Issued: 1000hrs Saturday 21st April 2018
Duty forecaster: Garry Nicholson
A change to a fresher westerly regime will take place into Sunday. A changeable week ahead, with rain or showers at times. Feeling much cooler than recently, although temperatures close to the average for late April. Some drier and sunnier intervals, best in eastern regions.
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A westerly breeze bring frequent showers into north-western Britain and Ireland, merging into longer spells of rain over the hills, with some heavy bursts. Fewer showers toward eastern and southern Britain. A trailing front may run across southern areas, giving cloudy skies and rain for a time, but tending to clear. Occasional sunshine breaking through. Highs 10 to 16C, warmest south-east.
Low pressure centred north-west of the British Isles. A showery day again, with some heavy bursts getting going through the day. Most frequent rain in the north-west. Local hail and isolated thunder possible. Drier and brighter in the east and south-east, with periods of sunshine. A cool and brisk west to south-westerly breeze, gusty around showers. Temperatures 10 to 15C.
A cool west to north-westerly flow influences the country, producing another day of sunny spells and beefy April showers. Hail and local thunder possible. Rain most frequent again in the west & north-west. Driest in the south and south-east. Pressure may build a little from the south-west later. Breezy, feeling cool. Highs 10 to 15C.
Confidence is low by the end of the week. Staying mixed, with further showers, although may be more scattered. Lighter winds so showers would move around slowly. Sunny periods. Feeling fresh, but pleasant in the sun. Highs 11 to 16C.
Low pressure likely toward the south-west, and higher pressure toward the east. Feeling a touch warmer. A risk of rain for Ireland and western Britain, may become more widespread. Highs 12 to 17C.
Confidence remains low. A mixed outlook, with showers or some longer spells of rain looking likely. Drier and brighter periods too, and generally warmer. Highs 12 to 18C.