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Glasfynydd (Usk Reservoir)

YELLOW Warnings in force
Recent locations
Glasfynydd (Usk Reservoir) last 24 hours
  • 4 °C

    -1 °C

    Sleet
  • 5 °C

    2 °C

    Sleet
  • 5 °C

    1 °C

    Light rain
  • 6 °C

    3 °C

    Light shower day
  • 6 °C

    1 °C

    Light rain
  • 6 °C

    2 °C

    Cloudy
  • 6 °C

    3 °C

    Light rain
Monday   (27 February 2017)
1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Cloudy Sunny intervals Light shower day Overcast Sleet Cloudy Sleet Heavy snow Heavy snow Light snow Light snow Heavy snow Heavy snow
Temperature (°C)
3 ° 3 ° 3 ° 3 ° 2 ° 2 ° 2 ° 1 ° 0 ° 0 ° 0 ° 0 ° 0 °
Warnings
Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow
Feels like temperature (°C) arrow down
-2 ° -1 ° -2 ° -1 ° -3 ° -3 ° -3 ° -4 ° -4 ° -4 ° -4 ° -4 ° -4 °
Precipitation probability arrow down
20% 10% 40% 20% 60% 20% 60% 80% 80% 60% 60% 80% 80%
Wind direction, speed & gust (mph) arrow down
SW 16 30 WSW 14 25 SW 15 27 WSW 14 25 WSW 16 27 SW 13 23 SW 14 25 WSW 12 23 WSW 11 20 SW 11 22 SW 10 19 SW 9 18 WSW 9 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
E E VG E P G VG P P VG P P P
Humidity arrow down
96% 92% 88% 83% 90% 89% 92% 96% 96% 96% 98% 97% 97%
UV index arrow down
1 2 1 1 1 1 1 0 0 0 0 0 0
Tuesday   (28 February 2017)
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300
Heavy snow Heavy snow Heavy snow Light snow Heavy snow Light snow Light snow Mist Light snow shower day Light snow shower day Cloudy Sleet Light snow Light rain Overcast Overcast Overcast Overcast Cloudy Overcast Overcast Light shower night Light rain Overcast
Temperature (°C)
0 ° 0 ° 0 ° 0 ° -1 ° 0 ° 0 ° 0 ° 0 ° 1 ° 1 ° 2 ° 2 ° 3 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 3 ° 3 °
Warnings
Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow Yellow
Feels like temperature (°C) arrow down
-4 ° -4 ° -4 ° -5 ° -5 ° -5 ° -5 ° -5 ° -4 ° -4 ° -4 ° -3 ° -3 ° -2 ° -2 ° -1 ° -1 ° -1 ° -1 ° -1 ° -1 ° -2 ° -2 ° -2 °
Precipitation probability arrow down
80% 80% 80% 60% 80% 60% 50% 20% 40% 40% 10% 50% 60% 50% 20% 20% 20% 20% 10% 20% 20% 40% 50% 10%
Wind direction, speed & gust (mph) arrow down
WSW 9 17 WSW 9 16 WSW 8 15 W 9 17 W 10 18 W 10 17 W 9 17 W 10 19 W 11 21 WSW 12 23 WSW 14 26 W 15 29 W 16 30 W 16 31 W 17 32 W 17 33 W 17 34 W 18 34 W 18 35 W 18 36 W 18 35 W 17 33 W 16 31 W 16 31
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M P P VP P P P P VG G VG P P VG E E E E VG E VG VG VG VG
Humidity arrow down
96% 98% 98% 98% 98% 98% 97% 96% 95% 95% 91% 91% 88% 88% 85% 82% 81% 80% 79% 80% 83% 85% 90% 90%
UV index arrow down
0 0 0 0 0 0 0 0 1 1 1 1 2 1 1 1 1 1 0 0 0 0 0 0
Wednesday   (01 March 2017)
0000 0300 0600 0900 1200 1500 1800 2100
Overcast Cloudy Partly cloudy night Cloudy Cloudy Light rain Light rain Light shower night
Temperature (°C)
3 ° 2 ° 2 ° 3 ° 5 ° 4 ° 4 ° 3 °
Warnings
No warnings for Wednesday
Feels like temperature (°C) arrow down
-2 ° -2 ° -2 ° 0 ° 2 ° 2 ° 0 ° -3 °
Precipitation probability arrow down
10% 10% <5% 10% 10% 50% 60% 40%
Wind direction, speed & gust (mph) arrow down
W 15 29 W 13 25 WSW 10 22 SW 8 17 SW 8 17 S 5 11 SW 11 23 W 17 35
