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The Western US Daily Summit
Active monsoon pattern continues
Thunderstorm coverage will favor Arizona and Utah on Wednesday and Thursday with a high potential for flash flooding in slot canyons and dry washes.
Posted 1 day ago
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Global Air Quality Forecast Map
You can now plan activities around air quality with our new global map layer that provides forecasts for the next 5 days.
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Proprietary Weather Forecast Data
Our goal is to create the most accurate weather forecast, period. On July 1, 2021, we began updating the forecasts on OpenSummit with…
Estimated Trail Conditions
Before heading out on your next hike or mountain bike ride, check the estimated trail conditions in the OpenSummit app.
Current & Forecast Radar
Radar shows us if there is precipitation falling through the sky and helps you to answer the question, "Is it currently or about to rain or snow?".
Wildfire Smoke Forecast Maps
Don't get caught in the smoke. Our wildfire smoke maps highlight the approximate locations of current fires and forecast downstream smo…
Air Quality Map
In addition to the wildfire smoke forecast maps, you can now view the real-time air quality index on OpenSummit to help you plan your next a…
Real-Time Lightning Map
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