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
Cedar Rapids hit 86º yesterday, so pretty warm. There was a nice breeze and the dewpoint was low, so it was nice.
Today's rain event is looking like a bust. Models have trended south. Several CAMs have nothing here after this morning's 0.02".
A great day today with temps well into the 60's to near 70 for most spots. Rain chances ramp up again by later tomorrow and through much of the day on Wednesday. Thursday looks nice but then more shower chances to end the work week and into the weekend. Near normal temps for much of the week.
Chester County records for today: High 92 degrees in West Chester (1991) / Low 28 degrees at Coatesville 1SW (1928) / Rain 2.50" Morgantown/Elverson (2002)
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