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG E VG VG VG G M VG
Humidity arrow down
91% 92% 92% 87% 79% 87% 95% 82%
UV index arrow down
0 0 0 1 1 1 0 0
Thursday   (02 March 2017)
0000 0300 0600 0900 1200 1500 1800 2100
Partly cloudy night Partly cloudy night Cloudy Sunny intervals Sunny intervals Light shower day Light shower night Light rain
Temperature (°C)
2 ° 2 ° 2 ° 4 ° 6 ° 6 ° 5 ° 4 °
Warnings
No warnings for Thursday
Feels like temperature (°C) arrow down
-4 ° -4 ° -3 ° -1 ° 1 ° 1 ° 0 ° 0 °
Precipitation probability arrow down
10% 10% 10% 10% 10% 40% 50% 60%
Wind direction, speed & gust (mph) arrow down
W 19 38 W 17 36 WSW 14 28 SW 14 29 SW 19 39 SW 19 39 SW 16 33 SSW 14 27
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
VG G VG VG G G VG G
Humidity arrow down
76% 75% 81% 81% 76% 78% 84% 91%
UV index arrow down
0 0 0 1 1 1 0 0
Friday   (03 March 2017)
0000 0300 0600 0900 1200 1500 1800 2100
Light rain Light rain Light rain Light rain Light rain Light rain Cloudy Light shower night
Temperature (°C)
4 ° 3 ° 3 ° 4 ° 4 ° 5 ° 5 ° 4 °
Warnings
No warnings for Friday
Feels like temperature (°C) arrow down
0 ° 0 ° 0 ° 0 ° 0 ° 1 ° 2 ° 0 °
Precipitation probability arrow down
60% 50% 50% 60% 50% 40% 20% 40%
Wind direction, speed & gust (mph) arrow down
SSW 10 20 S 7 13 SE 8 14 SSE 10 21 SSE 11 24 S 12 26 S 10 20 SSE 11 21
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G M P M VG G
Humidity arrow down
93% 93% 96% 94% 93% 89% 90% 94%
UV index arrow down
0 0 0 1 1 1 0 0
Saturday   (04 March 2017)
0000 0300 0600 0900 1200 1500 1800 2100
Light rain Cloudy Cloudy Cloudy Cloudy Light shower day Clear night Partly cloudy night
Temperature (°C)
4 ° 3 ° 2 ° 4 ° 6 ° 5 ° 4 ° 3 °
Warnings
No warnings for Saturday
Feels like temperature (°C) arrow down
0 ° -1 ° -1 ° 0 ° 2 ° 2 ° 0 ° 0 °
Precipitation probability arrow down
50% 10% 10% 10% 20% 40% 10% 10%
Wind direction, speed & gust (mph) arrow down
S 9 18 SSW 9 17 S 8 16 S 9 18 S 12 25 S 13 26 S 11 22 S 8 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
M G G VG VG G G G
Humidity arrow down
96% 94% 94% 89% 77% 79% 88% 92%
UV index arrow down
0 0 0 1 2 1 0 0
Sunday   (05 March 2017)
0000 0300 0600 0900 1200 1500 1800 2100
Partly cloudy night Cloudy Cloudy Cloudy Light shower day Light shower day Cloudy Partly cloudy night
Temperature (°C)
2 ° 2 ° 2 ° 4 ° 6 ° 5 ° 4 ° 4 °
Warnings
No warnings for Sunday
Feels like temperature (°C) arrow down
-1 ° -1 ° -1 ° 0 ° 2 ° 2 ° 1 ° 0 °
Precipitation probability arrow down
10% 10% 10% 20% 40% 40% 20% 20%
Wind direction, speed & gust (mph) arrow down
W 8 14 WSW 8 15 WSW 10 18 SW 11 22 SW 13 27 WSW 12 25 WSW 11 21 WSW 11 22
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
G G G G G VG VG G
Humidity arrow down
95% 96% 96% 92% 87% 87% 89% 92%
UV index arrow down
0 0 0 1 1 1 0 0
More Detail chevron down

Issued at: 1000 on Mon 27 Feb 2017

Forecast summary

  • Regional
  • UK 5 days
  • UK 6-30 days

Regional forecast for Wales

Turning colder, with sunny spells and wintry showers.

Today:

A colder day than of late, with frequent blustery showers throughout the day. The showers could be heavy and wintry at times, particularly over higher ground, with thunder and hail also a risk. Maximum Temperature 8 °C.

