warnings

alarm

Urgent warning signal

• sirenWailing alert device
• evacuationRemoval from danger
• emergencySerious sudden danger

beacon · flashing · bell · horn · whistle · klaxon · buzzer · foghorn · loudspeaker · megaphone

foreboding

Fearful anticipation of harm

• portentSign of future calamity
• omenProphetic indicator
• harbingerOne who foreshadows

foreshadowing · prophecy · presentiment · augury · premonition · red flag · writing on the wall · bad sign · ill omen · dark clouds

bulletin

Brief public announcement

• forecastPrediction of future conditions
• noticeBecome aware of
• announcementPublic declaration of information

update · briefing · alert · guidance · travel advisory · health advisory · weather advisory · public notice · consumer alert · recall notice

tsunami

Seismic sea surge

• earthquakeSeismic ground movement
• volcanoEarth's fiery vent
• landslideMass of earth falling

flood · avalanche · drought · hurricane · tornado · wildfire · storm surge · blizzard · cyclone · typhoon

safety

Freedom from harm

• preventionStopping something before occurring
• vigilanceState of keen awareness
• foresightAbility to anticipate futures

preparedness · safeguard · protective · defensive · readiness · due diligence · risk management · contingency · fail-safe · backup plan

danger

Exposure to harm

• toxicCapable of causing harm
• flammableProne to ignition
• radioactiveEmitting nuclear decay particles

corrosive · explosive · biohazard · chemical · venomous · contamination · asbestos · high voltage · poison · skull and crossbones

• safetysafety helmet, hazard, airbag, alert, occupational safety
• omensomens, omen, portent, portents, signs
• premonitionspremonitions, forebodings, presentiments, forewarnings, omens
• product infoname, brand, price, description, features
• product labelsingredient list, safety labels, nutrition facts, expiration date, product labels
• School consequencesdetention, suspension, expulsion, grades, honor roll