ByAllison Chinchar, Hannah Gard and

https://www.cnn.com/2021/06/18/weather/heat-wave-records-west-forecast/index.html

CNN)The West is in the midst of a record-breaking heat wave this week, as all-time records were shattered and daily records broken in over a dozen states.Even by desert standards, the heat wave in the Southwest is atypical. On Thursday, the National Weather Service in Tucson tweeted that the city recorded a temperature of 100 degrees at 8:14 a.m., the second earliest time in the day recorded since 1948.https://platform.twitter.com/embed/Tweet.html?dnt=false&embedId=twitter-widget-0&features=eyJ0ZndfZXhwZXJpbWVudHNfY29va2llX2V4cGlyYXRpb24iOnsiYnVja2V0IjoxMjA5NjAwLCJ2ZXJzaW9uIjpudWxsfSwidGZ3X2hvcml6b25fdHdlZXRfZW1iZWRfOTU1NSI6eyJidWNrZXQiOiJodGUiLCJ2ZXJzaW9uIjpudWxsfSwidGZ3X3R3ZWV0X2VtYmVkX2NsaWNrYWJpbGl0eV8xMjEwMiI6eyJidWNrZXQiOiJjb250cm9sIiwidmVyc2lvbiI6bnVsbH19&frame=false&hideCard=false&hideThread=false&id=1405552999255052288&lang=en&origin=https%3A%2F%2Fwww.cnn.com%2F2021%2F06%2F18%2Fweather%2Fheat-wave-records-west-forecast%2Findex.html&sessionId=c2d6f3047bf1d9dbf58ce567bf688ec86392901e&theme=light&widgetsVersion=82e1070%3A1619632193066&width=550pxThat’s only slightly later than the earliest time recorded for reaching 100 degrees, which was in 2017 on June 20, when Tucson hit 100 degrees at 8:02 a.m. The high that day was 116 degrees. The all-time high temperature recorded in Phoenix of 122 degrees occurred on June 26, 1990.

High heat so early in the day have reinforced the need for the excessive heat warnings that have been in place throughout Arizona, Nevada…