Really, really lovely cumulonimbus action tonight! I just happened to have my drone in the car and got some solid shots of DT Seattle/Lake Washington/Mercer Island/Bellevue looking north from Skyway. Alas, the focal length of the lens doesn't do the vertical height justice and my WB was off rendering it into semi-gross HDR territory, but still... fun looking weather! It was quite windy- I was flying right at 390 ft and the drone was giving me all sorts of warnings about sustained winds/gusts.
A most incredible snow storm. At times the snowfall rates have been as heavy or slightly heavier than January 2017. Temp 27.5, Dewpoint: 27.1 with gusty east wind and very heavy snow continuing. I'm at 11 1/2" now! UNBELIEVABLE!!!! This pic does no justice at all.
NBM is quite an interesting product! Their weighting algorithm is moderately complex and dynamic, though does has some drawbacks as we saw yesterday. For those who don't know, NBM is an attempt by NOAA to create a super probabilistic forecast model that ingests output from all the models above and outputs forecast guidance for local offices that help them to gauge the relative odds of particular weather outcomes. The 'special sauce' is the post-processing, normalization and weighting that they d
Not to mention I think there might be one or 2 up who have relocated to places like Vancouver BC, Seattle, San Fran, LA and other major cities. Lets also not forget Lethal Weapon 4!
They are useful for communicating warming to the public. The 2 meter temp in urbanized areas is what the majority of people experience. Obviously scientists have to be careful to make the distinction of local vs. global climate change and sometimes they are not as careful as they should be. My personal weather station tracks closely with Sea-Tac airport so I think it is fine enough as a representative site for Seattle.
What bothers me more is that like all surface obs these ASOS stations are prone to sensor drift and bias but they don’t seem to have good QC measures in place to catch that early and it’s often the general public alerting the NWS to an issue.
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