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Smoke in Prince William County came from Marine Corps base controlled burn, officials say

A controlled burn conducted by the Marine Corps base in Quantico, Virginia, along the border of Prince William and Fauquier counties, produced heavy smoke Sunday afternoon. Quantico Fire & Emergency Services said the burn operation occurred from 10 a.m. to 1 p.m. A controlled burn is a “fire set intentionally for purposes of forest management, farming, prairie restoration or greenhouse gas abatement,” the department said in a Facebook post.

Emergency officials in Prince William County are asking residents to refrain from calling 911 to report the smoke, unless they are reporting a life-threatening emergency, smoke inside a structure of flames near a structure. Those with respiratory illnesses or medical conditions that could be aggravated by the smoke are asked to stay inside until it dissipates. The map below gives a view of the area affected by the smoke. County officials said the smoke has spread over several thousand acres.

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In addition, the National Weather Service is noting the smoke has appeared on its radar, displaying like low-level clouds.

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School bus emergency? Fairfax County students have a plan to handle it

This story is part of WTOP’s 2026 Back to School coverage. The wheels on the bus will soon be going round and round again in Fairfax County, Virginia, and some of its young riders are learning what to do if there’s an emergency on the way to school. The annual Safety Patrol Training Camp, hosted by Fairfax County Public Schools' Office of Transportation Services, combined hands-on exercises with classroom lessons to teach students how to keep calm during emergencies on buses. The training can feel remarkably realistic, with overturned school buses on their side or completely upside down in the middle of the county bus depot. Other buses, right side up, fill with smoke that is water-based but mimics the intensity of a bus overheating.
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