A scattering of heavy showers, a few of which could turn thundery, are likely to develop across parts of eastern Northern Ireland this afternoon. Whilst very isolated lightning strikes are possible, the main hazard will come from heavy rain, which could cause flash flooding in a few places. Most places will see 10-20mm, or fewer, falling over the course of an hour or more, but the heaviest showers could deliver up to 40mm in an hour with a small chance that somewhere could see over 50mm through the afternoon. For further details see https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings