Arizona, 2019Excessive Heat and Heat in Arizona, September 3 to 5, 2019
September 3 to 5, 2019 · NWS PSR · 20 events in 17 counties and zones
Strong high pressure centered near the Four Corners led to well above normal temperatures and excessive heat warning conditions across the region. Four direct fatalities were reported by the Maricopa County Department of Public Health.
Every event with a place to put it; 20 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
- 4
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 20
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.
Strong high pressure centered near the Four Corners led to well above normal temperatures and excessive heat warning conditions across the region. Four direct fatalities were reported by the Maricopa County Department of Public Health. One of these fatalities was a 3 year old girl who was left in a hot vehicle for 2 to 3 hours as reported by local media.
What forecasters said that day
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Phoenix, AZ wrote its last area forecast discussion before the first event at Sep 2, 10:58 PM MST, 1 hour 2 minutes earlier.
Area forecast discussion, Sep 2, 10:58 PM MST, 1 hour 2 minutes before
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Local storm report, Sep 2, 9:22 PM MST, 2 hours 38 minutes before
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</html>Local storm report, Sep 2, 9:50 PM MST, 2 hours 10 minutes before
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- When
- September 3, 12:00 AM MST to 11:59 PM MST
- Where
- Central Phoenix forecast zone
- Deaths
- 1 direct, 0 indirect
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
One direct fatality was reported by the Maricopa County Department of Public Health, with their details, such as age, gender and circumstances unavailable.
Heat, East Valley
- When
- September 3, 10:00 AM MST to 1:00 PM MST
- Where
- East Valley forecast zone
- Deaths
- 1 direct, 0 indirect
- Reported by
- Broadcast Media
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Hot temperatures on September 3rd stayed just below excessive heat warning thresholds but were still sufficient to cause a fatality when a 3 year old girl was left inside a car for a few hours during the late morning. The high temperature in Phoenix was about 109 degrees. According to a KTAR news report, a 3 year old was left in a car for 2 to 3 hours during late morning; rescue teams responded to a residential area near Higley and Elliot roads in Gilbert after more than one call was received about a child in a vehicle. Responders performed CPR on the girl, who was later taken to a hospital where she died.
Excessive Heat, Central Phoenix
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Central Phoenix forecast zone
- Deaths
- 1 direct, 0 indirect
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
One direct fatality was reported by the Maricopa County Department of Public Health, with their details, such as age, gender and circumstances unavailable.
Excessive Heat, Aguila Valley
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Aguila Valley forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Northwest Valley
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Northwest Valley forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Buckeye/Avondale
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Buckeye/Avondale forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Cave Creek/New River
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Cave Creek/New River forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Deer Valley
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Deer Valley forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, North Phoenix/Glendale
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- North Phoenix/Glendale forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Scottsdale/Paradise Valley
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Scottsdale/Paradise Valley forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, East Valley
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- East Valley forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, South Mountain/Ahwatukee
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- South Mountain/Ahwatukee forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Southeast Valley/Queen Creek
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Southeast Valley/Queen Creek forecast zone
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
Excessive Heat, Northwest Pinal County
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Northwest Pinal County forecast zone
- Reported by
- County Official
- Coordinates
- 32.904, -111.345 (the zone’s center; the record gives no point)
Excessive Heat, Apache Junction/Gold Canyon
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Apache Junction/Gold Canyon forecast zone
- Reported by
- County Official
- Coordinates
- 32.904, -111.345 (the zone’s center; the record gives no point)
Excessive Heat, Tonto Basin
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Tonto Basin forecast zone
- Reported by
- County Official
- Coordinates
- 33.800, -110.812 (the zone’s center; the record gives no point)
Excessive Heat, Parker Valley
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Parker Valley forecast zone
- Reported by
- County Official
- Coordinates
- 33.729, -113.981 (the zone’s center; the record gives no point)
Excessive Heat, Yuma
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Yuma forecast zone
- Reported by
- County Official
- Coordinates
- 32.769, -113.906 (the zone’s center; the record gives no point)
Excessive Heat, Gila River Valley
- When
- September 4, 10:00 AM MST to 8:00 PM MST
- Where
- Gila River Valley forecast zone
- Reported by
- County Official
- Coordinates
- 32.769, -113.906 (the zone’s center; the record gives no point)
Excessive Heat, Scottsdale/Paradise Valley
- When
- September 5, 12:00 AM MST to 11:59 PM MST
- Where
- Scottsdale/Paradise Valley forecast zone
- Deaths
- 1 direct, 0 indirect
- Reported by
- County Official
- Coordinates
- 33.349, -112.491 (the zone’s center; the record gives no point)
One direct fatality was reported by the Maricopa County Department of Public Health, with their details, such as age, gender and circumstances unavailable.
- Heat
- Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.
- 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.
- Tornado in Illinois, September 3, 20191 injured · EF1 · 1 event
- Tropical Storm and Storm Surge in Florida, September 3, 201911 events
- Marine Thunderstorm Winds in Gulf of Mexico, September 3 to 4, 20199 events
- Damaging Winds in Illinois, September 3, 201956 kt wind · 4 events
- Damaging Winds in Indiana, September 3, 201958 kt wind · 4 events
- Damaging Winds in Wisconsin, September 3, 2019$11,000 · 61 kt wind · 2 events
- Damaging Winds in Wisconsin, September 3, 2019$5,000 · 52 kt wind · 3 events
- Flood and Damaging Wind in Illinois, September 3, 2019$1,000 · 50 kt wind · 3 events
- Excessive Heat in Arizona, September 3 to 4, 20192 events
- Excessive Heat in Nevada, September 3 to 4, 20192 events
- Hail and Damaging Wind in Michigan, September 3, 2019$10,000 · 52 kt wind · 2 events
- Hail and Heavy Rain in Colorado, September 3, 20191 in hail · 2 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 2026-09-30. Each event’s entry at NCEI: 931199, 931200, 931207, 931212, 931213, 931214, 931215, 931216, 931217, 931218, 931220, 931221, 931222, 931223, 931224, 931225, 931226, 931227, 931228, 931210.