Skip to content

Local briefings: Arizona Department of Emergency Management. Listed by USA.gov.

Hazard · Cold snaps

Freeze and broken pipes

Arizona still freezes. A burst pipe at 3 a.m. is a water emergency and a shelter emergency together.

Federal steps in this chapter do not change by state. Local orders for Arizona come from Arizona Department of Emergency Management.

5 min read · Updated October 2026

People first, then pipes

Ready.gov’s winter page is about staying warm without poisoning yourself. Layers, a hat, a closed interior room, and dry clothes matter more than a heroic heater. Never use a generator, grill, camp stove, or charcoal indoors or in the garage. Never use a gas oven as a heater. Carbon monoxide and house fires follow those shortcuts. Space heaters need three feet of clearance and a shutoff when you sleep, unless the maker designed it for something else and you follow that manual.

Know who in the family gets cold faster: infants, older adults, anyone with poor circulation. A freeze warning is a check-on-neighbors day even in the desert.

Pipes

Before a hard freeze, open cabinet doors on exterior walls so room air reaches plumbing, disconnect hoses, and cover hose bibs. Let a faucet drip if your water utility or Ready.gov’s winter guidance recommends it for your type of house. Know the main shutoff so a split pipe does not run all night. If a pipe bursts, shut the water off, shut off the water heater’s power or gas if you can do that safely, and call a plumber. Do not stand in water near electrical devices.

Checklist

Checks stay in this browser.

Sources

Public pages this chapter leans on. They win if anything here is out of date.

Keep going

All guides

Not a substitute for instructions from fire, police, public health, or the utility. If you are in danger now, call 911.