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
Yeah it does look like that on the east side. Looking at the KSEA meteograms suggests it will be close. 80s in May are pretty typical these days it seems…
Not to put you on the spot, but from what I can remember, this was actually one of the most prototypical Niños in modern history. @Phil could probably back the strength of the regime up with a whole basket of numbers and acronyms. With the exception of mid January's SSW induced blip and a few expected, but brief, episodes of transient NW flow, our local weather pattern was locked in a +PNA death grip from late November's strong anticyclone and inversion, all the way until January's end-of-month atmospheric river bonanza-torch withered into the opening days of February.
A slight +PNA lean still persisted through the end of February before March two thousand and twenty two entered the ring and immediately introduced the first natural system-state troughing regime (no SSW takesies-backsies) in over three months. Even then, the Ides gifted a stout ridge and a fancy pair of record highs, including what still remains to be the warmest weather of the year so far at KSEA...
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