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The river network summary map layer layer shows the combined forecast anomaly and uncertainty signal in a simplified way for each forecast lead time. The lead time is calendar weekly (Monday to Sunday average river discharge) in the sub-seasonal and calendar monthly (average river discharge across the whole month). The forecast signal is shown for all river pixels above a certain minimum catchment area (currently 50 km2 in EFAS and 250 km2 in GloFAS). Each of these river pixels are coloured
