Snow showers are expected to develop, especially in eastern and southern England. In their forecast, they predicted daytime temperatures below below 5°C and night time values down to -4°C.
Met Éireann said it is expecting much colder weather to set in from Sunday night while forecasters in the United Kingdom and elewhere say the cold snap next week will be caused by what is known as a "sudden stratospheric warming" in the polar vortex.
March will have arrived by the end of next week so regardless of your take on the seasons, winter will finally be over, although we're not getting our hopes up for suitable weather to mark the occasion.
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But because there are no FDA-approved uses of the substance, the agency can do nothing more than warn the public. Initial findings from the investigation, however, indicated that kratom is the source of the salmonella outbreak.
While the details of further outlook remain uncertain, Met Éireann cautioning at the moment that it looks like it will be a cold regime for early days of next week with easterly winds, and frosty nights with sub zero temperatures.
More specific forecasts, with colour-coded snow and ice warnings, are expected to be issued by Met Eireann in the coming days.
Power cuts and mobile phone services may also be affected.
The Met Office Chief Forecaster's assessment adds: "There is a lot of uncertainty in the extent and timing of snow during Tuesday". The most likely time for a period of more widespread snow now looks to be during Tuesday morning.
Freezing rain expected to make Monday morning hard
The beneficial rain could total as much as 5 inches by the start of next week, which would significantly help the drought. A winter weather advisory is in effect for areas north of Dane County until 3 p.m.
"Parts of Ireland will also see a widespread and severe ground frost".
Negative phases of the NAO are typically associated with colder and snowier-than-average conditions on both sides of the Atlantic, but in this case it's mainly going to affect Europe, at least at first.
It will be very cold on Monday night with a severe frost and the risk of snow showers along northern and eastern coasts.
Winter Storm Watch For Saturday Night Snow
The highest elevations of Allegany and Garrett counties will see the best chance of accumulating snow , especially along I-68. The highest totals will shift further inland to central and western MA and parts of New Hampshire and Vermont.