Flames Pour of US-Mexican Border as Firefighters Battle Massive 2,400 Acre Tecate Blaze

A massive brush fire, initially known as the "Border 21 Fire" but now confirmed to be connected to the earlier "Border 20 Fire", has prompted evacuation warnings on both sides of the US-Mexico border, as the flames continue to ravage the area surrounding Tecate. The blaze has burned a combined total of over 2,400 acres in the US and Mexico, raising concerns about the ability of fire crews to rapidly contain the spread and the potential impact on communities in both countries.

As FOX 5 San Diego reported, the fire initially seemed to be two separate incidents, with the "Border 21 Fire" emerging in the vicinity of the earlier "Border 20 Fire" that consumed 458 acres. However, it was later confirmed that the two fires were connected, with the combined flames now prompting local authorities to issue evacuation warnings for communities on both sides of the border.

The San Diego County Sheriff's Department issued an evacuation warning for the Portrero area in the southeastern part of the county, off of Grapevine Truck Trail and Tecate Truck Trail, with a temporary evacuation point set up at Steele Canyon High School in Spring Valley. In Mexico, Enrique Garcia, director of Tecate Fire and Civil Protection, stated that the fire has burned about 2,000 acres, but no homes or ranches were threatened as of Thursday night, NBC San Diego notes.

Cal Fire, which has been heavily involved in battling the blaze and providing support to communities affected, has been using fire retardant from planes to reduce the threat along the border. In addition, a smoke advisory has been issued for Dulzura and Potrero in San Diego County due to poor air quality caused by the fire, with residents advised to limit physical and outdoor activities, especially those with respiratory or heart diseases, the elderly, and children, in order to minimize exposure to fine particulate matter and ozone, as we reported here on Hoodline San Diego.

On Wednesday, the initial "Border 20 Fire" was thought to have started at a ranch along the Tijuana-Tecate Highway, with its cause believed to be people clearing brush from the land with fire, according to NBC San Diego. The investigation into the exact cause of the fire is still ongoing, as well as efforts to officially determine how it sparked the subsequent "Border 21 Fire."