Extreme Heat Wave Continues; New Heat Watch for Southern Arizona

Prolonged heat wave continues with Phoenix hitting 116°F on Aug 2; Yuma similar. Extreme Heat Warning extended. Over 3,000 heat-related ER visits in AZ. New heat safety rules for outdoor workers in effect. Extreme heat watch for southern Arizona next week – overnight lows not dropping below 80. Phoenix braces for brutal 110-degree week; Yuma likely to see similar dangerous conditions.