Maricopa County, AZ
Alerts
Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.
In effect from Thursday 07/23 11:00 AM MDT – Monday 07/27 9:00 PM MDT
Issued by NWS Phoenix AZ
What
Dangerously hot conditions possible. Afternoon temperatures 105 to 115. Major Heat Risk.
Where
Portions of South-central Arizona.
When
From 10 AM Thursday to 8 PM MST Monday.
Impacts
Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
Additional Details
In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more.
What to Do
An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county officials for more details.
Areas Impacted
- Aguila Valley
- Tonopah Desert
- Gila Bend
- Cave Creek/New River
- New River Mesa
- Rio Verde/Salt River
- Fountain Hills/East Mesa
- Superior
- Northwest Pinal County
- West Pinal County
- Apache Junction/Gold Canyon
- Sonoran Desert Natl Monument
Tips to Stay Safe
An Extreme Heat Warning means that extremely dangerous heat conditions are happening now or soon. You must take precautions to protect yourself and others from extreme heat.
- Stay inside in air conditioning if possible. If you don’t have air conditioning, go to a library, mall, or local cooling center.
- Drink plenty of water to stay hydrated, and wear loose, light-colored clothing.
- Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone.
- Reschedule outdoor activities for a cooler day.
- If you must be outdoors, take longer and more frequent breaks in the shade or air conditioning, and avoid the hottest parts of the day.
- Bring pets indoors if possible. If pets are left outside, make sure they have shade and plenty of cool water.
- Make sure you know the signs of heat-related illness and how to respond.
In effect from Thursday 07/23 11:00 AM MDT – Monday 07/27 9:00 PM MDT
Issued by NWS Phoenix AZ
What
Dangerously hot conditions possible. Afternoon temperatures 110 to 115. Major Heat Risk.
Where
South central Arizona, including the Phoenix metro.
When
From 10 AM Thursday to 8 PM MST Monday.
Impacts
Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
Additional Details
In Maricopa County, Call 2-1-1 to find a free cooling center, transportation, water and more.
What to Do
An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county officials for more details.
Areas Impacted
- Northwest Valley
- Buckeye/Avondale
- Deer Valley
- Central Phoenix
- North Phoenix/Glendale
- Scottsdale/Paradise Valley
- East Valley
- South Mountain/Ahwatukee
- Southeast Valley/Queen Creek
Tips to Stay Safe
An Extreme Heat Warning means that extremely dangerous heat conditions are happening now or soon. You must take precautions to protect yourself and others from extreme heat.
- Stay inside in air conditioning if possible. If you don’t have air conditioning, go to a library, mall, or local cooling center.
- Drink plenty of water to stay hydrated, and wear loose, light-colored clothing.
- Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone.
- Reschedule outdoor activities for a cooler day.
- If you must be outdoors, take longer and more frequent breaks in the shade or air conditioning, and avoid the hottest parts of the day.
- Bring pets indoors if possible. If pets are left outside, make sure they have shade and plenty of cool water.
- Make sure you know the signs of heat-related illness and how to respond.
In effect from Tuesday 07/21 6:45 PM MDT – Tuesday 07/21 9:45 PM MDT
Issued by NWS Phoenix AZ
What
Flooding caused by excessive rainfall is expected.
Where
Gila County in east central Arizona... Maricopa County in south central Arizona...
When
Until 845 PM MST.
Impacts
Minor flooding in low-lying and poor drainage areas. Rises in small streams and normally dry arroyos.
Additional Details
- At 545 PM MST, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.5 and 1.25 inches of rain have fallen. - This includes the following streams and drainages... Tonto Creek, Alder Creek, Salt River, Ash Creek, Pine Creek, Buckhorn Creek, Bronco Creek and Burnt Corral Creek. Additional rainfall amounts up to 0.75 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Roosevelt, Roosevelt Dam and Apache Lake. - http://www.weather.gov/safety/flood
What to Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely.
Areas Impacted
- Gila, AZ
- Maricopa, AZ
Tips to Stay Safe
A Flood Advisory is issued when flooding may cause significant inconvenience, or even become dangerous if you are not careful. Know your risk at home, work and school, and use caution when flooding is expected.
- Be aware of low-lying areas along your travel routes that are most likely to flood.
- Check road conditions before traveling, and obey road closures and barricades.
- Never walk, swim, or drive through flood waters.
- Stay tuned for local weather updates on the situation as it develops.
Briefings
From the Forecaster
Tuesday Storm Outlook
Created by the NWS Phoenix WFO
Scattered thunderstorms will develop over the high terrain of southern Gila County this afternoon resulting in locally heavy rainfall and potential flooding. An outflow boundary will descend towards lower elevations in the evening potentially triggering new storms. There is a 10-25% of storms during the evening in the Phoenix Metro. The main concerns from storms will be gusty winds, local blowing dust, and heavy rain.
Seven-day Weather Risk Overview
The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.
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