Tonight:

Continuing outbreaks of showers are likely overnight, again these wintry at times. It will be much colder than recent nights, with a risk of ice forming on untreated surfaces. Minimum Temperature -2 °C.

Tuesday:

Staying unsettled, with showers possible throughout the day, sometimes merging into longer spells of rain and becoming wintry over higher ground. Very windy at times, particularly near the coast. Maximum Temperature 9 °C.

Outlook for Wednesday to Friday:

Staying unsettled and often windy, with showers or some longer spells of rain. A few sunny spells are likely at times. Frosts are possible for some overnight.

Updated at: 0129 on Mon 27 Feb 2017

UK forecast for the next 5 days

Turning colder, with sunny spells and wintry showers.

Today:

Colder than of late, with frequent showers throughout the day and gusty winds in the south. The showers occasionally heavy and wintry at times, particularly over higher ground, with thunder and hail also a risk. Turning drier for northern Scotland.

Tonight:

Wintry showers continuing for many overnight, and breaking out in Scotland by dawn. It will be much colder than recent nights, with a risk of ice forming on untreated surfaces.

Tuesday:

Staying unsettled, with showers possible throughout the day, sometimes merging into longer spells of rain and becoming wintry over higher ground. Very windy at times, particularly near the coast.

Outlook for Wednesday to Friday:

Mainly bright in the north with showers, occasionally wintry. Bands of rain and strong winds moving east across central and southern areas, interspersed with some brighter, drier spells.

Updated at: 0121 on Mon 27 Feb 2017

Outlook for the UK over the next 6-30 days

UK Outlook for Friday 3 Mar 2017 to Sunday 12 Mar 2017:

An unsettled picture is likely as frontal systems move into the UK from the south or southwest, bringing wet and windy weather at times. Snow is likely over northern hills, with a low risk of some snow more widely at times across the north. Between frontal systems, there should be some spells of brighter weather with showers which may be wintry at times in the north. Nevertheless, some brief quieter, drier spells are also likely. Temperatures will generally vary around normal for the time of year, often slightly above average in the south but rather cold at times in the north, with night frosts. There remains the possibility of a more widely settled but colder period, perhaps giving wintry showers in the east and north.

Updated at: 1209 on Sun 26 Feb 2017

UK Outlook for Monday 13 Mar 2017 to Monday 27 Mar 2017:

For the rest of March signals are weak and confidence is low. It will probably be rather unsettled with spells of wet and windy weather at first, interspersed with brighter and showery conditions. Some snow is also possible across the north of the UK. There should, however, also be some drier and brighter spells, where we may see some local frost and fog at times overnight. Temperatures are expected to be slightly above normal for the time of year. However, there remains the possibility of seeing some colder periods, with a chance of snow in places. This is more likely later in the period.

Updated at: 1209 on Sun 26 Feb 2017

Weather map

Mon 1200

Weather forecast map for Glasfynydd (Usk Reservoir)

Glasfynydd (Usk Reservoir) Glasfynydd (Usk Reservoir) – Sunny intervals 51.9435 -3.7162
Swansea Swansea – Hail shower day 51.621 -3.9424
Aberystwyth Aberystwyth – Light shower day 52.415 -4.0817
Cardiff Cardiff – Heavy rain 51.4812 -3.1778
Newtown (Powys) Newtown (Powys) – Heavy rain 52.5118 -3.3118
Hereford Hereford – Heavy rain 52.056 -2.7146
Pembroke Pembroke – Sunny intervals 51.6731 -4.9084
Barnstaple Barnstaple – Light rain 51.0777 -4.0571
Wrexham Wrexham – Light rain 53.0428 -2.9911
Yeovil Yeovil – Cloudy 50.9416 -2.632
Exeter Exeter – Light shower day 50.7179 -3.5327
Caernarfon Caernarfon – Light shower day 53.1393 -4.2727
Birmingham Birmingham – Light shower day 52.4859 -1.889
Swindon Swindon – Cloudy 51.5556 -1.7784
Stoke-on-Trent Stoke-on-Trent – Light shower day 53.0024 -2.178
Banbury Banbury – Light rain 52.0625 -1.3383
Plymouth Plymouth – Heavy shower day 50.3713 -4.1348
Reading Reading – Light rain 51.4523 -0.9724
Southampton Southampton – Light shower day 50.9093 -1.403
Manchester Manchester – Heavy shower day 53.479 -2.2465

Location Details

Glasfynydd (Usk Reservoir)

Location: 51.9435, -3.7162

Altitude: 341.0 m above mean sea level

Video forecast