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
@TT-SEA By the way things are really blooming right now. Saturday will probably be the best day of 2024 with the plants fully greened out alongside 80F weather under uninterrupted sunshine. If this ridge goes double-barrelled like some guidance suggests we will be starting to dry up by the end of the whole warm spell.
If Phil's proclamation for a return to troughing and seasonable westerlies by the 25th rings true, we'll get to see if a late Spring wet pattern can save the lawn. I haven't really experienced a Spring yet where we dried out and warmed up into the 70s/80s for a couple weeks only for the bottom to fall out during the latter portion of the season. Lately we've been unable to turn that 'Summer switch' back off.
We tallied just 0.15" of rain here from this last troughing sequence. Basically the worst case scenario with lots of underperformances and very near-misses. It's quite unfortunate for this time of year, but what can you do. We still have a solid month and a half of a defined midlatitude storm train to contend with before it goess full cutoff randomness by July, so here's to hoping!
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