The Waukee Brief

The local's guide · Severe weather

Waukee tornado sirens and severe weather: when they sound, how to get alerts, and where to shelter.

Iowa storms have a way of showing up right at dinnertime, and the first spring after you move here, that first siren is genuinely startling. So here is the whole thing in plain English, tuned to Waukee and Dallas County: what the sirens mean, when they are just a test, how to get the warning on your phone, and where to actually go when it counts.

The 30-second version

Do two things now, before the next storm: sign up for Alert Iowa at alert.iowa.gov (Waukee is in Dallas County, and Dallas County residents can also text DALLASIA to 67283), and keep Wireless Emergency Alerts on for your phone. When a siren sounds and it is not the noon-on-the-first-Saturday test, go inside and get low. The sirens are for people caught outdoors; do not rely on hearing one from inside your house.

The sirens

When do Waukee's tornado sirens sound?

Waukee's outdoor warning sirens activate automatically through the WeatherWarn system, and, in line with Dallas County's warning criteria, they go off for two things:

Tornado
A Tornado Warning
The National Weather Service issues a Tornado Warning for the area, or a trained spotter reports a tornado. A tornado is happening or about to.
Extreme wind
A straight-line wind warning with 70+ mph winds
Not every thunderstorm. The sirens sound only when forecast or actual winds reach at least 70 mph, which is tornado-level damage.

There is no all-clear siren in Waukee, so silence does not mean it is over. When you hear them, act, then get your details from a weather app, local TV or radio, or a NOAA Weather Radio.

Is it just a test? Check the day and time.

Waukee tests its sirens at noon on the first Saturday of every month. Testing may be suspended in the winter (December through February), when ice or sub-zero cold could damage the equipment. A siren at noon on the first Saturday is routine. A siren at any other time is not, so treat it as real.

The one thing people get wrong

Can you hear Waukee's tornado sirens inside your house?

Often no, and that is the piece worth burning into memory: the sirens are designed to warn people who are outside, at a ballfield, on the trail, in a parking lot. They were never meant to be heard clearly inside a modern, well-insulated house, especially over a TV or an AC unit, or while you are asleep. If your plan is "we'll hear the siren," you do not have a plan. Get the warning on your phone instead, so it reaches you indoors and overnight.

Get the warning

How do I get tornado warnings on my phone in Waukee?

Do this first
Alert Iowa (Dallas County)
Free. Iowa's official emergency notification system sends tornado, severe thunderstorm, flood, and other warnings. Sign up at alert.iowa.gov, or text DALLASIA to 67283.
Already on
Wireless Emergency Alerts (WEA)
The loud alerts your phone makes for tornado warnings and flash floods, no signup needed. Just make sure they are turned on in your phone's notification settings.
For overnight
NOAA Weather Radio
A dedicated radio that wakes you for a warning even if your phone is silenced or dead. Worth it if you sleep hard through spring.
The source
NWS Des Moines (DMX)
Every watch and warning for Waukee comes from the National Weather Service office in Des Moines. Any good weather app pulls from it.
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Watch vs warning

Tornado watch vs. warning: what's the difference?

People mix these up constantly, and the difference is the whole ballgame:

Watch
Conditions are right. Be ready.
A tornado or severe thunderstorm could form in the next several hours. Keep an eye on the sky and your phone, and think through where you would go. You do not need to shelter yet.
Warning
It is happening. Act now.
A tornado or damaging storm is occurring or imminent for your area. This is when you shelter immediately. Sirens sound on the warning, not the watch.
Where to go

Where to shelter in a tornado

The goal is to put as many walls between you and the outside as possible, on the lowest level:

The other Iowa hazard

Flooding and flash floods

Waukee's bigger everyday risk is often water, not wind. Heavy rain events flood streets and low crossings fast, and the Raccoon River watershed runs just south of town. The rule that saves lives is simple: Turn Around, Don't Drown. It takes only a foot of moving water to float a car, and you cannot see whether the road under it has washed out. Never drive around a barricade or through a flooded street.

Quick answers

Waukee severe weather: FAQ

When do the tornado sirens go off in Waukee?

When the National Weather Service issues a Tornado Warning for the area, or a straight-line wind (severe thunderstorm) warning with winds of 70 mph or more. In Waukee they activate automatically through the WeatherWarn system, and there is no all-clear siren.

When are the Waukee sirens tested?

At noon on the first Saturday of each month, though testing may be suspended in the winter months of December through February to avoid ice or cold damage. A test at that time is routine.

What should I do when I hear a siren?

If it is not the scheduled first-Saturday-at-noon test, go indoors, get to a basement or the lowest interior room away from windows, and check a weather app, local media, or NOAA Weather Radio. The sirens are for people outdoors, so do not wait to hear one from inside.

How do I sign up for weather alerts in Waukee?

Because Waukee is in Dallas County, register for Alert Iowa at alert.iowa.gov, or text DALLASIA to 67283. Keep Wireless Emergency Alerts on for your phone, and consider a NOAA Weather Radio for overnight storms.

Is there an all-clear siren in Waukee?

No. Waukee's sirens do not have an all-clear sound. The sirens may cycle during a warning, so silence does not mean the danger has passed. Wait for the National Weather Service to cancel or let the warning expire, and confirm on a weather app, local media, or NOAA Weather Radio before you come out.

Where should I shelter in a tornado if I don't have a basement?

Go to the lowest floor and get into a small interior room with no windows, such as a bathroom, closet, or center hallway, putting as many walls between you and the outside as possible. Cover up with a mattress, cushions, or a bike or sports helmet. If you live in a mobile or manufactured home, leave before the storm and get to a sturdy building.

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Sources: City of Waukee Outdoor Warning Sirens & Severe Weather page (waukee.org), including the first-Saturday-at-noon test schedule, winter suspension, WeatherWarn activation, and the no-all-clear note; Dallas County Emergency Management outdoor warning siren criteria and Alert Iowa page (dallascountyiowa.gov); Alert Iowa (alert.iowa.gov); and the National Weather Service, Des Moines (DMX). Siren policies and test schedules are set by the city and county and can change, so confirm current details with the City of Waukee and Dallas County Emergency Management. This page is general safety information, not an emergency alert; in an emergency, follow official warnings and call 911.