The path of the lahar!

If you are interested in why we have those crazy lahar drills, here are some links to keep you up at night.
General Info
Good gov site
According to PBS, Mt. Rainier is America's most dangerous volcano...
Paths of Destruction: The Hidden Threat at Mount Rainier

Official release about today's test:

On Monday March, 5th at noon, Pierce County Emergency Management will test the 17 outdoor lahar warning sirens in the Puyallup River Valley. This is a monthly drill that takes place on the first Monday of the month. A Pierce County Alert will be launched at 9:00 on Monday morning to citizens who have signed up to receive informational messages.