Precipitation: Weekly mean anomalies
Base Time: Thu 21 Sep 2023 00 UTC T+264 Valid time: Mon 25 Sep 2023 00 UTC - Mon 02 Oct 2023 00 UTC
Weekly mean anomalies have been calculated relative to a 20-year model climatology. The areas where the ensemble forecast is not significantly different from the climatology, according to a WMW-test, are blanked.
Note that shaded areas are at 10%, contours are at 1% significant level.
For further details of Extended range output and products, please visit ECMWF Forecast User Guide.
Forecast charts and data
We provide current forecasts, climate reanalyses and specific datasets. These are available via the web, point-to-point dissemination, data servers and broadcasting.
Forecasts show a growing #ElNino event in the tropical Pacific Ocean.
Find out what that means, and what the charts made available by @CopernicusECMWF can tell us about the event: https://www.ecmwf.int/en/about/media-centre/news/2023/forecasts-show-growing-el-nino-event
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Serving meteorology
International collaboration is fundamental to the work of ECMWF, working with the EU and the meteorological community at large, including the World Meteorological Organization, space agencies, and scientists around the world.
Workshops and education
Education is a key element of our work at ECMWF, enabling our partners to get the most from ECMWF's services and develop an advanced understanding of forecasting.
| 26 September | European Weather Cloud User Workshop |
| September 27 – 28 | Machine learning for numerical weather predictions and climate services - A workshop for ECMWF's Member States |
| October 9 – 12 | Training course: Use and interpretation of ECMWF products |
| October 9 – 13 | 20th ECMWF workshop on high performance computing in meteorology |
| 20 October | Informal Seminar: Projecting Flooding Across the United States: Climate Change as a Risk Multiplier |
| October 19 – 20 | ARISTOTLE-ENHSP workshop |
| October 30 – November 3 | Online training course: Introduction to ECMWF computing services (including MARS) |
| 7 November | MAELSTROM Dissemination Workshop |
ECMWF workshops are open to the worldwide meteorological community, though some training is restricted to member states.