What weather warning signals do you know (more than 10 are enough)
Haze early warning signal - it may be or has been affected by severe haze weather within 12 hours
Fire danger early warning signal - the air will be dry in the next 24 hours, relative humidity ≤ 50%, easy to A fire breaks out.
Hail warning signal - hail may or has been affected within 2 hours.
Thunder and lightning warning signal - it may be or has been affected by lightning within 2 hours.
Drought warning signal - the accumulated rainfall for three consecutive months is less than the same period in history (30% less in flood season and 50% less in non-flood season) and the drought will continue.
Dense fog warning signal——
Yellow: It may be or has been affected by dense fog within 12 hours, and visibility is reduced to less than 500 meters.
Orange: It may be or has been affected by dense fog within 6 hours, with visibility reduced to less than 200 meters.
Red: It may be or has been affected by dense fog within 2 hours, with visibility reduced to less than 50 meters.
Strong wind warning signal——
Blue: It may or has been affected by strong winds within 6 hours, with average wind strength above level 6.
Yellow: It may or has been affected by strong winds within 6 hours, with average wind strength above level 8.
Orange: It may or has been affected by strong winds within 2 hours, with average wind strength above level 10.
Red: It may or has been affected by strong winds within 2 hours, with average wind strength above level 12.
Cold warning signal——
Yellow: It may be or has been affected by cold air within 24 hours, and the minimum temperature drops below 10℃.
Orange: It may or has been affected by cold air within 24 hours, and the minimum temperature drops below 5℃. .
Red: It may or has been affected by cold air within 24 hours, and the minimum temperature drops below 0℃.
High temperature warning signal——
Yellow: It may or has been affected by warm air within 24 hours, and the maximum temperature rises to above 35℃.
Orange: It may or has been affected by warm air within 24 hours, and the maximum temperature rises to above 37℃.
Red: It may or has been affected by warm air within 24 hours, and the maximum temperature rises to above 40℃.
Heavy rain warning signal——
Yellow: May be affected or has been affected by heavy rain within 6 hours
Orange: May be affected or has been affected by heavy rain within 3 hours, rainfall Measure more than 50 mm.
Red: It may or has been affected by heavy rain within 3 hours, with a rainfall of more than 100 mm.
Typhoon warning signal——
White: May be affected by tropical cyclone within 48 hours.
Blue: It may or has been affected by tropical cyclones within 24 hours, with average wind strength above level 6.
Yellow: It may or has been affected by tropical cyclones within 24 hours, with average wind strength above level 8.
Orange: It may or has been affected by a tropical cyclone within 24 hours, with average wind strength above level 8.
Red: It may or has been affected by a tropical cyclone within 6 hours, with average wind strength above level 12.