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
After yesterday's slight cooling today will see temps pop back up into the 80's. We should see temps trend back to normal and then below starting tomorrow through the weekend. Some higher spots in the county may actually struggle to escape the 50's for high temps both Saturday and Sunday. We will also see some showers around by Sunday. We should warm back to above normal by the middle of next week but should see a solid stretch of cooler than normal temps returning by mid-May.
Chester County records for today: High 91 degrees at Coatesville (1899) / Low 28 degrees also at Coatesville (1903) / Rain 1.84" at Chadds Ford (1976)
Google tells me the whole complex is called White River Falls, but the lowest portion of it is called Celestial Falls. I should probably have used White River Falls as the caption.
Love seeing this rain pour down this morning. Looks like it's going to come down for several hours. Should see widespread 1"+ totals I would think based on how hard it's raining now and looking at radar trends.
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