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
The average for Sequim is only around 5" this time of year, it only takes a few storms for them to reach that average. Similar to the East side of the state. Those big rainfalls this year missed us only 10-15 miles west of them. This over producing shadow has been a theme since June 2022 now. Hence our growing departures. Due to this, the pressure on the elwha watershed has increased as it is the primary water source for the area. Add in the decreased snow pack this year, and it looks like a long summer for us.
You're right. The 25 year average for Port Angeles (1999-2024) for Jan 1 - May 5 is 11.91" and so far only 7.49" have fallen. Interestingly the departure is not nearly as bad for other nearby stations (such as Sequim) so the shadow must have been particularly unusual in the Port Angeles area so far this year.
So @TT-SEA you ignored my question for a lookup of Port Angeles Int Airport departures. I don't know how you access departures so I did a round about method. Below is the climate average for the PA airport station from 1991-2020. If you add the rain from Jan-April you land at 11.72"
Here is the reported YTD rain amounts circled below of 7.73". A departure of -4". You can stop gaslighting me now.
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