The Heartland will go dark for about of two minutes on Aug. 21. That's when the Heartland will be treated to a total eclipse of the sun.
First responders in Williamson and Jackson counties say populations in just those areas could swell to 135,000 to 350,000 people.
No matter where in the Heartland you live, you may consider taking some precautions. CLICK HERE to see what emergency officials suggest.