Seasonal Rainfall Forecast

This Maproom shows seasonal rainfall forecast on a rolling monthly basis.

The default map shows, for the latest forecast made, the more likely seasonal rainfall total amount in the season. Users can use the Field menu to express the forecast in different ways, as follows:

• Rainfall: most likely seasonal total rainfall
• Anomaly: deviation in mm of the most likely seasonal total rainfall from yearly average of the most likely seasonal total rainfall predicted by the hindcast (1982-2011)
• Percent of Median: deviation in percentages of the most likely seasonal total rainfall from yearly median of the most likely seasonal total rainfall predicted by the hindcast (1982-2011)
• Probability of non-/exceeding a Percentile: forecast probability of seasonal total rainfall to be below/above the historically observed (1982-2011) chosen percentile
• Probability of non-/exceeding a Precipitation amount: forecast probability of seasonal total rainfall to be below/above the chosen rainfall amount

Clicking on the map will reveal information about the location clicked, as well as the full forecast distribution at that given location, compared with the historical distribution. Cumulative full distribution of the forecast (red) together with the climatological distribution (blue and black) for the forecast in view on the map shows under Probability of Exceedance, as well as the full probability distribution under Probability Distribution

Dataset Documentation

Seasonal Rainfall Forecast

computed from CPT forecat outputs

Instructions

Helpdesk

Contact webadmin@icpac.net with any technical questions or problems with this Map Room.