ThomasTyphoon blue warning signal means that it may be affected by tropical depression within 24 hours, with an average wind force of more than 6 or gust of more than 7; Or it has been affected by tropical depression, with an average wind force of 6 ~ 7 or gust of 7 ~ 8 and may continue.
Extended data:
Typhoon warning signal is the warning signal used by relevant departments to issue typhoon disaster warning according to relevant laws and regulations. On August 16, 2004, the China Meteorological Administration issued the Trial Measures for the release of early warning signals of sudden meteorological disasters, which divides typhoon early warning signals into four levels: blue, yellow, orange and red, but some provinces and cities classify them according to their own characteristics.
Typhoon warning signal:
1. Typhoon blue warning signal
Typhoon blue warning signal is an early warning of a strong tropical cyclone generated on the tropical ocean. It is the lowest level of typhoon warning (except Guangdong).
2. Typhoon yellow warning signal
The Yellow typhoon warning signal indicates that it may or has been affected by tropical cyclones within 24 hours. The average coastal or land wind force is above force 8, or the gust is above force 10 and may continue.
3. Typhoon orange warning signal
The orange typhoon warning signal indicates that it may or has been affected by tropical cyclones within 12 hours. The average coastal or land wind force is above force 10, or the gust is above force 12 and may continue.
4. Typhoon red warning signal
The typhoon red warning signal indicates that it may or has been affected by tropical cyclones within 6 hours. The average coastal or land wind force is above force 12, or the gust is above force 14 and may continue.
