White snowy scenes can trick your camera into underexposing, resulting in a gray color instead. To make sure your snowy winter scenes look white increase your exposure by 1 or more stops. You can also accomplish this with your smartphone by swiping your finger up (after you pressed on the screen to achieve focus) to increase exposure. Just be sure you are not over exposing to much which would result in a lack of details within those white snowy areas. 

I took this picture a couple years ago when visiting Coon Rapids Dam Regional Park with my family. I have recently learned that the future of the Mississippi could be at risk. Near us the river is still clean, however further downstream increasing pollution has become a threat. We need to take action to stop this before it becomes a bigger problem that could cost us dearly. I urge you to visit the following link to learn more and find out how you can take action. The website is easy to navigate and only requires a few minutes of your time. Together we can help save this beautiful river that is precious to us in so many ways. 
Please visit: www.ourmississippiourfuture.org