Jun 13, 2016

Weekend mega-ridge will create ‘very dangerous heat’ and topple records in Arizona

Arizona
USA
by
Angela Fritz
,
Washington Post
A strong ridge of high pressure — shown here as 500 mb height anomalies — is expected to build over the Southwest U.S. later this week. Temperatures in the Phoenix area could challenge all-time records. Image: Weatherbell
A strong ridge of high pressure — shown here as 500 mb height anomalies — is expected to build over the Southwest U.S. later this week. Temperatures in the Phoenix area could challenge all-time records. Image: Weatherbell

An excessive heat watch is in effect for over 55,000 square miles of Arizona and southeastern California, including Phoenix, Tucson and Yuma. High temperatures are expected to reach 105 to 110 degrees Friday, 110 to 115 degrees Saturday and peak heat — 115 to 120 degrees — Sunday...

In the Phoenix area, the Weather Service is cautioning that the magnitude of this heat is “rare, dangerous, and deadly"