Alarms and official warnings in Poland — a guide

Polish rules treat an “alarm” and a “warning message” as two different things. An alarm is a signal: it exists to get your attention immediately. A warning message is information: it says what is happening and what to do.

This distinction explains situations that otherwise seem odd — for instance hearing a siren while nobody says why. The siren is an acoustic alarm. Its job is to interrupt what you are doing and send you to look for information. The explanation arrives separately: from radio, television, an app, a municipal website or a text message. Each channel is incomplete on its own, which is why the state deliberately uses several at once.

The regulation of 14 May 2025 defines an acoustic alarm and a visual alarm, and alongside them a set of warning messages carried by different bodies. The table below shows how they differ and what to expect from each.

Acoustic alarm

A modulated siren sound, or a spoken announcement delivered through a public-address device — a siren with a loudspeaker, a megaphone on a service vehicle, a workplace tannoy.

Visual alarm

A yellow equilateral-triangle sign with its base downwards, placed immediately after an acoustic alarm in public space, or shown through image media such as television.

RSO message

A notice in the Regional Warning System mobile app about a declared or cancelled hazard: type and area, recommendations for residents, expected duration. You install it yourself, and it carries the specifics.

Media message

Information published by newspaper editors and website publishers. In practice this is often the fastest way to learn what a signal you just heard is about.

Radio and television message

Audio, visual or audiovisual broadcasts about a hazard being declared and cancelled. This is why a battery radio still makes sense — it works when power and internet do not.

Network operator message

A warning passed on by a mobile public telecommunications operator through its own services.

RCB Alert

An SMS sent at the request of the Government Centre for Security to everyone present in the affected area, on any network. Reserved for genuinely serious situations.

The rules also cover signals that are not addressed to residents at all. The most common is the alarm for a fire-protection unit — how volunteer firefighters are called out. If a siren in your town sounds briefly and distinctively while nobody around looks concerned, that is usually what it is. The exact sounds are described in the next part.

Signals differ by the shape of the sound and its duration, not by loudness. A few minutes spent learning the difference now saves a lot of uncertainty later.

The key distinction is simple: a wavering sound that rises and falls announces an alarm. A steady sound held on one tone for three minutes cancels it. It sounds like a technicality, but it is the only thing a siren can tell you by itself.

Modulated siren sound — 3 minutes

Alarm announced for the civilian population. The regulation requires a modulated sound but does not prescribe its exact pitch, timbre or modulation rate.

Play a sample (15 s)Full length (3:00)Educational simulation — not an official recording

This is only an example, no alarm is in progress.

Sound description (for deaf and hard-of-hearing readers)

Rhythm description: a modulated siren sound repeatedly rises and falls without pauses for three minutes. The sample demonstrates the same pattern for 15 seconds.

The regulation specifies a modulated sound and its duration, but not an exact pitch, timbre or modulation rate. Those features of this simulation only demonstrate the difference between a modulated and a continuous sound.

Educational simulation — not an official recording. The sound is generated locally in your browser; no RCB file is downloaded or played. Its duration and pattern follow the Interior Ministry regulation of 14 May 2025.

Legal basis for the signal

Continuous siren sound — 3 minutes

Alarm cancelled for the civilian population. The regulation requires a continuous sound but does not prescribe its exact pitch or timbre.

Play a sample (12 s)Full length (3:00)Educational simulation — not an official recording

This is only an example, no alarm is in progress.

Sound description (for deaf and hard-of-hearing readers)

Rhythm description: a steady, continuous sound with no modulation or pauses, lasting three minutes. The sample demonstrates that character for 12 seconds.

The regulation specifies a continuous sound and its duration, but not its exact pitch or timbre. The tone used in this simulation is illustrative.

Educational simulation — not an official recording. The sound is generated locally in your browser; no RCB file is downloaded or played. Its duration and pattern follow the Interior Ministry regulation of 14 May 2025.

Legal basis for the signal

Continuous siren sound — 1 minute

Exercise or training alarm. Duration is the only difference from a cancellation, which is exactly why exercises are announced in advance.

Play a sample (12 s)Full length (1:00)Educational simulation — not an official recording

This is only an example, no alarm is in progress.

Sound description (for deaf and hard-of-hearing readers)

Sound description: a steady, unvarying tone with no undulation, lasting one minute.

For the drill and training alarm the regulation specifies only a continuous siren sound lasting one minute. It does not fix the pitch or timbre — in the regulation the duration alone distinguishes it from the all-clear, which is why drills are announced in advance.

Educational simulation — not an official recording. The sound is generated locally in your browser; no RCB file is downloaded or played. Its duration and pattern follow the Interior Ministry regulation of 14 May 2025.

