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Frosty November morning encrusts WNY

A picturesque frosty morning greeted the Western New York region at dawn.

Many areas of the region woke up to find frost encrusted the grass, leaves and other outdoor plants.

Frost forms when the moisture in the air results in condensation temperatures below freezing and the temperature cools down to that point.

And, it happened this morning even though air temperatures at the Buffalo Niagara International Airport only dipped to 36 degrees just before 6 a.m.

That's because the air temperature near the ground where frost formed on the grass, dropped to the frost point of 28 degrees.

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Frost covers the leaves and grass in a yard in Orchard Park Monday. (Mark Mulville/Buffalo News)

This morning marked the first time in November the air temperature at Buffalo dipped into the 30s. It happened eight times in October.

The coldest temperature so far this season - 32 degrees - was recorded on Oct. 31.

Forecasts show even colder air is forecast for the region later this week.

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Cold air behind a passing cold front Friday is expected to bring some of the chilliest air into the Buffalo area by Saturday. Lows are projected to be below freezing for the first time this season. Some lake-effect rain and snow showers are also forecast. (National Weather Service)

Temperatures are forecast to drop below freezing for lows on Saturday with a daytime high only forecast to make 40 degrees.

With a Lake Erie's temperature remaining a relatively warm 56 degrees, that's a recipe for lake-effect snow.

But, forecasters said key ingredients will be missing from the upcoming weekend weather, namely that wind direction will be from the northwest limiting any "fetch" off of the lake, and there will be a "cap" of warmer air aloft that's expected to tamp down any atmospheric instability that could lead to heavy lake-effect snow.

"This will not be a significant event," weather service forecasters said in today's area forecast discussion.

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