An unusual feature conspicuous on satellite imagery this morning over Pacific west of CA: multiple, seemingly organized thunderstorm clusters over the ocean headed eastward toward …

Weather West has provided unique perspectives on California weather and climate since 2006. Dr. Daniel Swain is a climate scientist focused on the dynamics and impacts of extreme …

2018年7月4日 · The extreme heat and localized strong offshore winds along the SoCal coastal plain will clearly lead to major fire weather concerns Fri-Sat.

2017年2月19日 · This brief update will focus exclusively on the major flood risk posed by this weather setup given extremely wet antecedent conditions. Slow-moving atmospheric river may …

2025年1月15日 · At global scales, the EAS does indeed dominate, but at regional scales, changes in atmospheric circulation–horizontal and vertical winds that dictate storm tracks and …

Instead, a quite unusual weather set-up will facilitate a long-duration, moderate-to-strong intensity offshore wind and fire weather event this week across a broad swath of Southern California.

Already this month, we’ve witnessed a prolonged heatwave in Southern California give way to strong winter-like storms in Northern California–fueled in part by the extratropical remnants of …

Over the next 7-10 days, the recent pattern across the West Coast appears likely to persist–with frequent (warm) atmospheric river events across the Pacific Northwest into northernmost …

2024年12月6日 · For the next 7-10 days, unusually dry conditions will likely persist throughout California and much of the West despite the passage of a significant inside slider system early …

2024年10月24日 · Right now, things are looking quite warm again across much of the U.S. West again by early November–including virtually all of California–as anomalously strong ridging …