SUMMARY
A cloudy morning with some patchy drizzle across Orkney and Caithness.
Becoming mostly dry with sunny or clear periods by the afternoon as
light NW’ly winds veer N to NE’ly.
Little change is expected over the weekend or early part of next week,
as high pressure maintains settled conditions over northern Scotland.
Later next week, as high pressure weakens, winds may become strong
SE’ly, with some patchy rain spreading from the west by the following
weekend.
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GENERAL SITUATION
AND SYNOPSIS
06:00 UTC 16/05/2008
With high pressure to the west and a cold front moving south
over mainland Scotland, a cloudy NW’ly airflow presently covers
northeast Scotland. This will veer to a clearer N to NE’ly
later today, and freshen a little on Sunday as a small low moves south
over Denmark.
A lighter N’ly airflow will follow for the early part of next
week, as a ridge of high pressure builds southeast from Iceland.
Later next week, it looks as though Atlantic low pressure will drift
closer to the British Isles, with a strengthening SE’ly airflow
as fronts move east against high pressure over Scandinavia.
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FORECAST FOR NEXT THREE DAYS
Weather type – high/medium. Timing – medium.
Daytime temperatures rising to 10° or 11° Celsius, with overnight
lows down to about 4° Celsius inland and 6° Celsius on coasts.
FRIDAY 16th: Bright, though generally cloudy, with
a few scattered, mostly light showers at first. Becoming dry and bright
with sunny spells by the afternoon, as F3 NW’ly winds veer N
to NE’ly and freshen F3-4. The evening mainly dry and clear with
a cool N to NE’ly breeze bringing the risk of a few light showers
for the north of Shetland.
Sea state – Slight with a 1 metre N’ly
swell.
SATURDAY 17th: A bright day with sunny spells and
just the small risk of an isolated light shower, this most likely
over Shetland. Cool F4 N to NE’ly winds.
Sea state – Slight with a 1 metre N’ly
swell
SUNDAY 18th: Mainly dry with sunny or clear periods,
but feeling cool as F4 N to NE’ly winds freshen F4-5 and locally
F6 to the east of Shetland.
Sea state – Slight in the west with a 1 metre
N’ly swell and moderate to the east with a 2 metre N’ly
swell.
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TEN DAY OUTLOOK
Confidence level: Weather type – medium. Timing – medium.
Temperatures around 12° Celsius by day, down to 6° to 8° Celsius
overnight.
MONDAY 19th: Sunny or clear periods and moderate
N to NE’ly winds.
TUESDAY 20th: Dry and bright with light N to NE’ly
winds.
WEDNESDAY 21st – MONDAY 26th: Continuing mostly
dry and bright with light winds at first. Later in the week, winds
becoming S to SE’ly in direction and gradually increasing strong
by the following weekend as outbreaks of rain spread from the west.
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If you wish you can have the 10-day Outlook
e-mailed to you free once a week (usually at the weekend).
Please contact Fair Isle Weather Services for further information.
Fair Isle, South Lighthouse
Full moon rising
1700 UTC 25th October
