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East Highlands

Weather hazards over 300m on Tue 28 Apr 2015

High risk

No high risks
none

Medium risk

No medium risks
none

Low risk

Blizzards
Risk more likely across western ranges.
Gales
Southern ranges may see gusts to gale force near any heavier showers during the afternoon.
Severe chill effect
Gusty winds near showers with sub zero temperatures over the Munros, lower wind-chill mid slopes.
Persistent extensive hill fog
In prolonged showers in south later.
Thunderstorms
Isolated lightning strikes possible, mainly in the west.
Strong sunlight
Some strong sunshine with some glare off recent snow in the east.

No risk

Heavy snow
none
Storm force winds
none
Heavy persistent rain
none

Tue 28 Apr 2015

Clear spells overnight with some ice and just the odd snow shower in western ranges. Then during the day further bright spells and isolated snow showers, these showers always more frequent across western ranges such as the Trossachs, where risk of some heavier spells with thunder with hail. Snow settling over the Munros with some whiteout conditions in the heavier spells, but showers of sleet or rain on lowest slopes and in glens. However showers much less frequent in the east for Deeside and Angus hills with some sunny intervals. Some ice persisting on north facing steeper Munros. Clouding over in the south more extensively late evening with further sleet and snow.

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 intervals Sunny intervals Sunny intervals Light snow shower day Partly cloudy night Fog
Precipitation probability
10-30% 10% 20% 20% 30% 40% 50% 40%

Visibility

Excellent outwith snow showers with clear views across the Highlands. However during snow showers rapid reductions to poor, briefly some disorientation when heavier showers pass through where combined with hill fog, but mostly short lived.

Hill Fog

Patches 750 to 900 metres but near showers becoming occasional around 600 metres with patches lowering 450 metres in heavier snow showers, especially western facing slopes. More extensive above 600m in the south later.

Max wind above 600m

West or Northwest 20 mph gusts 35mph, risk of gusts 45mph near showers in the afternoon.

Temperature

Valleys:
Minus 1 rising plus 8 Celsius during the daytime, readily falling away during the evening.
800m:
Around Minus 3 Celsius with added wind chill.
Freezing level:
All levels inland at dawn then rising to between 600 metres during the afternoon.

Issued at: 1759 on Mon 27 Apr 2015

Wed 29 Apr 2015

A cloudy start with outbreaks of sleet and snow across central and southeastern ranges. Generally becoming drier during the morning, however isolated showers cannot be ruled out for the rest of the day, particularly in the north. Some brighter spells will develop through the day particularly in the south during the afternoon.

Visibility

Generally moderate or good at first with poor or very poor conditions in the early snow. Improved visibility through the day with some good views of the highlands at times, however this could quickly fall again in any isolated showers.

Hill Fog

Periods of hill fog above 600m at first with some patches to 300m, clearing to occasional around the summits during the morning.

Max wind above 600m

Easterly 15-20mph at first becoming westerly, latterly northwesterly, all similar speeds.

Temperature

Valleys:
Zero rising plus 8 Celsius during the daytime, readily falling away during the evening.
800m:
Around Minus 3 Celsius with added wind chill.
Freezing level:
600-800m.

Issued at: 1759 on Mon 27 Apr 2015

Thu 30 Apr 2015

Showers, mainly across the northern ranges, but a few will reach southern peaks. Winds gale force at first across the summits, easing mostly light from late afternoon. Visibility good, falling moderate or poor in showers. Snow level around 300 metres in north, and 500 metres in south.

Issued at: 1759 on Mon 27 Apr 2015

Fri 01 May 2015

Showers isolated and light during the morning, but turning heavier across the south for the afternoon and evening. Snow level 300 metres in north, rising to 700 metres in south.

Issued at: 1759 on Mon 27 Apr 2015

Sat 02 May 2015

Isolated showers, mainly in the south early morning then the north thereafter. Winds light, visibilities mostly good.

Issued at: 1759 on Mon 27 Apr 2015