Excessive Heat — Sonoran Desert Natl Monument, Arizona

2018-07-05 to 2018-07-08 · Sonoran Desert Natl Monument, Arizona

Wider weather episode

A heatwave, resulting from strong high pressure over the region, led to excessive heat warning conditions across much of south-central and southwest Arizona. Twenty fatalities (13 direct and 7 indirect) were reported by the Maricopa County Department of Public Health.

Source: NOAA Storm Events Database, event_id 864726. Narrative written by the NWS forecast office that issued the report.