With a unique sound and vibration, Wireless Emergency Alerts keep you in the know, wherever you are. 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.
WEA messages are broadcast using radio-like technology from cell towers in, and sometimes around, the actual warning area. 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. A national EAS test was performed on November 11, 2011—the first official "test activation" of a national level Emergency Broadcast since the CONELRAD era.
In addition, Environment Canada runs Weatheradio Canada, which disseminates weather warnings, alerts, and tests on VHF radio. Much as is the case with the "required weekly test" and "required monthly test" of the Emergency Alert System in the US, the Emergency Warning System is tested regularly in Japan (at least on NHK affiliates) with the "piro-piro-piro" digital header and instructions on what to do in the event of an actual earthquake or tsunami warning (and a reassurance that "This Is Only A Test"). Russia: An old system of power-independent wire radio ("radiotochka") still exists for this exact purpose, for performing emergency broadcasts even during blackouts. As of the outbreak of hostilities between Israel and the Gaza Strip on 16 November 2012, "Tseva Adom" has in fact become the generic term for an attack warning in Israel and the "Tseva Adom" system has in fact been officially extended nationwide (example here for a "Tseva Adom" warning outside the Gaza Strip border territories and here for an example of a commercial interrupted by a "Tseva Adom" alert); "Tseva Adom" warnings are also announced on hospital and other major building loudspeaker systems. Aeon Entelechy Evangelion features an Emergency Broadcast broadcast in English and Nazzadi languages. Used dramatically in the Made-for-TV Movie Without Warning, which interrupts the opening of another, ostensibly unrelated TV movie to inform the viewer that a meteor is headed towards Earth.
Radios and TVs air a number of emergency warnings shortly before the attack sequences in The Day After.
A Bill Engvall comedy bit has him on the verge of a Freak Out because of a weather warning in Texas—which turns out to be for an inch of snow. Played for drama in Modern Warfare 2, where the intro sequence to the mission "Of Their Own Accord" is an emergency broadcast system alert containing evacuation instructions for residents of Washington, D.C and its commuter belt. In one episode of Tiny Toon Adventures, Hamton imagines himself being subjected to 60 seconds of the Emergency Broadcast System as a form of Cool and Unusual Punishment. Usually these are geared around various disaster awareness weeks (state tornado drills complete with EAS "test tornado warnings" tend to be around Severe Weather Awareness Week); these are also the last real relics of how Emergency Broadcast systems were tested in the CONELRAD era (full activations as part of state and national "duck and cover" civil defense drills on how to protect one's self against Atomic Hate). Typically, these broadcasts consist of computerized voices reading local weather conditions and forecasts, as well as severe weather warnings in a continuous loop updated after several hoursnote Prior to 1997, these were done by live NWS meteorologists.
One egregious example occurred with the older Emergency Broadcast System in 1971, when a clerk intending to send out a routine test alert to all radio stations in the network accidentally loaded a Telex program tape that included the codeword "hatefulness," which was the code signal to the stations that a nuclear attack or other catastrophic emergency had been confirmed and that they were to immediately issue an on-air alert and suspend operations or remain on the air, but broadcasting only important news or survival information pertaining to the emergency.
The Alberta Emergency Public Warning System was planned after an F5 tornado tore through Edmonton, but was only picked up by all broadcasters after a F3 tornado destroyed a campground at Pine Lake. It's the use of the NOAA weather radio emergency tone, civil defense sirens, and voiceover work to create a very simulated Emergency Broadcast of a nuclear attack. Not knowing it was a test, Dex began solving every emergency he could find to get it to stop before realizing it was just a test. Some weather radio receivers can be activated automatically when severe weather or other emergencies threaten and some higher-end models allow users to filter warnings by geographical area and type, eliminating the problem of irrelevant warnings mentioned in the page intro. While TV and Radio do sound the alert, there isn't a public megaphone system to sound the alarm itself in the city, though anyone using a radio reciever tuned to the SAS frequency will get the signal, as well as some schools and government buildings which are directly connected to the Early Warning System. Of note: the 3-letter code in this video, EAN (short for Emergency Action Notification), is the one that applies if, and only if, a nationwide threat exists that is a big-enough national emergency to warrant immediate shutdown of all non-news broadcasting on all channels.
