Storm Forecast Issued: 2009-07-04 21:33:00
Valid: 2009-07-05 00:00:00 - 2009-07-05 23:59:00
Regions Affected
Northern Ireland, Ireland, Scotland (excluding the far east), NW England, Wales and SW England ( all of the UK is included in the WATCH )
Synopsis
Similar to Saturday, an area of LOW pressure centred just to the west of Ireland in the Atlantic will be the main dominating feature of the weather across the United Kingdom on Sunday. Numerous showers will be present even at daybreak across quite a few areas thanks to embedded troughs and fronts within the anticyclonic flow around the area of LOW pressure. Further showers and thunderstorms are expected to become very widespread across Ireland and Northern Ireland for much of the day, and increasingly so across Wales and Southwest England later in the afternoon and throughout the evening, due to an approaching occlusion. The showers will move in a northeastward motion across the UK - yet again a broad area has been highlighted, but not all of the showers will be electrified. Moderate winds will ensure the showers/storms should move through fairly quickly, so the flash flooding risk is somewhat limited to areas most prone to frequent showers (western parts of both islands in particular). Ireland/Northern Ireland, and later Wales/SW England appear to have the most favourable environment for thunderstorm development. Showers will decrease in coverage across eastern areas rapidly during the evening hours, but will persist across many western areas throughout the night, and so will the associated risk of thunder and lightning.
