-4E and ULA’s SLC-3E – means potentially dealing with highly flammable materials present around the launch site.

To make matters worse, according to the Tribune, firefighters are warning about possible unexploded ordnance leftover from when the base was a training facility during World War II and the Korean War.

So far, no buildings have been harmed by the blaze and resources are being put into place to protect facilities from the advancing fire. In addition to the Atlas V and its payload at SLC-6, at SLC-4E, SpaceX has a Falcon 9 rocket with 10 Iridium communication satellites.

As of Monday morning, teams were using a helicopter to map fire lines and evaluate the progress of the blaze in order to better place fire fighting resources. So far, only small electrical outages have occurred on the South Base due to downed power lines. Buildings that lost electricity were placed on generator power until commercial power can be restored.

The blaze started on Sept. 17 in a remote area in a canyon between Arguello and Santa Ynez Ridge Roads. Dry vegetation and warm weather are fueling the fire.

Nearly 800 Vandenberg, U.S. Forestry Service, CalFire, and Santa Barbara County firefighters are on hand to battle the blaze.

“Vandenberg AFB firefighter and security forces are assessing possible causes,” stated the 30th Space Wing update on Monday morning. “However, at this time, the cause of the fire is unknown.”

Huge plumes of smoke rise up from the area surrounding Vandenberg Air Force Base. These were caused by wildfires in the area. Photo Credit: Matthew Kuhns / SpaceFlight Insider

Huge plumes of smoke were clearly visible miles outside of VAFB Sept. 18. Photo Credit: Matthew Kuhns / SpaceFlight Insider



Derek Richardson has a degree in mass media, with an emphasis in contemporary journalism, from Washburn University in Topeka, Kansas. While at Washburn, he was the managing editor of the student run newspaper, the Washburn Review. He also has a website about human spaceflight called Orbital Velocity. You can find him on twitter @TheSpaceWriter.

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