System online Datum mPWD Updated — BST ☎ 9842105-6 · Ext 142 Contact
≈ Institute of Water ModellingFFWS · Live with Flood Live forecast
Monsoon Flood Watch · Active

Reading the rivers of the Ganges–Brahmaputra–Meghna basin.

Real-time rainfall, water levels and inundation forecasts for Bangladesh and the transboundary GBM system — built on IWM's hydrodynamic and atmospheric models.

Station forecasts → Rainfall map
Live station levels · sample
Bahadurabad · Jamuna
19.84 m mPWD
▲ +0.21 m / 24h · above danger
Hardinge Br. · Ganges
13.42 m mPWD
▬ steady · near warning
Amalshid · Kushiyara
15.07 m mPWD
▼ −0.13 m / 24h · falling
Interactive · Leaflet + GeoTIFF

Rainfall, on a map you can query

Accumulated rainfall read straight from a GeoTIFF in your browser — click any point to sample the value, switch the base map, or open the full forecast.

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Layer controls

Value at point
—
Click the map to sample
Layer: sample_rainfall.tif
Research fields

What the system watches

Eight forecasting domains, from monsoon floods to tidal surge, backed by IWM's modelling of the region's water.

01

Basin Management

Catchment-scale water balance across the GBM system.

 02

Weather

Rainfall nowcasts and WRF numerical forecasts.

 03

Flash Flood

Rapid-onset warnings for the north-east haor rivers.

 04

Monsoon Flood

Seasonal river forecasts and inundation extent.

 05

Tide Prediction

Coastal water levels and tidal-fluvial interaction.

 06

Climate

CMIP6-based projections of future hydrology.

 07

FCDI

Flood control, drainage and irrigation performance.

 08

Haor Management

Wetland water regimes of the north-east basin.
Partners

Built with the agencies that run the rivers

Developed by IWM with national water, defence and transport authorities.

Data sources — BWDBBMDIMDCWC DHMMFDJAXANOAA