Legal basis for the signal

Three rising-and-falling sounds with 30-second breaks — 3 minutes in total

Alarm for a fire-protection unit. A call-out for firefighters, not an instruction for residents.

Play a sample (15 s)Full length (3:00)Educational simulation — not an official recording

This is only an example, no alarm is in progress.

Sound description (for deaf and hard-of-hearing readers)

Rhythm description: three sections of rising-and-falling sound, separated by two 30-second pauses; the entire signal lasts three minutes.

The regulation specifies three rising-and-falling sounds, 30-second pauses and a total duration of three minutes. It does not state each sound section's length, pitch, timbre or modulation rate. In this simulation, the 120 seconds remaining after two pauses are divided equally into three 40-second sections; this is an illustration, not an official sound reference.

Educational simulation — not an official recording. The sound is generated locally in your browser; no RCB file is downloaded or played. Its duration and pattern follow the Interior Ministry regulation of 14 May 2025.

Legal basis for the signal

The second, equally official form of alarm is the spoken announcement. It is not a siren tone but a voice message — from a megaphone, a siren fitted with a loudspeaker, a school tannoy, or radio and television. Its wording is fixed and repeated three times: “Attention! Attention! Attention! I declare an alarm… for…”, naming the cause or type of hazard and the area. A cancellation follows the same pattern: “Attention! Attention! Attention! I cancel the alarm… for…”. The triple repetition is not decorative — it makes the message understandable through noise, wind or a moment of distraction.

The visual sign is the least known part of the system, and its purpose is simple: it reaches people where sound fails. Someone who is deaf, working in a noisy hall or wearing headphones will not hear a siren, but can see a yellow triangle in public space or on a television screen. Its appearance means an alarm is in force; its removal means the alarm has been cancelled.

One precision is needed here: the regulation describes this sign as a yellow equilateral triangle with its base downwards, and does not specify an exclamation mark or any other pictogram inside it. The graphic above is therefore a schematic based on the legal description, not a reproduction of an official artwork. We would rather not popularise a symbol the rules do not define.

Exercises are a separate matter. Warning systems have to be tested regularly, because a siren that fails on test day will also fail on a real one. Siren exercises are ordered by provincial governors and announced in the media at least 24 hours in advance. So if you read about a test yesterday and hear sirens at the stated time today, that is the expected check rather than an event.

A siren can only be heard locally, and only if you are outdoors or near a window. That is why the most serious warnings also go straight to your phone.

The RCB Alert is an SMS sent by telecoms operators at the request of the Government Centre for Security. Everyone present in the designated area receives it, on any network, whether they live there or are merely passing through. No subscription and no app are needed — which is its greatest strength, because it also reaches people who never thought about warning systems.

• The RCB Alert is used exceptionally: where a direct threat to life or health over a significant area is likely. Its rarity is deliberate — if it arrived weekly, we would stop reading it.
• It is not part of the RSO app. They are two independent channels, even when they cover the same event.
• A genuine RCB Alert contains no link and never asks you to click. If a message contains a link, treat it as an attempted scam: do not click and do not reply.
• The alert carries both a warning and recommendations. Read it to the end — the recommendations are specific and differ between events.
• Doubts can be checked on the official RCB website or its official profiles, and questions sent to alert.rcb@rcb.gov.pl.

Alongside the SMS there is the Regional Warning System. Its app shows hazards being declared and cancelled together with type, area, recommendations and expected duration. It is a good complement: more detailed than an SMS, though it has to be installed beforehand. A quiet day is the right moment to install it for yourself and for older members of the family.

Do not overlook the simplest channels. Radio and television are required to carry messages about hazards being declared and cancelled, and local radio is often the most useful of all, because it talks about your municipality rather than the whole country. A battery receiver costs little and works when the power is out and the mobile network is congested — precisely when it is needed.

We deliberately avoid a single list of steps for everything, because such lists mislead. Instead, here is an order of thinking that holds regardless of the hazard.

First, establish what the signal is about. The sound alone does not say whether this is air contamination, a violent storm, an industrial failure or something else, and each calls for different behaviour. Turn on radio or television, open RSO, check your municipal or provincial authority website, and read the whole message including the recommendations — those are the most important part.

Second, follow the recommendation that fits this hazard. The popular advice to “get indoors and close the windows” makes sense for airborne contamination or an outdoor threat, but can be actively harmful when an evacuation has been ordered, when the danger is in the building itself, or when water is rising into ground floors. Acting on the message beats acting on reflex.

