On September 29, Fengyun-3E meteorological satellite (hereafter referred to as FY-3E satellite） released atmospheric three-dimensional products. This is the first batch of high accuracy global sea surface wind field distribution of diverse time spans, global atmospheric temperature and humidity distribution products at varied altitudes.The satellite can clearly detect the condition of 37 layers of the atmosphere from the ground to the altitude of 60 kilometers.
In mid-August 2021, areas from western to eastern Japan experienced record-heavy rain. The conditions observed are mainly attributed to the following: - Unusually for mid-summer in eastern and western Japan, like atmospheric flow in the latter half of the early-summer rainy season, known as the Baiu, a stationary front was strengthened by a significant north-south gradient of temperature in the lower troposphere between the Okhotsk High to north of Japan and the southward shifted North Pacific Subtropical High (NPSH) expanding to the south of Japan. A continuous confluence of water vapor from continental China and along the margin of the NPSH also contributed to widespread continuous heavy rainfall. - The southward shift of the NPSH that caused a large amount of water vapor flow into western and eastern Japan was related to the subtropical jet stream (STJ) in the upper troposphere, with an overall southward shift over East Asia. Furthermore, significant southward meandering of STJ to the west of Japan is considered to produce a favorable conditions for updraft occurrence and persistent rainfall. - The southward shift of the STJ was likely affected by sea surface temperatures (SSTs) in the tropical Indian Ocean and related convective activity over the Asian summer monsoon region.
Offenbach, 30 August 2021 – In 2021 Germany experienced its rainiest summer for ten years. The extreme rainfall from the low-pressure system 'Bernd' in mid-July severely affected North Rhine-Westphalia and Rhineland Palatinate. It caused devastating floods, resulting in one of the most serious natural disasters for the Federal Republic of Germany since the North Sea storm surge of 1962. Overall, the months of June, July and August were too warm and with average sunshine. This is the summary announced by the Deutscher Wetterdienst (DWD) after an initial analysis of the observations from its approximately 2,000 measuring stations.
Offenbach, 30 August 2021 – During the last month of summer 2021, Germany was mainly under the influence of low-pressure areas centring over the British Isles from where they gradually moved to southern Scandinavia. These resulted in frequent rainfall, which was accompanied at first by violent thunderstorms, extremely heavy localised precipitation and even tornados. Periods of high pressure and sunshine were generally only brief. The initially summery temperatures fell in the course of the month and were at times autumnal during the last ten days of the month. Consequently, August 2021 was slightly too cool, with very significant rainfall and little sunshine. This is the summary announced by the Deutscher Wetterdienst (DWD) after an initial analysis of the observations from its approximately 2,000 measuring stations.
With a target of enabling Common Alerting Protocol, (CAP) readiness in 25 African countries by the end of 2021, it is with great pleasure we announce that CAP in Mali is now online and fully operational. The CAP alerts and warnings are also displayed on the WMO Severe Weather Information Centre (SWIC 2.0) platform as shown in the image below. “Congratulations to Mali!”, they are well on their way to improving the coordination and dissemination of alerts nationally and internationally.
