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UK Weather Warnings
Issued by the Met Office
Yellow warning of thunderstorms
Areas affected: Northern Ireland
ACTIVE
Started at: 13:00 BST on Mon 20 May
Ends: 21:00 BST on Mon 20 May
Many places missing the worst, but where thunderstorms occur, they could bring travel disruption and surface water flooding. - Spray and sudden flooding could lead to difficult driving conditions and some road closures - Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services - There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds - There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost - There is a small chance of fast-flowing or deep floodwater
Issued at: 10:50 BST on Mon 20 May
Yellow warning of thunderstorms
Areas affected: Northern Ireland
Starts: 08:00 BST on Tue 21 May
Ends: 21:00 BST on Tue 21 May
While some places miss them, heavy rain and thunderstorms are likely again on Tuesday, potentially bringing disruption and flooding - Spray and sudden flooding could lead to difficult driving conditions and some road closures - Where flooding or lightning strikes occur, there is a chance of delays and some cancellations to train and bus services - There is a small chance that homes and businesses could be flooded quickly, with damage to some buildings from floodwater, lightning strikes, hail or strong winds - There is a small chance of fast flowing or deep floodwater - There is a slight chance that power cuts could occur and other services to some homes and businesses could be lost
Issued at: 10:58 BST on Mon 20 May
About the Met Office Weather Warnings
The Met Office issues weather warnings when severe weather has the potential to impact the UK.
The Met Office issues warnings for rain, thunderstorms, wind, snow, lightning, ice, extreme heat and fog. These warnings are given a colour depending on a combination of both the impact the weather may have and the likelihood of those impacts occurring.
For more information, see the Met Office Weather Warnings Guide.
Weather Warnings Key
Extreme weather is expected. Red means you should take action now to keep yourself and others safe from the impact of the weather. Widespread damage, travel and power disruption and risk to life is likely. You must avoid dangerous areas and follow the advice of the emergency services and local authorities.
There is an increased likelihood of bad weather affecting you, which could potentially disrupt your plans and possibly cause travel delays, road and rail closures, interruption to power and the potential risk to life and property. Amber means you need to be prepared to change your plans and protect you, your family and community from the impacts of the severe weather based on the forecast from the Met Office.
Severe weather is possible over the next few days and could affect you. Yellow means that you should plan ahead thinking about possible travel delays, or the disruption of your day to day activities. The Met Office is monitoring the developing weather situation and Yellow means keep an eye on the latest forecast and be aware that the weather may change or worsen, leading to disruption of your plans in the next few days.