The string contains specific information as to the type of alert (or test) and the location of the emergency.

Warnings are typically issued by county, though lately the NWS has started to mention specific communities because people in tornado-prone areas got into the habit of ignoring warnings unless they could see or hear the tornado themselves, which lead to a lot of deaths. In Vanuatu, warnings by SMS were invaluable as Cyclone Pam approached, while in the aftermath a combination of surviving and makeshift telecommunications helped people reconnect.
Some disasters, such as the massive earthquake that hit Nepal at the end of April, can be predicted, but not to the degree that decisive event warnings can be issued. The success of alert systems rests on their testing, and the majority of the Caribbean countries, as well as adjacent parts of North and South America, take part in an annual tsunami warning drill.
USGS stream gages quickly provide information used for emergency warnings as well as the long-term data needed to understand flood risks. The Severe alerts from National Weather Service include warnings for flash floods and dust storms. 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. 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.
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.
In some areas prone to certain natural disasters (tornadoes, earthquakes, etc.) there is also a yearly disaster drill conducted with a state civil defense agency (in which a full "test warning" is issued, and which is meant to enable schools, hospitals, and even private homes to do a "dress rehearsal" practice for whatever disaster the "test warning" was for). On occasion, computer glitches or human error resulted in incidents where emergency alerts were issued accidentally. United Kingdom: The Four-Minute Warning, an emergency broadcast only to be used in the case of Atomic Hate. Australia: The Standard Emergency Warning Signal, used primarily in Queensland to warn of cyclones, but now being expanded for bushfires and terror threats in the rest of the country. Israel: The Tseva Adom or "Red Colour" system is an emergency system (including not only emergency broadcasts but sirens and announcements on public speaker systems and even alerts sent to smart phones) used primarily in communities surrounding the Gaza Strip to warn of incoming missile attacks. A general system of sirens and radio and television emergency broadcasts existed in the rest of Israel (before the national rollout of the "Tseva Adom" system) that was similar to the system presently used in South Korea; this has had "live use" including instructions for people to don gas masks and to retreat to safe rooms during the first Gulf War (due to concerns that Iraqi SCUD missiles could have chemical warheads). The premise of the Ed, Edd n Eddy Fan Fic The Ed Of The World is that Ed mistakes a test of the Emergency Broadcast System for a warning that the world will end. PLEASE CONTACT YOUR LOCAL EMERGENCY SERVICES FOR EVACUATION ROUTES AND SURVIVAL PROCEDURES. Gaius Baltar watches emergency broadcasts on his television of the Cylon's pummeling of the Twelve Colonies before a bomb hits their area, and the feeds go to static. The Insane Clown Posse album Bizzar opens with a news broadcast, which is upgraded into a nationwide emergency broadcast in its sister album Bizaar.
The former Kongfrontation attraction at Universal Studios Florida had an Emergency Broadcast System notice appear on the TVs the queue line, notifying everyone to stay indoors due to what was lurking outside. The intro to XCOM: Enemy Unknown, showing the first alien abduction, ends with a shot of many, many dead people, and the sounds of the US emergency broadcast system in the background.
The National Film Board of Canada short The Big Snit takes place during a nuclear war and a TV is shown playing a parody of nuclear attack warnings. 10 seconds or so between warning and quake at best) and to warn for imminent evacuation due to tsunamis. The Sistema de Alerta Sismica (Seismic Alert System) consisting of a network of seismic detectors deployed near the Guerrero and Oaxaca coastline will send an early warning upon detecting a strong earthquake. A similar code, RHW, exists for radiological hazard warning, which specifically refers to when a vehicle transporting radioactive material crashes or otherwise spills such material, particularly when it is _not_ from a nuclear power plant. Later, as alerts began to be disseminated through non-broadcast routes (cable and satellite TV, cellphones, weather radios), the system was again renamed, this time as the Emergency Alert System, or EAS.

