The worst thing about snow where and when it is unexpected is that no one has the right equipment...like snowplows, trucks, shovels, etc. Or gloves and boots and woolies. Or extra food, water, and fuel.
Remember that light coverings, layered, are useful. If you create what is called 'dead air' spaces, where the cold air can't penetrate through, you will be warmer. One doesn't necessarily need tons of blankets.
But then, your 'cold snap' may not last as long as ours do...north of the 49th parallel.
A cloud cover is warmer than a blue or starry sky. Clouds hold the warmth of sunshine to the earth even if you've had only a cloudy day.
We took a car to the Bahamas, forgetting that there was a snow brush in the back window...for brushing and scraping the night's snowfall from the windshield in the morning. (A credit card will work as a scraper in a pinch, but it is awful small.)
A service station worker spotted it and asked. We gave it to him...probably the only snow brush in the country.
Kids are smart. They always rush out and roll themselves a snowman before it melts.
Damp clothing soon sends them back indoors.
Hope everyone copes beautifully.
Isn't the silence wonderful?