Polar Sea Ice Changes are Having a Net Cooling Effect on the Climate

A guest post by Steven Goddard One of the most widely discussed climate feedbacks is the albedo effect of polar sea ice loss.  Ice has a relatively high albedo (reflectance) so a reduction in polar ice area has the effect of causing more shortwave radiation (sunlight) to be absorbed by the oceans, warming the water.…

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What is the red dot?

A simple question; what is that red dot on the map? I was looking at the CONUS map browser depicting the 2008 temperature departure from normal provided by NOAA’s High Plains Regional Climate Center and noticed something odd: Click for a larger image Note the red dot in Arizona, which is the only one in…

Mid-Winter Report Card

Mid-Winter Report Card Guest post by Steven Goddard We are almost at the half way point for the meteorological winter (December through February) and it is a good time to evaluate how the NOAA CPC (Climate Prediction Center) and UK Met Office winter forecasts are doing so far.  As seen below, CPC forecast the highest probability of…