Third, reduce your own footprint on the situation: keep access roads clear, do not drive off “just in case”, do not tie up emergency lines, and do not forward unverified claims. Less chaos means faster work for the people who have to get through.

Fourth, where it is safe, look after others: the neighbour who may not have heard the signal, an older person nearby, someone alone with a small child. A knock on the door is sometimes more effective than the whole warning system.

Finally, about 112. It is a reporting number, not an information line — it exists for a genuine threat to life, health, property or safety. Asking “why is the siren sounding?” occupies a line someone else needs for an ambulance. If you do call because something is seriously wrong, state the location, what happened, how many people are affected and your phone number, and let the dispatcher end the call.

Home is where most people will be when a warning arrives. A few decisions taken in advance mean you do not have to take them in a hurry.

Think calmly about which room in your home is the safest: usually one without large windows, closer to the centre of the building and away from external walls. In a block of flats that is often the hallway or bathroom; in a house, frequently a lower floor. This is not about building a shelter — it is about not having to wonder where to go.

Keep in one place everyone knows the things that are hardest to find under stress: a torch, a battery radio, a power bank, spare batteries, a first-aid kit, copies of documents, some cash and a list of important numbers written on paper. Phones run flat and get lost; paper needs no electricity.

Closing windows, sealing doors and switching off ventilation or air conditioning is the standard recommendation for airborne contamination — but apply it when authorities say so. For heat, a fire inside the building or a gas failure, the right actions are different and sometimes the opposite. If a message mentions smoke or chemicals, move down from upper floors only if you have not been told to stay put.

One small practical thing that changes a lot: make sure everyone at home knows where the main water and gas valves and the fuse box are, and how to shut them off. That knowledge is useful well beyond emergencies, in any ordinary breakdown.

Away from home you control your surroundings less, but you can move more easily. It helps to know what to use and what to avoid.

Outdoors, start by stopping what you are doing and moving away from large panes of glass, shopfronts, scaffolding, trees and anything that could fall. If the message recommends shelter, go into the nearest solid building — a shop, an office or a stairwell beats a bus shelter. If an evacuation has been ordered, follow the designated route even when it looks longer; routes are chosen to avoid the affected area.

At work or at school, internal procedures and named people are in charge. Follow their instructions even if you know a “better” way out — those procedures account for how many people there are, which exits are usable and where the assembly point is. If you work in noise or wear headphones, agree with colleagues who will tell you when something happens.

In a car, stop safely without blocking the road — especially not at junctions, entrances or lanes emergency vehicles may use. Turn on the radio; it keeps working when the mobile network is congested. Do not turn where it is prohibited and do not drive into the warned area, even if it is your usual way home. A car offers poor protection against contamination and falling debris, so when the message recommends sheltering in a building, it is better to leave the vehicle and go inside.

On public transport or a train, listen to the crew. Staff receive information through service channels and know whether it is safer to stay on board or to get off. Opening doors yourself or stepping onto the track can be more dangerous than the event itself.

These are opposite decisions, and they are not made by intuition. They are made by whoever knows the nature of the hazard — the authorities and services.

Sheltering in place makes sense when the danger is outside and moving would increase your risk: a chemical release, a violent weather event, a risk from debris. Evacuation makes sense when the danger is where you are: fire, flooding, risk of collapse, or a hazard that will build over hours.

So in a message, look for the specific instruction rather than the general tone: “stay indoors”, “leave the area”, “do not approach…”, “travel via…”. If no instruction is given, it is reasonable to limit your movement and wait for the next update rather than decide on behalf of the services.

If you need shelter without detailed guidance, choose the lowest interior part of a solid building, away from windows and external walls. This is a general rule with simple logic behind it: more walls and less glass between you and the hazard.

We deliberately publish no shelter map. In Poland, records of shelter locations are held by the municipality and the State Fire Service, and unverified maps circulating online can send people into basements that were never intended for the purpose. If you want to know how this looks where you live, the right moment to ask your municipal office is now, not during an event.

If you do evacuate, take documents, medicines, a phone and charger, some water and warm clothing; leave the rest. Lock up, but do not go back for possessions if you were told to leave immediately. If you drive somewhere else, tell your family where you are heading.

Three days is an arbitrary but sensible measure: roughly how long it takes to restore basic services or for help to reach a wider area.

This is not about stockpiling for years or making one big purchase. The easiest way is to build the kit gradually during ordinary shopping and use it in rotation, so nothing expires. A kit you forget about is worth very little.

