A weather warning for snow and ice has been issued for some parts of NI as temperatures could drop to -8C overnight.
The yellow warning issued by the Met Office comes into place at 7pm on Tuesday, March 7, until 9am on Wednesday, March 8.
It covers areas including Co Derry, parts of Co Down, parts of Co Tyrone and parts of Co Antrim.
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The forecaster said: "Snow showers and ice may lead to some minor travel disruption."
A warning for the entire region had already been issued as "heavy snow" is expected later in the week, with the warning coming into place at 3am on Thursday, March 9, until 6pm on Friday, March 10.
The Met Office said: "Heavy snow has the potential to cause significant disruption on Thursday and Friday."
For Tuesday's weather forecast, it said: "A mostly dry and cold day with some good spells of sunshine. Scattered light snow showers at times, mainly in the north, but possible further south in the afternoon. Maximum temperature 5C.
"A dry evening and night with clear skies. Northerly winds will fall light to give a bitterly cold night and a hard frost. Minimum temperature -8C."
And for Wednesday, the Met Office said: "Another cold day, but dry with good sunny spells. Light winds at first, but a moderate easterly may develop later along with increasing cloud. Maximum temperature 6C."
And for later in the week, strengthening winds and snow are expected to spread north on Thursday, turning to rain later.
"Breezy with rain at first Friday, turning dry with light winds later. Further rain and strong winds likely Saturday," the forecaster added.
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