Forecasted Basin-Average Precipitation from REPS (72-Hour)

Forecasted precipitation data aggregated over watershed sub-basins using the Regional Ensemble Prediction System (REPS). The Government of Manitoba provides this geospatial layer, last updated on March 18, 2026, to support hydrological forecasting and water management. Zonal statistics are applied to high-resolution raster forecasts to compute average precipitation in millimeters for each drainage area.

Use Cases

• Regional hydrological forecasting based on forecasted accumulated precipitation (APCP) data.
• Flood risk analysis based on spatial variations in expected rainfall across watershed boundaries.
• Water resource management planning based on 72-hour precipitation forecasts for sub-basins.

Strengths

• Data is derived from the Regional Ensemble Prediction System (REPS), a specific forecast model.
• Provides forecasted precipitation for a 72-hour period, a standard operational window.
• Polygon features highlight variations in forecasted rainfall across different drainage areas.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Government of Manitoba's region of interest.

Provenance

Source

Government of Manitoba | Gouvernement du Manitoba

Collection Method

REPS forecast output (GRIB2 files) processed into rasters, with zonal statistics applied over watershed boundaries.

Freshness

Last updated 2026-03-18 11:31:40.036379; freshness should be verified.

Geography

Likely covers watersheds within the region of interest for the Government of Manitoba.