The EPWS serves to advise the public of imminent threats such as severe summer weather (tornadoes, thunderstorms, and floods) and civil emergencies, and also broadcasts AMBER Alerts. The guy swigs a beer as the warning tone sounds, then starts to look uncomfortable and sweat, before finally writhing in agony and melting into a skeleton. It's also the only one to have its own dedicated all-clear code, EAT for Emergency Action Termination. TV and radio stations typically simulcast weather radio alerts for their EAS weather warnings. In addition to weather warnings, these stations also broadcast warnings for other civil emergencies such as chemical spills and Amber Alerts, which is why weather radio is called "All Hazards Radio". A Kenyan not-for-profit software company has been at the forefront of mapping conflict and violence around the world, and their systems were used to develop the Nigerian Election Early Warning System (screengrab pictured) for the recent 2015 presidential elections.
It is led by Unesco, the US National Tsunami Warning Center and the Pacific Tsunami Warning Center, and involves dozens of countries and tens of thousands of people.
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.
Emergency broadcasting has also firmly entered the 21st century with Wireless Mobile Alerts, which send weather warnings, Amber Alerts and other emergency information as SMS-like messages to most newer cellphones. Fallout: Equestria - Occupational Hazards features use of the CONELRAD broadcasting system repurposed as a general radio station, while leaving the automated emergency warning systems intact.
Secretary of Education Laura Roslin, aboard a chartered space passenger liner, is in the cockpit as the pilots pick up an emergency broadcast,"Case Orange," designed to go off in case their president and most of the government is believed dead or missing. The Anthrax song "Fight 'Em Til You Can't", which is about a Zombie Apocalypse, opens with a fake emergency broadcast alerting listeners that the bodies of the dead are rising from their graves and attacking the living. The Simpsons: In the episode "Homer Defined," when Homer's inattention to warnings that the core temperature is nearing dangerous levels results in a near meltdown, Channel 5 immediately goes on air with a news flash alerting residents to the situation and that only a couple of minutes remain before a sure nuclear explosion. Hearing an Emergency Broadcast warning of actual danger may lead to Oh Crap!, Mass "Oh, Crap!", the need for one's brown pants to be brought - in that way it may be the ultimate Brown Note.
When Vervunhive is initially attacked, it not only broadcasts warnings on all local media channels, and activates alert sirens, they also ring the church bells in time with the sirens.
The station has no warning script for tornadoes, so when when a tornado touches down in Cincinnati, Les is forced to make do with a Soviet invasion script. 3-letter codes for a watch (almost) always end with the letter A, warnings with the letter W, Emergencies with the letter E, and Statements with the letter S. Subverted in the 2005 The War of the Worlds, when the standard American EBS announcement that it's "only a test", and not "an actual emergency", plays on the radio of the hero's car as he's driving through the decimated countryside. There have been several hacks of various Emergency Broadcast systems - though doing so is highly illegal in most countries (in the sense that doing it will often lead to a severe prison sentence). It was eventually renamed the Emergency Broadcast System when advances in communication and weather radar made it possible for state and local authorities to use it to disseminate information about local emergencies.
Some exceptions (Tornado Warning is TOR and Severe Thunderstorm Warning is SVR) were grandfathered in.
Fake test alert messages were sent out by the warning centres, and then disseminated by broadcasters and agencies in the different countries. Radio stations (but not TV) interrupt their broadcasts with the sirens at 2pm and tell people where to go and what to do in case of emergency (usually assumed to be an attack from North Korea).

3 natural disasters in the caribbean
Table top drills for schools


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