SCDF will sound “Important Message” signal nation-wide on Friday, Sep. 15

Don't panic, just turn on your radios.

By Zhangxin Zheng | September 10, 2017

The Singapore Civil Defence Force (SCDF) informed the public via Facebook that they will be sounding the “Important Message” signal on Friday, Sep. 15, at 12.05pm:

For your convenience, here’s the announcement:

Do not be alarmed. On Friday, 15 September 2017 at 12.05pm, SCDF will be sounding the “Important Message” signal through the island-wide Public Warning System (PWS) sirens and the SGSecure Mobile App.

Tune in to any local radio station for a brief message on the PWS immediately after hearing the signal.

You can also find out more about the PWS by visiting

#ANationofLifesavers #CivilDefence

What is the Public Warning System (PWS)?

The Public Warning System (PWS) was installed all over Singapore by the SCDF.

It’s an islandwide network of more than 2,000 sirens installed at strategic points that include rooftops and certain grounds.

There are four different signals:

  1. the alarm signal,
  2. the all-clear signal,
  3. the important message signal, and
  4. the chime test signal — which you hear at noon on the first of every month.

Each serves a different purpose such as to warn people of an impending danger or to alert people to tune in to local FM radio stations for an important message broadcast, for instance.

If you’re not too sure how the “important message signal” sounds like:

Screenshot from SCDF post

Or this might be more useful, starting from 0:20:

But we’re sure it’ll be loud enough for you to recognise it on Friday.

Don’t forget to turn on your radios at 12.05pm!

Top photo edited from SCDF

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About Zhangxin Zheng

Zhangxin’s favourite pastime is singing Mulan’s soundtrack in the mangrove forests. She hopes to perfect the art of napping in a hammock in the mangroves without being drowned by rising sea levels.

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