Warning Signals
Warning Signals
Learn the different warning sirens and what actions to take
Public Service Announcement (PSA)
highSound
7 seconds on, 14 seconds off
Duration
2 minutes
Official recording, check your volume before playing.
Siren sounds for 7 seconds, followed by 14 seconds of silence. The pattern repeats for 2 minutes.
What to do
Go indoors, close all windows and doors and, if possible, switch off the ventilation. Listen to Sveriges Radio P4 for more information.
Emergency Alarm
criticalSound
30 seconds on, 15 seconds off
Duration
5 minutes
Official recording, check your volume before playing.
The siren sounds for 30 seconds, followed by 15 seconds of silence. The pattern is repeated for 5 minutes.
What to do
Go indoors. Listen to Sveriges Radio P4. An emergency alarm means that the entire country is in the highest state of alert. If you are a conscript or civil conscript, go immediately to the place given in your wartime placement order. If your wartime placement is at your workplace, follow your employer's instructions.
Air Raid Warning
criticalSound
Short signals
Duration
1 minute
Official recording, check your volume before playing.
This siren consists of short bursts, which sound for 1 minute. MCF: 2 seconds of sound and 2 seconds of silence for one minute.
What to do
Take cover immediately, for example, in a civil defence shelter, cellar or other protective structure. If you cannot reach shelter, it is better to be indoors than outdoors, preferably in a room without windows.
All Clear
mediumSound
One continuous signal
Duration
30 seconds
Official recording, check your volume before playing.
A long, uninterrupted siren lasting 30 seconds.
What to do
Danger has passed. Exit shelter and help injured people.
Outdoor warning, “Hesa Fredrik”
The siren is tested on the first non-holiday Monday in March, June, September and December at 3:00 pm. During the test the PSA signal sounds at 3:00 pm and the all clear at 3:05 pm (MCF).
SE-Alert is a complementary warning system sent as a cell broadcast to phones in an area. It does not replace the outdoor sirens or Sveriges Radio P4 (MCF).