The massive fire in Fort McMurray continues to burn, with no progress made in controlling the blaze. A huge plume of brown smoke, previously confined to central Canada and the Dakotas, is now wafting into the Southeast U.S., transported by upper-level winds.

The smoke can be seen plainly on satellite imagery from GOES East. Sunny skies over the Midwest and Southeast are sandwiched by clouds to the west and over the Eastern Seaboard. The high pressure ridge and accompanying clear air has made it obvious just how far the effects of the Fort McMurray fire have traveled.

Satellite analysis from NOAA shows smoke has reached as far south as Florida.

The smoke, which rises high into the atmosphere where its picked up by the jet stream, is dimming the sun and polluting the air. Those under the thickest parts of the smoke band might see a hazy sky, and a brilliant, warm sunset.

As of Friday morning, the Fort McMurray fire burned over 247,000 acres. It grew by 37,000 acres Thursday night, reports the CBC. Weather has not been kind to firefighters or any of their suppression efforts.

Fire danger remains “extreme” on Friday, according to Environment Canada. “Extreme” fire danger means that fires will be fast-spreading and high-intensity. Instead of spreading at ground-level, the wildfire will jump from treetop to treetop. It will be extremely difficult to control, and will only be approachable on the flanks, or sides. At the head, or the fastest-spreading part of the fire, the department says that only indirect actions will be possible.

On Tuesday, a mandatory evacuation notice was issued for 88,000 residents in and around Fort McMurray — the largest wildfire evacuation on record in Canada. Friday morning, those residents who had fled north are now part of a massive convoy attempting to drive south through the fire to get to safer ground.