The Wallow wildfire in Arizona near the New Mexico border has grown to the 2nd-largest wildfire in the state’s history. Now there is concern that it could cause some power blackouts (ABC story and videos).

Here’s what this thing looks like on a NASA MODIS satellite image taken yesterday at 1:25 pm local time. The AZ/NM border is shown as a pale vertical line. Click for a larger view:

And here’s detail of the active fire zone from the same image, with the border removed: