United States — Air Quality — 13 actual messages

10:23  Air Quality Alert for Saint Louis (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
11:23  Air Quality Alert for Saint Louis (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
12:23  Air Quality Alert for Saint Louis (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
13:23  Air Quality Alert for St. Louis (Metro-east) (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
13:23  Air Quality Alert for Saint Louis (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
14:23  Air Quality Alert for Saint Louis (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
14:23  Air Quality Alert for St. Louis (Metro-east) (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
15:23  Air Quality Alert for St. Louis (Metro-east) (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
15:23  Air Quality Alert for Saint Louis (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
16:23  Air Quality Alert for Saint Louis (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
16:23  Air Quality Alert for St. Louis (Metro-east) (view from source)
AlertMetFuture
Moderate
Likely		AIRNow Program, US Environmental Protection Agency
air-qualityreduce-exertion
⚠️ content.no_instruction_time — instruction does not say by when the protective action should be taken — no deadline and no immediately-class directive.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
20:40  Air Quality Alert issued September 7 at 3:40PM CDT by NWS St Louis MO (view from source)
AlertMetUnknown
Unknown
Unknown		NWS St Louis MO
air-qualityreduce-exertion
⚠️ content.usc_all_unknown — urgency, severity, and certainty all reported as Unknown — using Unknown as a default across all three fields limits alert interpretability.
⚠️ content.local_abbreviations — contains a local abbreviation (AQI) which may be unfamiliar to visitors or newcomers to the hazard area.
⚠️ content.no_instruction_text — CAP <instruction> is empty — the message describes a hazard but tells the reader nothing to do about it.
⚠️ content.no_specific_area_geometry — at least one area lacks both a polygon and a circle — specific geometries allow more precise message delivery and can reduce alert deliveries to people not actually at risk.
22:53  Air Quality Alert issued September 7 at 5:53PM CDT by NWS St Louis MO (view from source)
AlertMetUnknown
Unknown
Unknown		NWS St Louis MO
air-qualityreduce-exertion
⚠️ content.usc_all_unknown — urgency, severity, and certainty all reported as Unknown — using Unknown as a default across all three fields limits alert interpretability.
⚠️ content.local_abbreviations — contains a local abbreviation (AQI) which may be unfamiliar to visitors or newcomers to the hazard area.
⚠️ content.no_instruction_text — CAP <instruction> is empty — the message describes a hazard but tells the reader nothing to do about it.
⚠️ content.no_specific_area_geometry — at least one area lacks both a polygon and a circle — specific geometries allow more precise message delivery and can reduce alert deliveries to people not actually at risk.