Spectrum of Vital Water Information

Deterministic River Forecasts (5 Days) Multi-Sensor Precipitation Estimates Precipitation Forecasts (48-Hours) SERFC Journal Inundation Mapping

Based on Numerical Weather Prediction & NWS Hydrologic Modeling

Days Weeks Seasons Years

Spectrum of Vital Water Information

Met Model Ensemble Forecast System (MMEFS)

NWS Ensemble Streamflow Prediction (ESP)

Hydrologic Ensemble Streamflow System (HEFS)

National Water Resources Outlook Based on Numerical Weather Prediction

Modeling, Past Rainfall Data, NWS Hydrologic Modeling

Days Weeks Seasons Years

Spectrum of Vital Water Information

NWS Ensemble Stream flow Prediction CPC/Princeton/NOAA EMC HEFS SERFC Water Resources Outlook

Based on Numerical Weather Prediction Modeling, Past Rainfall Data, NWS Hydro Modeling, Climate Modeling & CPC Guidance

Days Weeks Seasons Years

Climatology

Nov. 4, 2010

CPC/Princeton/NOAA EMC

Downscale and Correct CFS Forecasts Develop Multi-Model Ensembles of Soil

Moisture and Runoff (Princeton Group) Develop Drought Indices Compare & Develop New Products

weather.gov/serfc