DALLAS, Tx- The American Red Cross North Texas Region reminds North Texans that next week may bring the highest temperatures weâve seen this summer. A little preparation can go a long way in helping to keep you, your family and your pets safe during intense heat. EXTREME HEAT CONDITIONS As with severe weather there are several key terms that you need to pay close attention to so that you and those you care about can stay safe or know when to call and ask for help. Extreme Heat Watch is issued if the potential for extreme heat could occur within the next 24-72 hours.