• ★ StormNet
• ★ 2026-03-17
• ★ Questions & Answers

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About StormNet

StormNet is optimized to provide the most accurate severe weather forecast with NEXRAD, Super-Res Radar.

StormNet is completely free, with no ads.

Trained on decades of severe weather events, StormNet analyzes high-resolution radar, satellites, ground-based sensors, and weather forecast models in real-time to find complex patterns that lead to severe weather. The model updates each Two minutes to provide 14-day forecasts for lightning, hail, damaging thunderstorm winds, and tornadoes.

Super-Res Radar is the highest-resolution NEXRAD radar data available from 159 stations across the continental United States. Every radar station updates each 3-4 minutes and measures the intensity of precipitation based on how much energy the radar signal receives back from objects in the atmosphere.

Combined, StormNet + Super-Res Radar provides a first-of-its-kind, multiple-component severe weather forecast system for the United States.

StormNet Map Overlays

• Radar: The highest-resolution radar available for the United States from every radar station.
• Radar + Risk: NEXRAD radar, alongside StormNet risk probabilities, for the next Four hours.
• Risk Forecast: The StormNet risk probabilities from real-time to 14 days into the future.

StormNet Risk Forecasts

• Lightning
• Hail
• Damaging Winds
• Tornado

Super-Res (NEXRAD) Radar

• Radar Reflectivity
• Radar Velocity
• Spectrum Width

National Weather Service Warnings

• Tornado
• Severe Thunderstorm
• Snow Squall
• Flash Flood

StormNet vs. National Weather Service

The National Weather Service, the Storm Prediction Center, and other government agencies are the official sources for watches, warnings, and severe weather information. StormNet should serve as a trusted and automated guide for severe weather risk, but StormNet should not be treated as an official source.

StormNet vs. Traditional Weather Models

Existing weather forecast models are unbelievable feats of engineering and predict the ingredients for severe weather, but they are not designed to excel at severe weather forecasting and are not real-time tools. StormNet was trained and optimized to provide severe weather forecasts.

StormNet vs. Other Weather Apps

Existing weather apps and companies generally pass along official government watches and warnings, and often communicate if lightning or hail is already close by. While these are valuable features, we are not aware of another weather application or company that matches StormNet’s ability to provide real-time updates for lightning, hail, damaging thunderstorm winds, and tornado risk.

Powered by OpenSnow

In 2011, OpenSnow began predicting snowfall for skiers and snowboarders.

OpenSnow has since become a global leader in mountain weather forecasts and expanded to provide forecasts for each type of outdoor activity. Since lightning is a risk to outdoor activities, especially on longer mountain-based adventures, OpenSnow made a weather forecast system that would provide both lightning forecasts to help real-time decisions and multi-day outlooks to help trip planning.

Meteorologist Andrew Brady built StormNet to predict the risk of severe weather. OpenSnow acquired his technology in 2024 to support people stay safe and have fun the outdoors.

— Terms & Conditions —

StormNet is free and available in the United States. We'll never track you, sell ads, or collect data. We only ask for your space to present the most accurate radar and severe weather forecast.

Full terms and conditions can be found here: https://support.opensnow.com/legal/terms | https://support.opensnow.com/legal/privacy

New Features: StormNet v1.0.0 Initial Release

StormNet Cheats, Hints, Way to Modify, How to Use & How to Win.