Early Winter Weather for WA during El Niño
We return to the topic of El Niño and what it means for WA. Perhaps this constitutes an obsession, for which we make no excuses. The extremely wet month of December 2015 serves as motivation.
Read moreA New Synthesis Report on Climate Change in the Puget Sound
A new state of the knowledge report from the University of Washington’s Climate Impacts Group on climate change in the Puget Sound region was released in November (Mauger et al. 2015).
Read moreSea Level in WA during El Niño Winters
As readers of this newsletter are aware, the tropical Pacific is currently in an El Niño state. Such conditions in the tropical Pacific have usually, but not always, been accompanied by relatively warm winters in the mean for the Pacific Northwest.
Read moreSummer in Review: Increased Number of Hot Days
2015 has so far been much warmer than normal for Washington State, with January through August ranking as the warmest on record. The summer (defined as June through August) was also warm and set records as the warmest summer for the state, with temperatures 4.5°F above the 30-yr (1981-2010) normal when averaged statewide (Fig.
Read moreThe Yacolt Burn of 1902
This summer has included the largest fire (the Okanogan Complex) in WA state history and the most acres burned since at least 2002. The vast majority of wildfires in WA occur east of the Cascade Range crest but that is not the only part of state that can face a serious threat.
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Minimum Temperatures on the Increase in Summer
OWSC is receiving a large number of inquiries about the hot weather this summer and whether it is due to global climate change. The short answer is no, and the recent weather should be thought of as a short-term climate event.
Read moreThe Warm Month of July 1985 for Washington State
This month represents the 30th anniversary of the hottest month on record for WA state – July 1985 – in the last 100 years. In recognition of the relatively warm temperatures that have prevailed in this neck of the woods during the last couple of years or so as well as the record warm June 2015 temperatures, it seems appropriate to review the weather of July 1985.
Read moreThree Flavors of Drought in the PNW
With the topic of drought the focus of numerous local and national news stories of late – whether it’s the current Pacific Northwest (PNW) drought, the devastating multiyear California drought, or the torrential, drought-ending rains in Oklahoma and Texas – it is a good time to review a paper published in 2010 by current and former OWSC staff on different “flavors” of drought in the PNW.
Read moreExtreme Precipitation Events in Washington State during the month of May
One year ago (May 2014), this newsletter included a piece on the historical record of extreme short-term precipitation events in Washington state, with a focus on whether there were any noticeable trends in the frequency and intensity of these event.
Read moreA Review of Winter 2014-2015
The summer and fall 2014 predictions for the winter of 2014-15 were favoring warm and dry conditions for WA State based mostly on the expectation of moderate El Niño development. The El Niño was late to develop, so how did the winter play out?
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