#record-low-temperatures

#record-low-temperatures

The Bay Area is about to get frigid enough to potentially break more than a century-old low temperature records in some cities. That's after a series of cold storms encompassed the region this week, dusting the highest peaks in snow. National Weather Service forecasters said they are evaluating whether to issue public alerts for extreme cold over the next 48 hours, with the possibility that the frigid temperatures extend deeper into Friday and linger into Saturday.

Areas along the southern and western coasts of Lake Michigan experienced a phenomenon known as lake effect snow on Monday. This develops when cold air which covered the US this week moves over the relatively warm water of a lake or inland sea. This produces convection and heavy showers that move inland downwind of the lake, and can continue for hours or even days on end. Snowfall totals can be extremely localised and are notoriously difficult for forecasters to predict.