This forecast is updated at 7am, 1pm and 7pm

Issued by Weather Consultancy Services on:
Tuesday 17 October 2017 03:00 hrs
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UK & Ireland Weather Summary for Tuesday
On Tuesday, the remains of ex-Hurricane Ophelia moves away from Scotland across the North Sea into Norway. Gale force winds in northern Britain will ease slowly. A brief ridge of high pressure influences southern areas, although frontal zone over the English Channel is expected to develop, bringing rain to south-western England.

Forecast for astronomy in Machrihanish for the next 5-days
Data based on GFS model updated: Tue 17 October 2017 03:00
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Time SFC Wind Rain * Total cloud Low cloud Med cloud High cloud Temp Sfc RH Pressure Seeing Clarity
Midday TuesdayW 9g27mph0.8mm100%99%3%3%12C86%1011mb40
3pm TuesdayW 6g20mph0.1mm96%96%0%0%11C86%1013mb40
6pm TuesdayW 3g14mph0.1mm67%52%0%0%11C88%1014mb32
9pm TuesdayS 0g5mph0mm93%0%0%0%10C87%1015mb 41
00:01am WednesdayE 1g2mph0mm48%1%1%1%10C87%1015mb43
3am WednesdayNE 2g5mph0mm2%2%0%0%10C91%1014mb45
6am WednesdayNE 3g11mph0mm11%11%0%0%10C92%1013mb45
Midday WednesdayE 4g15mph0.1mm88%87%0%0%11C88%1012mb41
6pm WednesdaySE 3g23mph0.1mm100%35%0%0%11C85%1009mb00
00:01am ThursdaySE 3g33mph6.4mm100%68%50%50%11C93%1004mb00
6am ThursdayS 2g34mph2.1mm100%100%21%21%12C93%1001mb00
6pm ThursdayS 7g35mph7.4mm100%100%100%100%12C92%996mb30
6am FridayW 9g27mph1.5mm68%67%55%55%10C81%999mb42
6pm FridaySE 7g17mph0mm51%0%29%29%10C75%1000mb43
6am SaturdayS 13g34mph3.5mm83%34%67%67%11C82%985mb41
6pm SaturdayW 16g40mph13.4mm100%100%99%99%10C87%985mb40
6am SundayW 12g39mph0.6mm61%57%41%41%10C69%1003mb42
6pm SundaySW 6g21mph0.2mm86%19%50%50%10C73%1008mb41
[* rainfall is previous 6-hours. Gusts are over open ground.]

Planning outlook:
Tuesday low pressure and a cold front will move south across England and Wales with high pressure north west of Scotland. A colder day as rain and snow spreads south. Mainly dry in the channel with sunny spells. Visibilities will be good in the channel but moderate to poor elsewhere in rain and snow.
Wednesday a cell of high pressure is centered west of Ireland and will be ridging east. A cold, windy day with sunny spells and scattered showers of rain and snow. Visibilities will be good but moderate in rain showers, poor in snow showers.
Thursday sees high pressure centred south of Ireland and this will give much of the country a dry, settled, day with sunny spells. Visibilities will be good.
Friday a cold front spreads rain down across Scotland, the Irish Sea and northern England. Fair and dry in the south and in the channel with varying cloud and sunny spells. Visibilities will be good in the south and in the channel, but falling to moderate or locally poor as the rain sets in across the north.
Saturday high pressure to the west of Britain is ridging into Scotland with a front into the far north west. Most areas will be fair and dry with sunny spells today after some patchy mist clears. Visibilities will be good but moderate at first.
Sunday a front moves south east across Britain. Outbreaks of rain will clear western areas in the afternoon. Visibilities will be moderate improving to good as the front clears.

Synoptic charts based on data from 0001 GMT, Monday 16 October 2017 (Updated daily by 9am)
Tomorrow (Day 2)

Day after tomorrow (Day 3)

This forecast is for planning purposes only.
Forecast is copyright Weather Consultancy Services.