How Many Levels Are There in Typhoon Warning Signals? What Do Blue, Yellow, Orange, and Red Mean?
TyphoonSays·防御问答 · Early warning signals · 更新 at 2026-07-16
Four-Color Warnings: The "Traffic Lights" Before a Typhoon
In China, typhoon warning signals are divided into four levels, ranging from low to high, represented by blue, yellow, orange, and red. Much like traffic lights, the deeper the color, the stronger the wind and rain impacts brought by the typhoon, the higher the danger level, and the more robust the defensive measures we need to take. This standard is formulated based on the national standard "Tropical Cyclone Grades" issued by the China Meteorological Administration (CMA), aiming to help the public quickly assess risk levels. Although specific issuance thresholds may vary slightly across different regions due to geographical environments, the overall logic remains consistent: from "Be Alert" to "Defend," then to "Emergency Defense," and finally "Special Emergency Defense." Understanding the meanings of these four colors allows us to remain calm when a typhoon approaches, ensuring we are well-informed and act appropriately.
Blue, Yellow, Orange, Red: Specific Meanings and Response Guidelines
Blue Warning is the lowest level, typically indicating that tropical cyclone impacts are possible within 24 hours, with average winds reaching force 6 or above, or gusts reaching force 8 or above. At this stage, the typhoon may still be at a considerable distance, but one should not let their guard down. Residents are advised to monitor the latest meteorological information, check whether windows and doors are secure, and bring in items prone to falling from balconies, such as flower pots and laundry.
Yellow Warning indicates that tropical cyclone impacts are possible within 24 hours, with average winds reaching force 8 or above, or gusts reaching force 10 or above. Wind and rain intensify significantly, posing potential hazards from outdoor billboards and trees. At this time, outdoor activities should be minimized, avoid staying near temporary structures, and coastal and water-based operations must cease.
Orange Warning means that tropical cyclone impacts are possible within 12 hours, with average winds reaching force 10 or above, or gusts reaching force 12 or above. This is a strong alert signal, with significantly increased destructive power from wind and rain. Residents in dangerous areas are advised to evacuate to safe locations. Kindergartens, nurseries, and primary and secondary schools will usually suspend classes. Please note that specific regulations regarding school and work suspensions may vary by location; please refer to the latest notifications issued by local governments and education departments.
Red Warning is the highest level, indicating that tropical cyclone impacts are possible or already occurring within 6 hours, with average winds reaching force 12 or above, or gusts reaching force 14 or above. At this stage, the typhoon's power is immense and can easily cause severe disasters. Except for special industries, general recommendations include stopping work, business operations, markets, and classes. Residents should stay in the safest room indoors, away from windows, and must not go out arbitrarily, prioritizing life safety above all. Similarly, specific arrangements for work and school suspensions may vary by region; please refer to local government announcements.
Scientific Defense, Safety First
When facing a typhoon, warning signals are only references; actual actions are key. Regardless of the warning level, staying calm, stocking up on necessary food and drinking water, and keeping mobile phones charged are basic preparations. When receiving high-level warnings, strictly follow local government guidelines and do not act on blind confidence or take unnecessary risks. Typhoon paths are variable, and intensity can suddenly increase, making it crucial to dynamically monitor official information. Real-time typhoon tracks can be queried at TaifengSays (taifengshuo.com)
This article is typhoonsay's original copy content, and the local policy standards are based on the local government's latest release.