News12 New York
N12 Originals
Numbers & Links
Local
Crime
Weather
Politics
Taxing Long Island
Fair or Mostly Sunny
85°
Local
Crime
Weather
Politics
Taxing Long Island

The federal government will conduct a nationwide emergency alert test via mobile phones and cable TV

The test is slated to start at 2:20 p.m. Eastern Time Wednesday.

Associated Press

Oct 4, 2023, 5:51 AM

Updated

Share:

“THIS IS A TEST": If you have a cellphone or are watching television Wednesday, that message will flash across your screen as the federal government tests its emergency alert system used to tell people about emergencies.

The Integrated Public Alert and Warning System sends out messages via the Emergency Alert System and Wireless Emergency Alerts.

The Emergency Alert System is a national public warning system that's designed to allow the president to speak to the American people within 10 minutes during a national emergency via specific outlets such as radio and television. And Wireless Emergency Alerts are short messages — 360 characters or less — that go to mobile phones to alert their owner to important information.

While these types of alerts are frequently used in targeted areas to alert people in the area to thing like tornadoes, Wednesday's test is being done across the country.

The test is slated to start at 2:20 p.m. Eastern Time Wednesday. Wireless phone customers in the United States whose phones are on will get a message saying: “THIS IS A TEST of the National Wireless Emergency Alert System. No action is needed.” The incoming message will also make a noise and the phone should vibrate.

Customers whose phones are set to the Spanish language will get the message in Spanish.

The test will be conducted over a 30-minute window started at 2:20 p.m., although mobile phone owners would only get the message once. If their phones are turned off at 2:20 p.m. and then turned on in the next 30 minutes, they'll get the message when they turn their phones back on. If they turn their phones on after the 30 minutes have expired they will not get the message.

People watching broadcast or cable television or listening to the radio will hear and see a message lasting one minute that says: “This is a nationwide test of the Emergency Alert System, issued by the Federal Emergency Management Agency, covering the United States from 14:20 to 14:50 hours ET. This is only a test. No action is required by the public."

Federal law requires the systems be tested at least once every three years. The last nationwide test was Aug. 11, 2021.

The test has spurred falsehoods on social media that it's part of a plot to send a signal to cellphones nationwide in order to activate nanoparticles such as graphene oxide that have been introduced into people’s bodies. Experts and FEMA officials have dismissed those claims but some social media say they'll shut off their cellphones Wednesday.

Top Stories

01:30
910jonspaforcibletouching_subclip_subclip_2026-09-10-05-09-03_05-02-06,24

Huntington Station spa employee accused of forcibly touching a woman during a massage

01:49
F P1 PM 1

Summer-like feel today on Long Island; tracking showers over the weekend

01:59
910cecilia_2026-09-10-05-51-31

25 years later, Hauppauge memorial keeps 9/11 heroes' legacy alive

00:43
LIdroneprogramKK_2026-09-10-12-43-00

Nassau police unveil drone equipped with water rescue device

00:35
fraud charges

Owner of Patchogue asbestos removal company charged with workers’ comp insurance fraud

00:21
LIHicksvilleManDeadKK_2026-09-10-12-30-18

Authorities identify Hicksville man killed in Labor Day truck incident

00:25
910LIhofrtsa_2026-09-10-07-44-54

Hofstra union members ratify new contract with university

02:06
0630beWellcosmeticdoctor2_2026-06-30-11-48-21

Next week the sun will set during the 6 o'clock hour. How fast are we losing daylight?

00:28
Sex Abuse Sentence

West Babylon man gets 25 years in prison for sexually abusing child

00:20
Mosquito

Suffolk County confirms season’s second human West Nile case

00:18
fatal crash generic tn

Middle Island man killed in wrong-way Rocky Point crash

00:23
bald eagle

Bald eagle spotted in Malverne family’s backyard

00:32
LISALVADORANSTPS910_2026-09-10-05-39-55

Executive order ending Temporary Protected Status for Salvadorans paused by federal government

01:04
910taxingli_2026-09-10-05-55-14

Scam victims required to pay income taxes on losses under 2017 tax cut legislation

01:42
910LIroadtrip_subclip_2026-09-10-05-39-26_05-26-50,26

Enjoy live performances at Side Street Dive in Patchogue

01:21
925EEpreview_2025-09-25-11-17-51

The East End: Greenport Express Miniature Railroad

01:29
LI 10PM WED_Red Light Camera Lawsuit_ajc_2026-09-09-22-03-12

Suffolk drivers may be eligible for red light camera fee refunds under class action settlement

01:41
Drugged Driving MS 090926_2026-09-09-17-05-57

Suffolk man faces aggravated vehicular homicide charges after work zone crash that killed worker

01:37
LI 10PM WED_Wall of Honor_ajc_2026-09-09-22-07-44

Oyster Bay honors 9/11 victims, adds four names to Wall of Honor

01:22
LI 5PM WED_FDNY Demanding Answers_ajc_2026-09-09-17-08-16

FDNY leaders demand answers as NYC releases 9/11 records

App StoreGoogle Play Store

info

Newsletter

Send Photos/Videos

Contact

About Us

News Team

News 12 New York

follow us

Twitter

Facebook

Instagram

more resources

Optimum Corporate

Optimum Service

Advertise on News 12

Careers

Content Removal Policy

© 2026 N12N, LLC

Privacy Policy

Terms of Service

Ad Choices