Macau — 3 actual messages

01:27  雷暴警告信號於 2026年08月20日09時30分發出。 有效時間至 2026年08月20日11時30分。 (view from source)
EN (issuer): Thunderstorm warning signal was issued at 2026-08-20 09:30.It will be valid until 2026-08-20 11:30.
AlertMetImmediate
Severe
Observed		Macao Meteorological and Geophysical Bureau
thunderstormsavoiduse-caution
References: SMG-Weather_TS_2026_083_01
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
⚠️ 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_expires — an <info> block carries no <expires> — CAP makes the element optional, but a receiver given no expiry cannot know when to stop showing the alert. [source: Common Policies and Practices §1.1.8]
01:42  強烈季候風(即黑球)信號於 2026年08月20日09時45分 取消。 (view from source)
EN (issuer): Strong monsoon signal(Black ball) was cancelled at 2026-08-20 09:45.
UpdateMetPast
Moderate
Observed		Macao Meteorological and Geophysical Bureau
References: SMG-Weather_MS_2026_009_07
⚠️ content.no_cancel_in_alert_or_update — cancellations should travel in separate <alert> bodies to avoid confusion: no form of the word "cancel" should appear in the <headline>, <description> or <instruction> of any <info> within an <alert> of any <msgType> other than Cancel.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
⚠️ content.no_instruction_text — CAP <instruction> is empty — the message describes a hazard but tells the reader nothing to do about it.
⚠️ content.no_expires — an <info> block carries no <expires> — CAP makes the element optional, but a receiver given no expiry cannot know when to stop showing the alert. [source: Common Policies and Practices §1.1.8]
02:15  雷暴警告信號於2026年08月20日10時30分取消。 (view from source)
EN (issuer): Thunderstorm warning signal was cancelled at 2026-08-20 10:30.
UpdateMetPast
Severe
Observed		Macao Meteorological and Geophysical Bureau
References: SMG-Weather_TS_2026_083_02
⚠️ content.no_cancel_in_alert_or_update — cancellations should travel in separate <alert> bodies to avoid confusion: no form of the word "cancel" should appear in the <headline>, <description> or <instruction> of any <info> within an <alert> of any <msgType> other than Cancel.
⚠️ content.no_description_explains_effects — description names the hazard but does not explain the effects it will have on people, property or infrastructure.
⚠️ content.no_instruction_text — CAP <instruction> is empty — the message describes a hazard but tells the reader nothing to do about it.
⚠️ content.no_expires — an <info> block carries no <expires> — CAP makes the element optional, but a receiver given no expiry cannot know when to stop showing the alert. [source: Common Policies and Practices §1.1.8]