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
PHX torched yesterday and it sure did feel HOT...it hit 102F at 2:04pm...I was at the pool earlier in the day around Noon and it felt like a day in late May or early June. some ppl were complaining but I embraced it and didn't mind the Heat at all. Looking forward to the cool down coming later this week into the weekend.
It was actually slightly warmer last night with more spots remaining above freezing than Monday AM. The lowest reading I could find was the 29.9 in Warwick Township. Here in East Nantmeal we only made it down to 35.7...I also did not note any frost. While many lower spots have had several days below freezing here in April in EN we have not been below freezing in almost a month (March 25th) Today we should reach the mid 60's for highs. A slight chance of showers tonight and tomorrow with cooler temps again to close out the work week before a nice warming trend kicks in starting Sunday.
Chester County records for today: High 91 degrees (1960) / Low 24 at Coatesville (1922) / Rain 2.38" at West Chester (2012) / Snow 2.0" Sadsburyville (1911)
How deep into the year can you see snow? Seattle proper has arguably seen flurries as deep into the Spring as May 1st (at night w/o accumulation and probably a precip mix of course), so I imagine May is no issue up there.
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