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The squalls that dumped half a foot of snow on areas south and east of Buffalo earlier this evening are quickly moving further south, the National Weather Service said.

Forecasters say that for the snow should be heaviest in the Boston Hills and southern Wyoming County for a short while, then move into northern Chautauqua and Cattaraugus counties north of Jamestown and Franklinville. A lake-effect snow warning is in effect for these areas until midnight.

Snowfall rates of 2 inches per hour are expected and there’s the possibility of thunder. Motorists should expect poor visibility due to wind gusts up to 30 mph and very slippery highways. While temperatures are in the low 20s, windchills are in the single digits this evening.

Earlier, a National Weather Service spotter in East Aurora reported that 7 inches of new snow fell in two hours.

The latest snow comes on top of what was brought by a general storm Saturday, which left 7 to 8 inches of snow in northern Erie and Niagara counties and 4 to 6 inches in the Southtowns and the Southern Tier. Officially, 6.3 inches fell at Buffalo Niagara International Airport in Cheektowaga.

Another inch or two of snow is expected to be added to those totals Monday and Monday night and more lake-effect snow is likely Tuesday and Wednesday.

When will it all end? Warmer temperatures are due Thursday and Friday, with highs in the upper 30s and low 40s. If there’s snow then, chances are it will be mixed with rain.