Heat Advisory issued June 17 at 3:00PM MST until June 22 at 8:00PM MST by NWS

...HEAT ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 8 PM MST THURSDAY... The National Weather Service in Flagstaff has issued a Heat Advisory, which is in effect from 10 AM Sunday to 8 PM MST Thursday. * AFFECTED AREA...Apache, Navajo, and most of Coconino counties.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2tA6Uzh