From the Bostic mailing list:

From: Tim Ruddick

On Fri, Sep 05, 2003 at 10:39:00AM -0400, nev@bostic.com wrote:
> http://john.hoke.org/images/us_overflight.jpg
> The Blackout.

The image at john.hoke.org looks a little fishy. The "blackout area"
is darker than the Atlantic Ocean to the East. I'd expect it to look
more like the dark parts of thinly-settled Canada, to the North.

Here are some images posted by the National Oceanic and Atmospheric
Administration.

Before
  http://www.noaanews.noaa.gov/nightlights/blackout081403-20hrsbefore-text.jpg

After
  http://www.noaanews.noaa.gov/nightlights/blackout081503-7hrsafter-text.jpg

There's some commentary at NASA's Earth Observatory web site:

  http://earthobservatory.nasa.gov/NaturalHazards/shownh.php3?img_id=11628

Also at the Earth Observatory: "European Heat Wave"

  http://earthobservatory.nasa.gov/NaturalHazards/shownh.php3?img_id=11166

Tim.