Looking for red weather balloons!

Help. If you see an eight foot red weather balloon anywhere in the continental United States on December 5th, I need you to contact me, now.

More info: https://networkchallenge.darpa.mil/default.aspx

They'll look like this: https://networkchallenge.darpa.mil/gallery.aspx

Update:

Final locations were posted. They are...

Balloon 1: Union Square, San Francisco, California
N 37° 47' 16" W 122° 24' 26"

Balloon 2: Chaparral Park, Scottsdale, Arizona
N 33° 30' 36" W 111° 54' 29"

Balloon 3: Tonsler Park, Charlottesville, Virginia
N 38° 1' 34" W 78° 29' 28"

Balloon 4: Chase Palm Park, Santa Barbara, California
N 34° 24' 51" W 119° 41' 5"

Balloon 5: Lee Park, Memphis, Tennessee
N 35° 8' 17" W 90° 3' 43"

Balloon 6: Collins Avenue, Miami, Florida
N 25° 54' 14" W 80° 7' 31"

Balloon 7: Glasgow Park, Christiana, Delaware
N 39° 36' 30" W 75° 43' 51"

Balloon 8: Katy Park, Katy, Texas
N 29° 48' 56" W 95° 48' 15"

Balloon 9: Waterfront Park, Portland, Oregon
N 45° 30' 44" W 122° 40' 28"

Balloon 10: Centennial Park, Atlanta, Georgia
N 33° 45' 33" W 84° 23' 33"

I had the Delaware and Portland ones, but submitted them too late to MIT to win any cash.