After a long stretch of blue skies, subtropical moisture is moving into the Sierra Nevada this week. That means clouds, thunderstorms, maybe a rainbow or two, and possibly even a chance to photograph lightning – in other words, photography weather! Here are the forecasts for Yosemite Valley and Tuolumne Meadows.
This is a typical weather pattern for the Sierra in summer. We’ll get stretches of clear blue skies, then subtropical moisture will move in for a few days, a week, or sometimes even longer, triggering afternoon showers and thunderstorms. Although some clouds and showers are likely this week, it’s hard to predict exactly what will happen on any given day, as the individual storm cells are usually small and localized, and can form and dissipate quickly. It helps to watch which direction the clouds are moving, and, if you can get an internet connection, keep an eye on weather radar. Of course you need to stay away from lightning, and avoid high, exposed ridges when thunderstorms are around.