With a unique sound and vibration, Wireless Emergency Alerts keep you in the know, wherever you are.
If you travel into a threat area after an alert is first sent, your WEA-capable device will receive the message when you enter the area. You can opt-out of receiving WEA messages for imminent threats and AMBER alerts, but not for Presidential messages. The NWS pushes our suite of warnings, advisories, and watches to a national collection point called the Integrated Public Alert and Warning System (IPAWS) The NWS specially marks our most critical NWS alerts for WEA distribution, so that when they reach IPAWS, they are pushed to commercial wireless carriers who broadcast the alert from cell towers in the threat area to your cell phone. Last we heard of the federal government's Wireless Emergency Alert system, only Sprint had signed on to deliver the SMS warnings. The Severe alerts from National Weather Service include warnings for flash floods and dust storms. IPAWS also serves as collection point for non-weather alerts, such as civil and child abduction emergency messages which are issued by other emergency authorities. We don't need a top-down system to suddenly tell us what we already learned an hour and a half ago.
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. After the World Trade Center was hit, a thousand radio and TV stations broadcast information about the attack with speed and thoroughness that federal bureaucrats could never match. As ABC News explained in November, when Sandy spurred a similar (if seemingly more justified) emergency bulletin, the discrepancy is merely a matter of which phones have been outfitted by their carriers to display the alerts. The notifications will be on by default, but iOS 6 beta offers the possibility to turn off the AMBER alerts or the Emergency alerts. WEA messages are broadcast using radio-like technology from cell towers in, and sometimes around, the actual warning area.
Wireless Emergency Alerts will be used to notify people in a targeted area about nearby emergencies and actions they should take, such as evacuating or staying indoors. The WEA system was developed and is managed by FEMA, the Federal Communications Commission, and the major wireless companies.

Radio is often the medium of choice during emergencies, and now the FEDERAL EMERGENCY MANAGEMENT AGENCY is asking radio and TV to help spread the word via PSAs about its wireless emergency alert system. Most cellphones people purchased in the last two years are capable of receiving the alerts.
Data strongly recommend that iodine meals and water isolated, in case you have to face a emergency broadcast system cell phone horde of undead. Wireless Emergency Alerts (WEA) are emergency messages sent by authorized government alerting authorities through your mobile carrier.
The Extreme alerts from the National Weather Service include warnings for tsunamis, tornadoes, extreme winds, hurricanes and typhoons.
FEMA has produced Public Service Announcements that demonstrate how wireless alerts save lives.
The NWS pushes our suite of warnings, advisories, and watches to a national collection pointcalled the Integrated Public Alert and Warning System (IPAWS) The NWS specially marks our most critical NWS alerts for WEA distribution, so that when they reach IPAWS, they are pushed to commercial wireless carriers who broadcast the alert from cell towers in the threat area to your cell phone.
In 1951, the federal government created the emergency broadcast system, CONELRAD, to warn us in the event of a nuclear attack by the Soviet Union. 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. The alerts are sent via the Wireless Emergency Alert system, developed by the FCC and FEMA and implemented starting in April 2012.
Using a "point-to-multipoint system" that targets at-risk subscribers, the National Weather Service, FEMA, FCC and Department of Homeland Security-backed initiative works by sending location-based messages of 90 characters or less to nearby handsets in the event of an imminent meteorological threat. The mostly opt-out service will also accommodate AMBER and Presidential alerts, although you won't have that flexibility for missives sent from our head of state.
Most San Diegans are familiar with wireless alerts after the National Center for Missing and Exploited children used the WEA system last month to issue an Amber Alert in the Hannah Anderson abduction case.
Due to the fact that the system relies on tower location, the notifications will come straight to you without the need to sign up for alerts, even if you are from Paris and you are on vacation in L.A. They will contain basic information about the emergency, actions people should take to protect themselves, and where people can get more information.

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.
WEA use radio technology to broadcast the alert from cell towers to mobile devices in the area of the threat. 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.
The warning system, mandatory for all TV and radio stations and cell phone services, costs hundreds of millions (they won't give us the exact number-but "modernizing" it for cell phones alone cost $106 million). Reactions on social networks and in the newsroom where I'm sitting right now suggest the alert's most immediate effect was to make those who got it wonder why they did and those who didn't get it wonder why they didn't.
County officials announced Monday they plan to use the Wireless Emergency Alert system to reach cell phones during emergencies.
The system relies on Broadcast SMS to send weather threats and AMBER alerts on smartphones.
During Hurricane Sandy, twelve hours after the storm began, and long after everyone in my house was hunkered down to ride it out, some people received an emergency alert text from the government on their cell phones. This week, the Office of Emergency Services launched a campaign to educate the public about the importance of Wireless Emergency Alerts with a public service announcement that will run on several local television stations in the coming weeks (watch below).
If you live along the Northeastern Seaboard, there's a good chance your mobile phone buzzed or beeped Thursday afternoon with a text alert like the one shown at left. The alerts seem like a great idea in theory, although today's message wasn't exactly overflowing with actionable intel. That means tourists, residents and people new to the area like students or members of the military can get notifications on their cell phones, even if they never sign up to get emergency calls with AlertSanDiego. Cell towers in a targeted emergency area broadcast the alert directly to cellphones, and phones capable of receiving the transmission in that area will get it.

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