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East Highlands

Weather hazards over 300m on Fri 29 May 2015

High risk

No high risks
none

Medium risk

Gales
Gusts around 45mph , giving some buffeting higher slopes.
Severe chill effect
Strong winds and wintry showers will make for significant chill above 800metres, especially summits
Thunderstorms
Isolated storms expected, especially late morning onwards till early evening, but very brief.

Low risk

Strong sunlight
Between showers some strong sunny intervals, especially during the morning.

No risk

Blizzards
none
Heavy snow
none
Storm force winds
none
Persistent extensive hill fog
none
Heavy persistent rain
none

Fri 29 May 2015

Overnight long dry clear spells with just a few wintry showers, these mainly over Badenoch and Speyside with some snow dustings on peaks. After dawn, sunny intervals and passing wintry showers, the showers falling as snow above around 800 metres and sleet above 500metres, with some temporary settling snow over the highest Munros. On lower slopes and in glens showers will fall as rain or hail. The showers heavier and more frequent between late morning and late afternoon whilst best of sunny intervals during the morning and again later in the evening. Isolated thunder and lightning as showers move overhead.

Time
0000 to 0300 0300 to 0600 0600 to 0900 0900 to 1200 1200 to 1500 1500 to 1800 1800 to 2100 2100 to 2400
Weather
Partly cloudy night Partly cloudy night Sunny day Sleet shower day Sleet shower day Hail shower day Sunny intervals Partly cloudy night
Precipitation probability
10-30% 10-30% 10-30% 30-50% 50-70% 50-70% 10-30% 10%

Visibility

Generally excellent with distant peaks visible. However during showers reducing moderate or poor, and briefly very poor over summits in snow showers but these soon passing by.

Hill Fog

During showers temporary periods 450-600 metres, but out with the showers just occasional at 750-900metres, with often just patches over higher summits in the east.

Max wind above 600m

Westerly 30 gusts 40 to 45mph, isolated gust 50mph.

Temperature

Valleys:
Plus 2 Celsius, rising to maximum plus 12 Celsius between showers.. Down to 7 by midnight.
800m:
Around zero Celsius.
Freezing level:
Fluctuating around 900 metres.

Issued at: 1656 on Thu 28 May 2015

Sat 30 May 2015

Wintry showers will continue across the northern Cairngorms and neighbouring northern hills overnight and during the early morning, which could be heavy with some fresh snow on the Munros, but the central and southern Highlands will be mostly dry with good sunny spells developing. By midday all parts bright and dry with sunny spells. During the late evening thickening cloud spreading across Perthshire.

Visibility

Very good but reducing poor as wintry showers move through and occasionally very poor on higher slopes during heavier snow showers early on Saturday. Over the Munros in north brief disorientation likely during heavier showers overnight and early morning. Mostly excellent visibility late morning onwards though reducing moderate over Argyll hills around dusk.

Hill Fog

In north periods 600 to 800 metres, lowering occasionally to 450 metres in showers, becoming occasional 800 metres and upwards later. In south limited patches 750-900metres, though becoming more persistent over Perthshire around dusk.

Max wind above 600m

Northwesterly 25mph with gusts 40mph overnight, then gusts easing 20mph by afternoon. During evening Southeast gusts 35mph picking up by dusk

Temperature

Valleys:
Plus 2 Celsius, rising to plus 14 Celsius in afternoon. Back down to plus 7 Celsius by midnight.
800m:
Around zero Celsius. with initially wind chill over the summits, rising plus 1 Celsius later..
Freezing level:
Around 900metres rising 1100 metres.

Issued at: 1656 on Thu 28 May 2015

Sun 31 May 2015

Rain will spread northwards across all parts during Sunday morning, heavy in places, briefly of sleet on summits with hill fog widely forming. The rain will last through to lunchtime Sunday with some thaw of summit snow and then the late afternoon and evening will be much brighter but with blustery showers, these turning wintry again later. A very windy day with gale force Southeast winds swinging Westerly severe gale force by lunchtime. Freezing level well above summits at first, but lowering to around 900 metres later. Showers turning to snow over the Munros with high wind chill.

Issued at: 1656 on Thu 28 May 2015

Mon 01 Jun 2015

A bright but cold day with sunny spells and just a few showers, these falling as snow on highest Munros with freezing level around 1100metres. By dusk thickening cloud may bring rain across southern ranges. Strong to gale force West then South winds will ease briefly, then a gale force Southeast to East wind picking up later.

Issued at: 1656 on Thu 28 May 2015

Tue 02 Jun 2015

Very disturbed and unseasonably cold weather. Generally windy with East backing Northerly gales, perhaps severe, and with freezing levels around 1000 metres there will be high wind chill over the summits. Generally cloudy with periods of rain and sleet, heavy in places, and some snowfalls over the Munros making conditions decidedly wintry on higher hills with near blizzard conditions over the Cairngorm plateau.

Issued at: 1656 on Thu 28 May 2015