Early warning system

[9][10][11] Early warning systems could be developed and used to prevent and mitigate pandemics, e.g. before they spillover from other animals to humans, and disease outbreaks.

[14] European countries have also seen early warning systems help communities adapt to drought, heat waves, disease, fire, and other related effects of climate change.

[15] Similarly the WHO recommends early warning systems to prevent increases in heatwave related morbidity and disease outbreaks.

[17] A large number of chemical substances (approximately 350,000)[18] have been created and used without full understanding of the hazards and risks that they each pose.

The Environment Agency in England have set up a National scale Prioritisation and Early Warning System (PEWS) for contaminants of emerging concern.

[21][22] However, early warning systems can be used to detect a wide range of events, such as vehicular collisions, missile launches, disease outbreaks, and so forth.

A HSS Engineering TWS 295 electronic sirens warning Civil Defense siren.
An animation detailing how earthquake warning systems work: When P waves are detected, the readings are analyzed immediately, and, if needed, the warning information is distributed to advanced users and cell phones , radio, television, sirens , and PA systems / fire alarm systems before the arrival of S waves .
EWS Observer Controller Model and the Subsystem