The Flood Summary layers show where a flood is forecasted within the full 30-day forecast horizon (days 1-30) or within 3 distinct time periods (days 1-3, days 4-10 or days 11-30) for GloFAS river network with upstream area larger than 1000 km2. The colours are defined according to the dominant flood signal in the probability of exceedance of the 2-, 5- and 20-year flood thresholds as follows:
- Dark purple: 20-year probability exceeds 75%
- Medium purple: 20-year probability between 50-75%
- Light purple: 20-year probability between 30-50%
- Dark red: 20-year probability is below 30% and 5-year probability exceeds 75%
- Medium red: 20-year probability is below 30% and 5-year probability is between 50-75%
- Light red: 20-year probability is below 30% and 5-year probability is between 30-50%
- Dark yellow: 5-year probability is below 30% and 2-year probability exceeds 75%
- Medium yellow: 5-year probability is below 30% and 2-year probability is between 50-75%
- Light yellow: 5-year probability is below 30% and 2-year probability is between 30-50%
