A yellow weather alert has been issued for Northern Ireland on Sunday night as fog develops across the region, with visibility expected to drop below 100 metres in some areas. According to BBC News, the warning takes effect from 22:00 GMT on Sunday and remains in place until 10:00 on Monday, with inland locations facing the greatest impact.
Fog formation will intensify overnight and continue into early Monday morning, with dense patches developing in affected areas before gradually dispersing during the course of the morning. The warning period encompasses Monday's early commute, meaning drivers on affected routes may encounter significantly reduced visibility during their journeys to work.
Across the border, Ireland's meteorological service has issued its own status yellow fog alert covering 12 counties. The warning from Met Éireann applies from 21:00 (local time) on Sunday until 11:00 on Monday and encompasses the entire Connacht region—comprising Galway, Leitrim, Mayo, Roscommon and Sligo—alongside Cavan, Donegal, Longford, Louth, Meath, Monaghan and Westmeath.
Met Éireann has cautioned that dense fog conditions could produce poor visibility and create difficult travelling circumstances for those venturing outdoors during the warning period. The simultaneous alerts on both sides of the Irish border reflect widespread atmospheric conditions affecting the broader region.
Similar fog disruptions have affected other parts of the UK in recent weeks. Dense fog disrupted the Monday commute across England and Wales in November, with visibility dropping below 50 metres in some locations. Earlier in October, fog warnings were issued as the UK faced hazardous Friday driving conditions, with visibility falling below 100 metres during the morning rush hour. Meteorologists have noted that thick fog developing across the UK creates hazardous driving conditions, with high pressure systems bringing repeated fog formation through the autumn and early winter months.
