Satellites: NOAA-15
and NOAA-17,
part of NOAA's 850km-high (530 mile-high) Polar
Orbiting satellites
Cold front a-comin'
The false color image and the thermal image below show
the clear delineation of the warm and cold areas on either side of the jet
stream.
The mass of cooler air from Canada is expected to cool things down quite a bit
from the high temperatures currently in much of the US.
Click on the image(s) below for a higher-resolution (>100k) version.