They crisscross our skies on nearly a daily basis, sometimes lasting only seconds and other times expanding into widespread clouds. What are contrails, how do they form and what's behind their behaviour?
Expected Max UV Observation:
This is today's expected maximum UV reading, taking today's weather into consideration.
- Minimal sun protection required for normal activity
- Wear sunglasses on bright days. If outside for more than one hour, cover up and use sunscreen
- Reflection off snow can nearly double UV strength. Wear sunglasses and apply sunscreen