Arizona, 2018Excessive Heat in Arizona, June 21 to 23, 2018
June 21 to 23, 2018 · NWS PSR · 17 events in 17 counties and zones
A heatwave developed across the region, resulting in excessive heat warning conditions across parts of central and southern Arizona, with 3 direct fatalities due to the heat reported by the Maricopa County Department of Public Health.
Every event with a place to put it; 17 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
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- Deaths
- 3
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 17
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
A heatwave developed across the region, resulting in excessive heat warning conditions across parts of central and southern Arizona, with 3 direct fatalities due to the heat reported by the Maricopa County Department of Public Health.
Excessive Heat, Central Phoenix
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Central Phoenix forecast zone
- Deaths
- 3 direct, 0 indirect
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Three direct fatalities due to the heat were reported by the Maricopa County Department of Public Health, with the specifics such as age, gender, and circumstances unavailable.
Excessive Heat, Yuma
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Yuma forecast zone
- Reported by
- ASOS
- Coordinates
- 32.769, -113.906 (the zone’s center; the record gives no point)
Excessive Heat, Gila River Valley
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Gila River Valley forecast zone
- Reported by
- ASOS
- Coordinates
- 32.769, -113.906 (the zone’s center; the record gives no point)
Excessive Heat, Gila Bend
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Gila Bend forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Northwest Pinal County
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Northwest Pinal County forecast zone
- Reported by
- ASOS
- Coordinates
- 32.904, -111.345 (the zone’s center; the record gives no point)
Excessive Heat, Buckeye/Avondale
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Buckeye/Avondale forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Cave Creek/New River
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Cave Creek/New River forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Deer Valley
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Deer Valley forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, North Phoenix/Glendale
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- North Phoenix/Glendale forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, New River Mesa
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- New River Mesa forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Scottsdale/Paradise Valley
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Scottsdale/Paradise Valley forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, East Valley
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- East Valley forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, South Mountain/Ahwatukee
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- South Mountain/Ahwatukee forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Southeast Valley/Queen Creek
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Southeast Valley/Queen Creek forecast zone
- Reported by
- ASOS
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Tonto Basin
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Tonto Basin forecast zone
- Reported by
- ASOS
- Coordinates
- 33.800, -110.812 (the zone’s center; the record gives no point)
Excessive Heat, San Carlos
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- San Carlos forecast zone
- Reported by
- ASOS
- Coordinates
- 33.800, -110.812 (the zone’s center; the record gives no point)
Excessive Heat, Globe/Miami
- When
- June 21, 5:00 PM MST to June 23, 4:00 AM MST
- Where
- Globe/Miami forecast zone
- Reported by
- ASOS
- Coordinates
- 33.800, -110.812 (the zone’s center; the record gives no point)
- Excessive Heat
- Heat at or above the local excessive heat warning criteria, or heat that caused deaths.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Excessive Heat in Nevada, June 21 to 23, 20182 deaths · 1 event
- Flash Flooding and Flooding in Virginia, June 21 to 24, 2018$185,000 · 115 events
- Heat in California, June 21 to 22, 20181 death · 2 events
- Flash Flooding and Flooding in Ohio, June 21 to 22, 2018$500,000 · 14 events
- Damaging Winds in Mississippi, June 21, 2018$239,000 · 55 kt wind · 9 events
- Damaging Wind and Lightning Strike in Florida, June 21, 2018$275,000 · 50 kt wind · 2 events
- Damaging Winds in Tennessee, June 21, 2018$91,000 · 60 kt wind · 11 events
- Flash Flooding and Flooding in West Virginia, June 21 to 22, 2018$41,000 · 9 events
- Flash Flood in Louisiana, June 21, 2018$50,000 · 1 event
- Damaging Winds in Kentucky, June 21, 2018$37,000 · 61 kt wind · 3 events
- Flooding in South Dakota, June 21 to 30, 201813 events
- Hail and Damaging Winds in Montana, June 21, 20181.25 in hail · 10 events
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 856204, 864391, 864392, 864393, 864394, 864395, 864396, 864397, 864399, 864402, 864403, 864404, 864405, 864406, 864407, 864408, 864409.