China News Service, April 12. According to the website of the China Meteorological Administration, a few days ago, the China Meteorological Administration started the optimization and adjustment of the early warning signals of meteorological disasters (heavy rain). Early warning signal, the 1-hour rain intensity is included in the rainstorm warning signal standard, and the affected area is as fine as the township (town, street).
On April 7, the China Meteorological Administration launched the optimization and adjustment of early warning signals for meteorological disasters (heavy rain). Through extensive research and in-depth research, a new standard for early warning signals for heavy rain will be established, and 14 pilot counties (cities, districts) will be selected to carry out localized release pilots. Work.
After the adjustment, meteorological departments at all levels will increase the thunderstorm (storm) and gale warning signals according to the actual local conditions, and incorporate the 1-hour rain intensity into the standard of rainstorm warning signals to further improve the standardization and pertinence of the content of the warning signals.
The meteorological department will conduct a wide-ranging investigation through multiple channels on the current warning signal release standards and adjustments.
The meteorological bureaus of all provinces (autonomous regions and municipalities directly under the Central Government) will carry out local multi-temporal and spatial scale precipitation and climate characteristics analysis, strengthen the application of phased results of the comprehensive meteorological disaster risk census, and complete the localized revision of rainstorm warning signal levels, thresholds, defense guidelines, and release terms. Revised plans for zoning in different climatic contexts in the province.
The China Meteorological Administration will select two counties (cities and districts) in seven provinces including Liaoning, Zhejiang, Anhui, Hunan, Guangdong, Sichuan, and Shaanxi, respectively, to carry out the pilot work of localized release of early warning signals based on the new standard, and provide early warning signals for the whole country. Business optimization and adjustment provide model experience that can be used for reference and promotion.
Short-duration heavy precipitation may cause various disasters such as urban waterlogging, mountain torrents, geological disasters, and small and medium-sized river floods.
The meteorological departments of all provinces (autonomous regions and municipalities directly under the Central Government) will incorporate the 1-hour rain intensity standard into the revised standard for rainstorm warning signals of all levels based on the local weather and climate characteristics.
Local meteorological departments will also increase thunderstorm (storm) and gale warning signals according to local conditions, including lightning, strong convective weather, short-term strong winds, and short-term heavy precipitation.
After the adjustment, the standardization and pertinence of the content of early warning signals will be further improved.
For example, when multiple meteorological disasters occur at the same time or are predicted to occur at the same time, according to the needs of local early warning signal dissemination and organizational defense, an early warning signal with a higher level or a heavier impact can be selected to release, and at the same time, it can be clearly stated in its release content. Other disaster warning information.
The content of early warning signals will be clearer and clearer, following the principle of "highlighted, concise, and easy to understand", and accurately describe the release time, disaster type, early warning signal level, actual situation and development trend, influence scope, etc. town, street).
Meteorological risk reminders will also be added to the content of early warning signals, so that the public can recognize early warnings and risks through meteorological disaster warning signals, make defense work more targeted, and improve meteorological disaster defense capabilities.