How Do Plants Affect the Climate?
Washington – or at least, those parts of it not situated in rain shadows – is known for its greenery hence the nickname of the “Evergreen State”. The pervasive rain and mild temperatures allow plants to thrive during the rainy season.
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Strong Winds in WA over the Years
Daily temperature and precipitation data are available going back many years, and are generally used to summarize the variability in the climate, including long-term trends. There are other aspects of the weather and climate that are interesting and important, however, but are often more difficult to procure and are not widely disseminated.
Read moreSea Level Rise Projections and Visualizations
On October 31st, the 2021 United Nations Climate Change Conference (COP26) began in Glasgow, Scotland. There, the parties to the Paris Agreement are expected to ramp up their commitments to reducing greenhouse gas emissions so that the world may prevent some of the worsening effects of climate change.
Read moreA Different Way to Visualize Maximum and Minimum Temperature Distributions
Mean temperatures are often used to characterize the climate on time scales of weeks to millennia, but they are not the whole story. Belaboring the obvious, the variations in temperature also matter.
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La Niña Redux and the Present Drought
There are indications that La Niña may be present in the tropical Pacific during the upcoming winter of 2021-22 (see the “Climate Outlook” below). This was the case during the past winter of 2020-21, and more often than not, La Niña events come in pairs.
Read moreWet Bulb Globe Temperatures during the 2021 Heat Wave
As must be well known by all the readers of this newsletter, the Pacific Northwest suffered through a severe heat wave at the end of June 2021. In association with extreme geopotential heights aloft and thermally-induced low pressure near the surface, many all-time temperature records were set.
Read moreClimatology of WA’s Puget Sound Lowlands Climate Division (#3)
This is the third installment of the “Climate Divisions of WA” series, in which we discuss Climate Division 3 – the Puget Sound Lowlands Climate Division. For analyses of Climate Divisions 1 and 2, see the August 2018 and August 2019 editions of our newsletter.
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The Ideal Climate Index Results Are In!
Readers of this newsletter may recall the piece in the January 2021 edition featuring a link to a survey aimed at determining the location in Washington state with the best climate.
Read moreA Review of Winter 2020-21
As we head toward warmer temperatures, this is the time of year where we like to look back and review the WA state winter conditions. A moderate La Niña event developed early in fall of 2020, and the Climate Prediction Center (CPC) seasonal forecasts were calling for warmer and wetter than normal conditions for WA for the fall months.
Read morePNW 2020 Water Year Impacts Assessment Released
The Pacific Northwest Water Year 2020 Impacts Assessment has been released and is now available online. Sponsored by the NOAA National Integrated Drought Information System (NIDIS), OWSC and colleagues with the University of Washington Climate Impacts Group led this regional collaboration that involved researchers and state and federal practitioners from Idaho, Oregon, and Washington.
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