9:45 AM: Thanks for the texted tip! Seattle Fire has a major training operation at a to-be-demolished house at 50th and Hudson [map] – house-fire practice for recruits – and will be there every day for the rest of the week. Nearby residents have been notified but this will catch the eyes of many passersby, because Hudson in that area leads to Jacobsen Road, which many drivers, walkers, runners, and riders take to get to and from Beach Drive, south of Me-Kwa-Mooks and Emma Schmitz Memorial Overlook.

A hydrant is running for the training, and we’ve already received brown-water reports as a result. SFD says people are welcome to watch “from a safe distance”; while the trainees were being briefed, early spectators including a mom and toddler were watching from the south side of Hudson, and a firefighter came over to offer a sticker.

If you’re planning to use that route to and from Jacobsen, please slow down, multiple SFD vehicles are in the area for the training. We’ll be going back over for a closer look at what they’re doing, and will update. (We last covered this kind of trainee operation back in 2013 before the Beach Drive residential-building demolitions for the Murray CSO project.)

11:35 AM: When we went back, the first training fire was under way: