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
Colder upper level airmass this weekend moves in. Doesn't look like a ton of stratiform precip though. There's likely going to be a fair amount of sun breakage most days.
The point was you say "we" saw a record hot May in 2023, but it was far from the whole metro - just PDX. Some months have been legit record hot across the whole area, but that wasn't one of them.
Obviously it was very hot and warm, but the whole record month thing doesn't hold as much weight when it's a station seeing 50% more of them than other places.
ECMWF showed decent sun breaks for the Seattle area for today for many runs. The high temps over the weekend and into early next week indicate sun breaks won't be nearly as prevalent. Pretty hard for SEA to only get to 51 with sun breaks like today.
We usually get a lot of sunbreaks in troughy periods this time of year. Pretty rare to get stronger than forecasted rainbreaks when we have a big ridge overhead though.
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