This data set gives 48-hour ahead forecasts for 2-m temperature over the last 24 hours at SeaTac (KSEA) and Portland (PDX) airports in 2007/2008 initialized at 00 hours UTC using a 12km grid. The forecasts are based on an 8 member version of the University of Washington mesoscale ensemble (Grimit and Mass 2002; Eckel and Mass 2005).
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