Where is exceptionally heavy rainfall possible?

These maps show places in the world where a forecast model indicates that exceptionally heavy rainfall may occur in the next four weeks (select forecast week from menu) relative to what is normal for that location. THIS MAP PAGE IS CURRENTLY UNDER DEVELOPMENT.

Use the drop-down menu at the top of the page to select the forecast week. Mouse over the map to select the forecast start time from a control that appears just above the map. Select a combination of the forecast start time and the week in the future to produce a map for a target week.

Keep in mind that forecasts beyond one or two weeks are still an area of active research, tend to have low skill, and should be treated with caution. Please see the accompanying subseasonal forecast skill maps for more information.



In order to document SubX data impact and enable continuing support, users of SubX data are expected to acknowledge SubX data and the participating modeling groups. The SubX model output should be referred to as "the SubX data [http://iridl.ldeo.columbia.edu/SOURCES/.Models/.SubX/]" and referenced using the SubX DOI: 10.7916/D8PG249H. In publications, users should include a table (referred to below as Table XX) listing the models and institutions that provided model output used in the SubX system, as well as the digital object identifier of publications documenting the models. In addition, an acknowledgment similar to the following should be included in any publication: “We acknowledge the agencies that support the SubX system, and we thank the climate modeling groups (Environment Canada, NASA, NOAA/NCEP, NRL and University of Miami) for producing and making available their model output. NOAA/MAPP, ONR, NASA, NOAA/NWS jointly provided coordinating support and led development of the SubX system.” where “Table XX” in the paper should list the models and modeling groups that provided the SubX data.


Access the dataset used to create this map.

How to use this interactive map

Return to the menu page: Click the blue link called “Forecasts” at the top left corner of the page.


Contact help@iri.columbia.edu with any technical questions or problems with this Map Room.