Before the Storm
Flash Floods are the #1 cause of weather-related deaths in the U.S. Please prepare. When a storm is approaching, turn to broadcast media, radio, or visit reliable online resources to receive the latest weather updates and instructions.
Stay Connected For Updates
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Prepare Your Home
- Familiarize yourself with local emergency plans. Know where to go and how to get there should you need to get to higher ground, the highest level of a building, or to evacuate.
- Clean out roof drains or scuppers to prevent accumulation of rain water on the roof.
- Thin out trees and trim down overgrown vegetation.
- Clean out drywells on your property so there is safe place for the water to collect.
- Repair landscaping to ensure water will run away from your building.
- Back up all data in case your computer or servers become damaged.
- Look at installing generators or back up battery systems.
- Bring in outdoor furniture and move important indoor items to the highest possible floor. This will help protect them from flood damage.
- Build or restock your emergency preparedness kit. Include a flashlight, batteries, cash, and first aid supplies.
- Disconnect electrical appliances and don't touch electrical equipment if you are wet or standing in water. You could be electrocuted.
- If instructed, turn off your gas and electricity at the main switch or valve. This helps prevent fires and explosions.
Tips For Drivers
- Do not attempt to drive through a flooded road! The depth of water is not always obvious. The road bed may be washed out under the water, and you could be stranded or trapped.
- Six inches of water can cause most cars to lose control.
- Two feet of rushing water can carry away most vehicles including sport utility vehicles (SUVs) and pick-up trucks.
- Don't drive around barricades. Barricades are there for your protection. Turn around and go the other way.
- Treat non-working or flashing traffic signals at intersections as a four-way stop. Proceed with caution.
- If floodwaters rise around your car but the water is not moving, abandon the car and move to higher ground. Do not leave the car and enter moving water.
- Avoid camping or parking along streams, rivers, and creeks during heavy rainfall. These areas can flood quickly and with little warning. Flood Watch = “Be Aware.” Conditions are right for flooding to occur in your area.
Flood Control District of Maricopa County (FCDMC)
FCDMC website for information about the district's services, current flood control projects, and flood safety guidelines. See also
Maricopa County Emergency Management
Wet weather can result in standing water that can trigger an increase in mosquito populations. Call Maricopa County Vector Control at
602-506-6616 for complaints regarding mosquitoes around standing water. Learn more about
Page Information: Flood Information, Storm Information, Heat Warnings, Monsoon Season
Summer Safety to learn about Summer Fun, how to be Heat Ready, and to learn more about Monsoon Weather