After the record mild December, at times it felt like it was never going to come... but finally the first snow of the winter is lying across Stornoway tonight - especially on the town's hilly Golf course, where snow enthusiasts (young and old) were out doing some night-time sledging this evening...
A few facts on the current cold snap:
- #thundersnow was recorded in Stornoway three times in the past 36 hours: 5h30 and 16h30 Wednesday, and 8h50 Thursday
- About 3-5cm of snow is currently lying on undisturbed ground, with deeper drifts in places (due to the strong wind)
- The air temperature has been ABOVE zero throughout the event (typically +1.5degC), but due to a lowering dewpoint, the snow began to lie properly from midday Thursday due to the ice-bulb effect (yesterday the high winds meant the latent heat transfer was too large and prevented settling of the snow)
- Most of the snow is actually graupel - soft rimed hailstones!
@eddy_weather, Stornoway, 12 Jan 2017