Hydrology

River Monitoring and Forecasting Agencies

National Key Messages from National Water Center

Flood Hazard Outlook

5 Day River Flood Outlook

Excessive Rainfall Outlooks (EROs)

3 Day Total Precipitation Forecast

7 Day Total Precipitation Forecast

Reservoirs - From US Army Corp of Engineers

Data Viewer

Notification Services

Advanced

River Monitoring and Forecasting Agencies

River observations and forecasts along with flood inundation mapping (FIM)

Iowa Flood Center - IFIS

US Geological Survey (USGS)

US Army Corp of Engineers

National Key Messages from National Water Center

National Key Messages

Flood Hazard Outlook

Outlook for river, flash flood, urban flood, and small stream flooding potential

Day 1-7 Outlook

Day 1-3 Outlook

Day 4-7 Outlook

5 Day River Flood Outlook

General outlook for moderate flood stage or higher river flooding

Eastern/Central Iowa Outlook

Western Iowa Outlook

National Outlook

Excessive Rainfall Outlooks (EROs)

Probability that rainfall will exceed flash flood guidance within 25 miles of a point.

Day 1 Excessive Rainfall Outlook

Day 2 Excessive Rainfall Outlook

Day 3 Excessive Rainfall Outlook

Day 4 Excessive Rainfall Outlook

Day 5 Excessive Rainfall Outlook

3 Day Total Precipitation Forecast

Eastern/Central Iowa

Western Iowa

National

Iowa - Probabilistic Precipitation

7 Day Total Precipitation Forecast

Eastern/Central Iowa

Western Iowa

National

Reservoirs - From US Army Corp of Engineers

Coralville

Saylorville

Red Rock

Rathbun

Data Viewer

NWS GIS Viewer - Water

USGS | National Water DashboardAccess river level and other water information and weather conditions in your neighborhood! A map viewer showing real-time river level and water data collected at U.S. Geological Survey monitoring locations in context with weather-related data from other public sources.

USGS National Water Dashboard

Notification Services

iNWS - Receive customized text message and email alerts for NWS warnings.

USGS WaterAlert - Get notifications for changes in water conditions based on thresholds you choose.

Advanced

Long Range Flood Outlook - 3-month forecast assessing the potential for minor, moderate, or major river flooding

HEFS - Experimental Hydrologic Ensemble Forecast System - Probabilistic forecasting tool under development that provides a range of possible river levels and their likelihoods up to 10 days in advance. Not an official forecast.

Precipitation Forecast Ensemble Hydrographs - Ensemble Quantified Precipitation Forecast (QPF) Hydrographs provides a range of potential river level scenarios based on varying future precipitation amounts and durations. Not an official forecast.

Experimental Precipitation Forecast Scenario Guidance for Mississippi River - 28-day forecast for sites on the Mississippi River based on different precipitation forecast sources with different levels of forecaster input and quality control. Not an official forecast.