Best Flood Alerts Apps

Rivercast: River Levels USA

NOAA Forecasts & Flood Alerts

Free

Monitor river levels, flow rates, and flood warnings with real-time data and forecasts. Get custom alerts for your favorite waterways and visualize trends with interactive graphs. Essential for anyone living, working, or recreating near water.

FEMA

by Federal Emergency Management Agency (FEMA)

Free

This app provides essential tools and information for disaster preparedness, safety, and recovery. Receive real-time alerts, access guidance on emergency plans and kits, and find information on disaster assistance.

Future Flood Predictor

Real-time flood prediction

Free

This application provides real-time, localized flood risk assessments using data from NASA satellites and weather stations. It offers instant risk level indicators and critical alerts to help users stay informed and safe during changing weather conditions.

HydraAtlas

Flood Awareness and Safety

Free

This app provides detailed flood risk information for any US location using official FEMA data. It offers real-time updates on stream gauges, weather alerts, and radar, helping users make informed decisions about potential flood hazards.

FloodWatch

Real-time river and flood data

Free

Monitor real-time river and flood data across the United States. Track river height, discharge, precipitation, and water temperature with data from USGS and NWS. Ideal for property owners, outdoor enthusiasts, and anyone needing flood awareness.

Japan Alerts

Earthquake, tsunami & volcano

Free

Receive real-time alerts for earthquakes, tsunamis, volcanoes, and typhoons directly from Japan's official meteorological agency. Features include S-wave countdowns, municipality-level evacuation orders, and multi-language support for essential information.

NOAA Alerts Weather

Real-time NOAA weather alerts

Free

Receive real-time weather warnings, watches, and hurricane information directly on your iPhone and iPad. This service provides alerts as soon as they are issued by federal agencies, with options to save favorite stations and access offline aviation observations.

FloodRoute

Real-time road flooding risks

Free

This app provides real-time estimations of flood-prone streets in coastal communities using various data sources. It helps users plan safer routes by showing which roads may flood during high tides and offering "what if" scenarios.

GaugeStage: Water Levels

River Levels & Flood Alerts

Free

Track real-time water levels for over 12,000 rivers and streams nationwide. Get flood alerts, monitor conditions, and plan boating or fishing trips with confidence. Access NOAA data and an interactive map to find gauges easily.

myAlerts

Stay Informed, Stay Safe

Free

Receive critical emergency alerts, severe weather warnings, and community updates for your important locations. Stay informed about public safety incidents and local advisories to keep yourself and your loved ones safe.