cavanaugh. it is still early this morning, but the temperatures are up. f what does 110 fahrenheit feel like? reporter: pam, i can tell you when we were out shooting yesterday, it is brutal. the sun is obviously not up yet, so it s probably the most tolerable part of the day. we are expecting temperatures of 112 degrees with the mercury expected to soar past 118 by this weekend. scorching summers may be the norm for arizona s desert cities, but the brutal heat wave engulfing phoenix and the american southwest could be the worst on record. cities sizzling under triple digit temperatures with no break in sight. this heat wave can be fatal. reporter: firefighters are seeing a jump in calls related to heat sickness. the long periods of time where we just don t seem to get any relief.
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