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Rain to Flood Analysis QGIS 4 compatibility
QGIS 4 ready Active
Yes — Rain to Flood Analysis supports QGIS 4 (declared max version 4.99.0).
Rainfall-to-flood analysis for QGIS. Delineates the upstream catchment and longest flow path from a single pour point, downloads and analyses rainfall (ERA5, Open-Meteo, IMD, CHIRPS, NASA POWER, Excel), fits IDF/DDF curves, derives Curve Number and Manning's n rasters from land cover (ESA WorldCover, Esri 10m, NLCD, CORINE, MODIS), builds design hydrographs, and maps flood depth, velocity and hazard class using a HAND approach. Supports NRCS/TR-55, UK FEH, Australia ARR2019, Canada MTO, NZ NIWA and Middle East wadi methods, with HEC-HMS export.
About
Rain2Flood turns rainfall into flood maps inside QGIS. Give it a DEM and a pour point and it delineates the upstream catchment, traces the longest flow path, measures the main-stem slope, fetches rainfall, fits design storms, routes a hydrograph and maps depth, velocity and hazard class. . Workflow: DEM and Slope, then Streams and Sub-basins, then CN / LULC, then either Flash Flood (sub-daily) or Standard Flood (daily). Rainfall Data is a standalone utility, not a pipeline step. . No catchment polygon is required anywhere. Version 3.0 is a substantial correctness release; see the changelog. . Cooked by Rahul Pandey - https://in.linkedin.com/in/rahul-pandey-nitb
| Author | Rahul Pandey |
|---|---|
| Downloads | 13,269 |
| Latest version | 3.0 |
| Last updated | 2026-09-20 (25 days ago) |
| Min QGIS | 3.28.0 |
| Max QGIS | 4.99.0 |
| QGIS 4 ready | Yes |
| Maintenance | Active |
| Category | Hydrology & water |
| Tags | inundation, water, flood, rainfall, hec-hms, discharge, hydrology, open-meteo, chirps, imd, flood modelling, flood mapping, flood risk, rainfall runoff, runoff, hydrograph, unit hydrograph, catchment, watershed, delineation, pour point, stream network, sub-basin, hand, height above nearest drainage, dem, terrain, slope, flow accumulation, scs, curve number, tr-55, nrcs, feh, arr2019, wadi, idf, ddf, frequency analysis, gumbel, gev, log-pearson, return period, design storm, hec-ras, manning, land cover, lulc, esa worldcover, esri land cover, era5, nasa power, water resources, drainage, stormwater, hazard, flash flood, gis, india |
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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.