frost hollow

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Related to frost hollows: frost pocket

frost hollow

n
(Physical Geography) a depression in a hilly area in which cold air collects, becoming very cold at night
References in periodicals archive ?
Leon Brown, chief forecaster of Birminghambased The Weather Channel, said: "Saturday night will still be the coldest with a widespread moderate to severe frost and temperatures falling to -3degC and -6degC - with a few frost hollows dipping to -7degC or -8degC.
For example, when deciding where best to plant vines, the data can provide a vital insight into the terrain to identify frost hollows and badly-drained areas that adversely affect vines.
On Tuesday night some places could be in for minus 6C or even less where there are frost hollows with clear skies and light winds.