Individual analysis by river basin
Updated on February 18, 2026
Accumulated precipitation vs climatology
30 days
Comparison between climatological quantiles and observed accumulation.
Anomaly and trend
14 to 28 days
Anomaly, forecast and observed indicators.
Basin highlights
The climatology of the period under analysis indicates rainfall with records varying between 181 and 203 mm being considered normal (reference quantiles 42.5% and 57.5%). On February 18, 2026, 271 mm of average accumulated precipitation was observed over the basin in 30 days, the calculation of the average of the categorized anomaly index in the basin area the value of 1.7, classifies the basin as tendency to very rainy condition. In the coming weeks, climate behavior indicates a increase in rainfall volumes, the sub-seasonal forecast model suggests rainy behavior or a tending to be rainy.
Climatology
181 mm - 203 mm
Observed 30 days
271 mm
Anomaly index
1.7
Basin classification
tendency to very rainy condition
Forecast
rainy behavior or a tending to be rainy