Traditional Culture Encyclopedia - Weather inquiry - What's urgent about the weather warning symbol!
What's urgent about the weather warning symbol!
Typhoon warning signal (level 5)
Level 1 white: tropical cyclones may affect the local area within 48 hours.
Secondary green: tropical cyclones may or have affected the local area within 24 hours, and the average wind power can reach 6~7.
Yellow level 3: tropical cyclones may or have affected the local area within 12 hours, and the average wind power can reach more than 8.
Red level 4: tropical cyclone 12 hours may or has affected the local area, and the average wind power can reach more than 10.
Grade 5 black: within 12 hours, tropical cyclones may or have affected the local area, and the average wind force is above 12.
Rainstorm warning signal (level 3)
Huang Xian: Within 6 hours, there was heavy rain in the local area.
Red 2: In the past three hours, the rainfall in some areas has reached more than 50 mm, and the rainfall may continue.
Black 3: In the past 3 hours, the rainfall in some areas reached 100 mm or more, and the rainfall may continue.
Cold warning signal (level 4)
First-class green: affected by the invasion of cold air, the local temperature will drop by more than 10℃ in the next 24 hours.
Secondary yellow: affected by the invasion of cold air, the local minimum temperature will or has dropped below 5℃ within 24 hours.
Red Ⅲ: Affected by the invasion of cold air, the local minimum temperature will or has dropped below 0℃ within 24 hours.
Grade 4 black: due to the invasion of cold air, the local minimum temperature will or has dropped below -5℃ within 24 hours.
High temperature warning signal (level 2)
First yellow: the local maximum temperature will or has risen above 35℃ within 24 hours.
Secondary red: the local maximum temperature will or has risen above 38℃ within 24 hours.
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