The first front arrives tonight, bringing an arctic air mass from the central Rockies and Plains. Sunday morning will see wind chills between -1 and -8 degrees in the Sacramento Mountains ...

For IR images with sea-air backgrounds, reflections on surface waves increase background thermal noise that might occlude or alter small objects, complicating their detection. Additionally, clouds and ...

As firefighters gain a modicum of containment over the region’s raging wildfires, air quality has improved slightly but residents close to the fires or anyone who can smell smoke should still ...