March Is Known For It’s Surprise Snowfalls! SST’s Are Clearly Driving The Upper Air Pattern!

Last night’s snowfall will go down as one of the ‘surprise March snowfalls’. By that I mean the nearly half a foot of snow we got here in Lennoxtown and across many relatively low lying parts of central Scotland. March isn’t unknown to bring the biggest snows of the year, in part down to increased moisture availability, colder water and other factors.

I drove up to Invergordon/Inverness yesterday and as expected, encountered some decent snowfall along with snow covered roads but as I got down to Perth and then into the Stirling, Cumbernauld and eventually Lennoxtown area, I was surprised at the amount of snow on the ground. Didn’t expect much more than a slight slushy covering at best.

Here was the scene yesterday and last night on the A9 near Daviot and then Drumnochter last night.

Source: Mark Vogan

Source: Mark Vogan

Source: Mark Vogan

Source: Mark Vogan

Then around Lennoxtown at 3am.

Source: Mark Vogan

Source: Mark Vogan

Source: Mark Vogan

Source: Mark Vogan

Source: Mark Vogan

Source: Mark Vogan

and this morning…

Source: Mark Vogan

Source: Mark Vogan

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Since it’s March, no matter how cold it may be of feel, the snow is melting fast thanks to a much stronger sun and rays reaching the surface.

Nothing’s changed with regards to the upcoming days. HIGH PRESSURE is still set to build and so too will milder air. Fronts will clip the Northwest keeping things cloudy, often damp and breezy but for much of the rest of the UK, expect dry, at times bright conditions and where sunny, it will get pretty mild, especially helped by a SW flow.

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

Credit: AccuWeather Pro

SST Anomalies Are Clearly Driving The Upper Air Pattern

Global SSTA’s very much driving the upper atmospheric pattern currently. Strong mean trough remains dominant over cold pool in North Atlantic hence NO Greenland block this winter once again.

anomnight_2_26_2015

No chance to CFSv2 500mb height anomalies week 1 through 4. Has trough over coldest waters/ridges over warmest!

wk1_wk2_20150301_z500

wk3_wk4_20150301_z500

See today’s video for the discussion.

Hope to post later on the latest CFSv2 monthly precip/temps for summer 2015.

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