Forecast the storm before it floods.
RA-FEWS turns DWD ICON-EPS ensembles, IMERG precipitation, and your watch zones into early warnings you can act on — with full transparency on the science behind every number.
From forecast to warning
Four steps, run every forecast cycle.
STEP 1
Ingest the ensemble
Every cycle we pull the 40-member DWD ICON-EPS ensemble and IMERG observed rainfall.
STEP 2
Forecast your catchments
Rainfall becomes river-level forecasts for the catchments and gauges you choose — deterministic and probabilistic.
STEP 3
Check your thresholds
Each forecast is compared to your warning thresholds, giving exceedance probabilities: how likely, how early.
STEP 4
Act on the warning
Per-zone alerts by email, push and SMS — with the science behind every number one click away.
What you get
Designed for civil-defense officers, water utilities, and hydrologists.
Ensemble forecasts
40-member ICON-EPS ensemble with probabilistic bands, not just the deterministic line.
Custom watch zones
Draw catchments, gauges, or service areas. Receive per-zone thresholds and alerts.
Verification metrics
Bias, RMSE, CRPS, Brier — see how the forecast performed on the events you care about.
Multi-model
ICON, ICON-EPS, IMERG side-by-side. Compare deterministic and probabilistic guidance.
Explainable
Every metric carries a tiered explanation: a tooltip, a side panel, and a full methodology page.
Download your data
Export the forecast hydrographs and the underlying data — take what you see for your own analysis, reports, or records.
Try it on one of your catchments.
Free tier covers 48-hour forecasts. No credit card required.