Wireless Emergency Alerts
What Are Wireless Emergency Alerts? They are Weather warnings on the go!
Imagine this: You’re driving down the highway, humming along to your favorite tunes, when the cell phone stowed in your bag suddenly makes a strange noise. To investigate, you take the next exit and safely pull over to check the screen. Good thing you did: Your phone just alerted you to a tornado a few miles away in same county you’re driving through.
Sound plausible? It is. America’s wireless industry is helping to build a Weather-Ready Nation through a nationwide text emergency alert system, called Wireless Emergency Alerts (WEA), which will warn you when weather threatens. Read the rest of the article on NOAA.gov.
1. What are WEA messages?
Wireless Emergency Alerts (WEA) are emergency messages sent by authorized government alerting authorities through your mobile carrier. Government partners include local and state public safety agencies, FEMA, the FCC, the Department of Homeland Security, and the National Weather Service.
2. Why is this important to me?
Alerts received at the right time can help keep you safe during an emergency. With WEA, alerts can be sent to your mobile device when you may be in harm's way, without need to download an app or subscribe to a service.
3. What types of alerts will I receive?
5. How will I know the difference between WEA and a regular text message?
WEA messages include a special tone and vibration, both repeated twice.
6. What types of WEA messages will the National Weather Service send?
You can opt-out of receiving WEA messages for imminent threats and AMBER alerts, but not for Presidential messages. To opt out, please refer to instructions from your wireless carrier or visithttp://www.ctia.org/wea for more information.
Some cell phones allow the users to opt-in and opt-out directly on their devices. These devices differentiate the imminent threat alerts into two categories - "Extreme alerts" and "Severe alerts" as shown in the image below.
The Extreme alerts from the National Weather Service include warnings for tornadoes, extreme winds, hurricanes and typhoons. Tsunami warnings will also become available as Extreme alerts later in 2013. The Severe alerts from National Weather Service include warnings for flash floods, dust storms, blizzards and ice storms. For example, by keeping Extreme alert selected and de-selecting Severe alert, the user would still be capable of receiving Extreme alerts, but would not receive Severe alerts on their cell phone.
18. Why did I receive an alert when there was no warning in effect for my location?
WEA messages are broadcast using radio-like technology from cell towers in, and sometimes around, the actual warning area. Therefore, an alert can reach cell phones outside of the actual warning area depending on the broadcast range of the cell towers which broadcast the alert. This overreach is typically more prevalent in rural areas than in more densely populated cities.
19. How will I receive alerts if I don't have a WEA-capable device?
WEA is one of many ways you can receive emergency notifications. Other sources include NOAA Weather Radio, news media coverage, the Emergency Alert System on radio and TV broadcasts, desktop applications, mobile applications, and other alerting methods offered by local and state public safety agencies. Your best use of WEA is to immediately seek additional information about the imminent threat impacting your area.
Weather Ready Nation - get Equipped!

Other Frequently Asked Questions

- Extreme weather warnings
- Local emergencies requiring evacuation or immediate action
- AMBER Alerts
- Presidential Alerts during a national emergency

- Tsunami Warnings (coming late 2013)
- Tornado and Flash Flood Warnings
- Hurricane, Typhoon, Dust Storm and Extreme Wind Warnings
- Blizzard and Ice Storm Warnings

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