Thornton, Colorado, USA
UpdatedWed, 24-Feb-2021 7:50pm MST 


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Labor Day to offer up well above normal temperatures but major changes arrive tonight

Monday, September 7th, 2020 5:12am MST

Labor Day to offer up well above normal temperatures but major changes arrive tonight. The proverbial warm before the storm as Thornton will see a very warm day today.

Tonight, a powerful cold front will be pushing through bringing a jarring change to wintry conditions. We start out the day with sunny skies and those will be with us much of the day. There will continue to be haze and smoke from the Cameron Peak Fire over the area. High temperatures today will be near the 90 degree mark.

Change arrives right around sunset, maybe a bit after as the cold front will push through around 8:00pm. As it does, winds will increase considerably and temperatures are going to plummet. Some light precipitation, initially rain, perhaps with some snow mixed in will be seen, mainly after midnight and in the pre-dawn hours tomorrow. Overnight lows will be dropping to near the freezing mark.

The bulk of the snow looks to fall during the daytime hours tomorrow and into tomorrow night. The National Weather Service has issued a Winter Weather Advisory calling for 3 to 7 inches for the entire event. We see Thornton toward the lower end of that, more on the order of 2 to 4 inches but with the potential for higher amounts.

Accumulating snow will be fighting the warm ground plus the warmer daytime temperatures tomorrow and that may limit things. The biggest concern will be possible damage to fully leafed out trees as the snow will be heavy and wet. Any sensitive vegetation that you want to save should be covered or brought inside.


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