WW WEEKLY FORECAST FOR Monday 30th August –Sunday 5th September 2010 

ISSUED Fri 27th August 1030BST

POTENTIALLY SEVERE WEATHER OVER THE PERIOD-None

 It looks like staying dry and fairly settled for most parts during the week bringing more sunshine than recently for most as high pressure dominates the weather for a few days. Chilly with some fog, mist & low cloud for many inland by night though. Nevertheless, some reasonably warm days in the south & east at times but nearer average temperatures elsewhere. Over the weekend high pressure looks likely to still be dominating, so it looks like remaining fairly settled for many, with misty nights but an increasing risk of showers or showery rain pushing into the NW and west and perhaps the SW and the south later on as well. 

Bank Holiday Monday 30th (not Scotland) looks likely to see high pressure dominating to the north so a fine day for most parts after any low cloud, mist or fog clears inland. There may be rather more in the way of cloud in northern & NW Scotland and down the east coasts too. A cool day though for most parts with temperatures reaching 18-19C in the south but more like 15-16C in other areas and only 13C in Highland & northern Scotland so a rather chilly day overall here.

Tuesday 31st will probably see the high pressure stay more or less in situ across the north so a clear night with temperatures quickly dropping inland to give a widespread ground frost in the north and central areas inland by morning. The clear periods overnight will allow some fog, mist & low cloud to develop too but by day the mist & low cloud will clear away giving a mainly dry sunny day for most parts. The far south east may see a few light showers bubbling up by the afternoon and the W Isles and W & N Scotland looks set to be cloudier overall though still some sunny periods at times here too. Temperatures generally still rather cool in the west & the north at 16-18C but south western, southern & eastern parts may see 19-21C reached so about -or only slightly below- average. Still a cool 12-14C in the far north though.

Wednesday 1st September looks likely to see the high slide SE into the North Sea and a more SE’ly flow develop in the west & SW. Perhaps a rather cloudy night in the far north though dry but elsewhere mainly clear allowing temperatures to fall inland in central and northern parts with a touch of ground frost in prone spots again. Conversely the far south and SW staying quite muggy as the SE’ly breeze picks up.  
The long clear periods elsewhere allowing some low cloud, mist and fog patches to develop too. By day a bright sunny start then for most after the early mist clears and staying dry but increasing upper cloud moving into the SW later in the day, making the sunshine rather hazy. The east & SE staying dry with the best of the sunshine. The far north staying rather cloudy with the risk of some low sea fret on NE & east coasts. Temperatures reaching an average 21C in the sunniest southern & eastern parts and locally 22C in urban London & other SE areas but more generally 16-18C further north & west and 15C across Highland & N Scotland and the cloudier N Isles.

Thursday 2nd looks set to see the high pressure move away NE and a weak south easterly flow across all parts. Staying mainly clear overnight in most parts again with some mist, fog or low cloud forming, less risk of any ground frost tonight. Some sea fret on east and NE coasts though but overall a dry day everywhere with sunny periods. Maximum temperatures a warm 21-22C in the south & locally 23C but more like 18-19C elsewhere & on exposed cloudier coasts in the north east and in Highland and N Scotland in the east winds only about 16C. 

Friday 3rd seems likely to see the some rain push into the far NW overnight and during the day but elsewhere staying dry with sunny periods developing after early mistiness clears inland. However high cloud pushing in from the west will mean less in the way of sunshine in the west and central areas today overall. Temperatures in the south and central parts inland nevertheless reaching a warm 21-23C but more like 18-19C in the SW and west and across N England and N Ireland and on east coasts too but in N and Highland Scotland and the N Isles more like 15C

Saturday 4th and Sunday 5th are probably likely to see a still rather settled spell for most in the east and central parts as high pressure dominates in the North Sea leaving a rather warm SSE’ly flow across all eastern parts. Most places further west though seem likely to stay rather cloudy after with some showery rain in the northwest and west for many, though it may break to give some decent sunny periods at times in central parts as well but pulses of showery rain may well affect all western NW’ern and probably SW’ern and possibly some southern parts later Sunday too and these could be rather heavy and possibly thundery in places  though it should stay mainly dry and reasonably sunny for most south eastern and eastern parts after some early inland mist or low cloud patches clear. Temperatures over the weekend by day in the south will likely be near or above average for early September at 20-22C, though locally 23-24C in the sheltered south and urban London but more like 17C further north and around coasts & only a rather chilly 14C in the far north.   
 
FEATURES TO MONITOR THIS WEEK

*Some local fog patches, mist and low cloud inland by night
*Low cloud and fog over some eastern & Ne ‘ern coastal areas in sea mist/haar/fret at times
*Some heavier outbreaks of rain or showery rain with a risk of thunder & hail possible from Saturday in the west & SW
*Some muggy nights in the south & SW midweek

FORECAST CONFIDENCE is moderate-high for the patterning & detail, but only moderate for detail from about Friday onwards 

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