Weather With Cliff Mass

How extreme heat in Eastern Washington can cause cooler temperatures in the west

Is that a ferry boat in the sky? How summer mirages play tricks on your eyes

Clear skies and warm temps offer perfect viewing of Comet NEOWISE

'Big experiment' this July 4th shows personal fireworks are the main cause of air pollution

Lack of high-flying community fireworks may spare region’s air quality on July 4

British Columbia’s wet, cold spring bodes well for Washington this year

‘Curse of the wet weekends’ has had a strong hold on our region. What's behind it?

Forecasting skill fades after two weeks. So how can scientists predict future climate?

A gloomy start to June — but mellow compared to last weekend’s powerful thunderstorms

‘The Blob’ is back, warming temps and threatening marine ecosystems, but will it last?

Why the eruption of Mount St. Helens dramatically altered temperatures, but not for long

Spring rain is back. That bodes well for local water supplies, wildfire outlook

Another May heat wave: why low 80s this weekend will not break records

Chance of showers, chance of sunbreaks — so what do probability forecasts really mean?

The sun's rays are as strong now as they are in August. So why are temperatures so cool?

‘Dry storm’ causing static, parched soils and heightened allergies

Thank the ‘omega’ pattern for locking in another week of clear blue skies and sunshine

Why March was colder than January this year

Decline in aircraft traffic could degrade West Coast weather forecasting