This time of year, before planning any outdoor activities in the mountains or at elevation, doing a little research can go a long way. Spending time to educate myself on local weather, avalanche risk levels, appropriate gear choices and more have helped me stay safe and in the know for winter hiking and more.
Some links I’ve found to be useful-
Recreate responsibly; winter: https://www.recreateresponsibly.org/winter
Know before you go: https://kbyg.org/
Northwest Avalanche Center: https://nwac.us/
Mountain forecast: https://www.mountain-forecast.com/