• Water: several litres per person per day is the usual planning figure, counting cooking and hygiene. Water is the hardest thing to substitute.
• Food that needs no cooking or refrigeration: tinned goods, instant grains, nuts, dried fruit, and something children will actually eat.
• Regular medication for several days ahead, plus a basic first-aid kit and dressings.
• A torch, spare batteries, a power bank, a car charger and a battery radio.
• Hygiene supplies, bin bags, wet wipes and hand sanitiser.
• Warm clothing, a blanket and comfortable shoes — an event can start in summer heat and last into the night.
• Cash in small denominations, because card terminals and cash machines depend on power and connectivity.
• Copies of documents, a paper list of phone numbers and spare keys.
• Pet supplies: food, water, lead, carrier and health records.

A household plan matters just as much as the kit. Agree two meeting points: one near home, one outside the area in case returning is impossible. Name one contact person who lives in another town — during a local event it is often easier to reach someone far away than someone on the next street. Agree to use short text messages, which get through when voice capacity runs out.

Go through the plan occasionally, calmly, around the table. Ten minutes of conversation means nobody has to work out where to go or whom to call when it matters.

This part takes the most imagination, because standard advice is written for a healthy, independent person with a charged phone.

Talk to children plainly and without drama: what is happening, what we are doing now, and when we will know more. A child who understands the next step is calmer than a child who senses tension and gets no explanation. It helps if they know their full name, address and a caregiver's phone number — including written on a card in their backpack. If your children are at school or nursery, find out in advance how the school informs parents and where children are collected; driving to fetch them against official advice can be worse than waiting.

Older relatives are often less at home with apps and may not hear sirens well. Agree that you will call or text in such situations, and check that they have a charged phone, enough medication and a radio. Arranging with a neighbour who will check the flat next door also works well.

For people with disabilities, plan concretely: medication and medical records, power for equipment (oxygen concentrators, pumps, electric wheelchairs) and spare batteries, a means of alternative communication, and one or two support people who know how to help. A siren will not warn a deaf person — a phone notification, a vibration, the yellow sign or another human being will. A visual sign will not warn a blind person. Do not separate anyone from essential equipment or from an assistance dog; an assistance dog is not a pet but part of that person's independence.

Plan for pets in advance, because they are often the reason people return to a dangerous place. A carrier kept somewhere reachable, a lead, food, water, records and an agreement on who takes which animal solve most of the problem. Check too whether the place you might stay accepts animals.

The end of a sound is not the end of an event. Knowing the difference prevents going outside too early.

A siren sounds for three minutes and stops — including while the hazard continues. Cancellation is a separate, deliberately transmitted signal: a continuous sound for three minutes, or a spoken announcement repeated three times, “Attention! Attention! Attention! I cancel the alarm… for…”. In visual terms, cancellation means the yellow triangle is removed.

Keep reading the messages after a cancellation. They often carry return guidance: whether you can air the flat, whether tap water is drinkable, whether an area can be entered, what to do with food left outside. Silence settles none of that.

Then check on family and neighbours, avoid damaged buildings, downed cables and flooded basements, and report genuine hazards to the services. Documenting damage for an insurer makes sense only once it is safe.

Tests deserve their own mention. Siren checks are necessary and need not be unsettling when you know they are coming: a provincial governor orders them and the media carry the notice at least a day ahead. If you hear a siren and recall no announcement, simply check the official messages — it takes a moment and settles the question.

In tense situations false messages travel faster than true ones, because they are more dramatic. A few simple habits are enough not to be swept along.

Start by asking where the message came from. Official channels are gov.pl websites, the RSO app, announcements from provincial and municipal authorities, the Police and the State Fire Service, public radio and television, and the RCB Alert. A screenshot forwarded by a friend is not a source — it is a copy of something whose origin you do not know.

• Check the date and the area. Many “warnings” are genuine messages from months ago, reattached to today's situation or to a different region.
• Compare the content with at least one relevant authority channel. If it appears nowhere else, that is a serious warning sign.
• Beware of messages imitating the RCB Alert. A genuine alert contains no links and no request to click; a link is the classic sign of a scam.
• Watch the language. Official messages describe the hazard and recommendations; they do not frighten, do not urge immediate sharing and do not promise “information the media are hiding”.
• Do not forward what you have not confirmed. Sharing “just in case” genuinely increases the confusion.

Finally, the point most often confused: 112 is not for verifying rumours, checking why a siren sounded or asking about the forecast. It is a reporting number for a real threat to life, health, property or safety. When you do need to call, speak calmly and concretely: where, what happened, how many people are affected, your phone number. The dispatcher may ask questions that seem unnecessary — they serve to send the right help.

One note about this site: THRESHOLD is an analytical project, not an official warning system. The absence of information on our pages never means there is no danger. On matters of safety, the state channels listed above are what count.