A weather expert has pinpointed a jet stream hurtling towards Ireland next week, bringing with it a low-pressure system - meaning more grim conditions.
Jet streams are fast-flowing, narrow, meandering air currents in the atmospheres of some planets, including Earth, therefore they have a strong influence over the weather.
Forecasters are struggling to be precise about the forecast next week as a result of the weather phenomenon headed our way, according to one expert.
