Weather

 Friday, July 29, 2016

 

HEADLINES

TODAY: Cloudy. Some drizzly showers.

TONIGHT: Longer spell of rain. Drier across Shetland later. Freshening winds.

TOMORROW: Bright spells and showers.

DAYS 3-5: Outbreaks of rain on Sunday. Strengthening winds. Breezy on Monday with showers. Drier and brighter on Tuesday with easing winds.

DAYS 6-10: Perhaps scattered showers and dry, bright periods. Winds falling light midweek.

SUMMARY

Still the occasional shower on today, but overall a drier and brighter day with moderate W’ly winds turning light NW’ly later. A cloudier evening and night with a few showers.

Showers and clear or sunny spells on Saturday with moderate or fresh W or NW’ly winds. Cloudier on on Sunday with rain at times. Fresh W to NW’ly winds, occasionally strong.

Scattered showers and some dry and bright weather. Moderate or fresh NW to N’ly winds easing by midweek. Then mainly dry and bright with the occasional shower and light to moderate winds.

GENERAL SITUATION AND SYNOPSIS

A depression centred between Faeroe and Shetland will bring a showery SW to W’ly airflow across the north of Scotland.

The low is expected to move away to the north of Shetland on Thursday and then the southern Norwegian Sea, pulling in a W to NW’ly airflow over the Northern Isles by the weekend.

Current forecasts suggest filling low pressure to the north or northeast of Shetland will bring an easing NW’ly airflow during the first part of next week with a mostly slack airflow for the rest of the week.

FORECAST FOR NEXT THREE DAYS

Daytime highs of 15° or 16° Celsius in Kirkwall, 14° or 15° Celsius for Lerwick. Overnight lows generally 10° or 11° Celsius.

FRIDAY 29th: Still the occasional shower, but overall a drier and brighter day with some sunshine and F4 W’ly winds turning F3 NW’ly later. Clouding over this evening with spells of rain. Becoming drier across Shetland later in the night. F5 W’ly winds

Sea State: Slight to moderate, with a 1 to 2 metre W’ly wind-swell.

SATURDAY 30th: Showers and clear or sunny spells with F4-5 W or NW’ly winds.

Sea State: Slight to moderate, with a 1 to 2 metre W to NW’ly wind-swell.

SUNDAY 31st: A cloudy day with outbreaks of rain. F5-6 NW’ly winds.

Sea State: Moderate, with a 2 metre NW’ly wind-swell.

10-DAY OUTLOOK

Temperatures rising to 14° to 16° Celsius by day. Overnight lows falling to around 10° Celsius.

MONDAY 1st: Scattered showers and bright spells with fresh to strong W or NW’ly winds.

Sea State: Perhaps moderate, with a 2 metre NW’ly wind-swell.

TUESDAY 2nd: Scattered showers and some dry and bright weather. Moderate or fresh NW to N’ly winds.

Sea State: Perhaps moderate, with a 2 metre NW’ly wind-swell.

WEDNESDAY 3rd – MONDAY 8th: Mainly dry and bright on Wednesday with light winds easing. Then continuing mainly dry and bright with the occasional shower and light to moderate winds.

Sea State Tuesday: Possibly moderate, with a 2 metre NW’ly wind-swell.

Sea State Wednesday: Possibly moderate, with a 2 metre NW’ly wind-swell.