Dr. Eddy Graham's profile picture Dr. Eddy Graham

Eddy Bella Weather Forecast at MG Alba

Eddy on BBC1 Sunday Politics Scotland

eddyweather on Facebook

Eddy-Weather on Facebook

Dr. Eddy on #Abigail, the Gaelic Gale (BBC Scotland)

Recent Awards and Prizes

  • 'Highly Commended' HISA 2016 Teaching Awards for "Most Inspiring Lecturer" category
  • Overall winner HISA 2015  'Most Engaging Online Tutor of the Year' category
  • Nominated 2014 JISC-Scotland i-Tech Awards for innovative use of VC technologies
  • Nominated 2013 'Most Engaging Online Tutor of the Year'
  • Overall winner UHISA 2013 'Most Engaging Video-Conference Tutor of the Year'
  • Overall winner 2006 Pro-Clim Swiss Global Change Day - Best Poster

Dr. Eddy on BBC Scotland 2015

Air Beag air Bheag (Radio nan Gaidheal) 2015

The Devil’s Peak Tablecloth, Cape Town, South Africa

The Dance of the MV Loch Portain

Angry, eddying clouds at Sligeachan (Isle of Skye)

Clouds like waves on a beach ("Swiss Seiche")

Beaver's Tail Cloud, Stornoway

Swiss Fog "Seiche" Waves II

Kisimul Castle, Barra, Castlebay

Calanais Standing Stones

Bheinn Mhor, South Uist, twilight waves

Swiss Alps (Niesen) "foehn" wave clouds

Highland (Inverness) wave clouds

EU Brussels Berlaymont

Gaidhlig Waulking Set at Sabhal Mor Ostaig, Skye

About Me

Dr. Eddy Graham's profile picture

Name: Dr. Edward (Eddy/Eddie) Graham, FRMetS

Role: Meteorologist (FRMetS); Lecturer

Email: edward.graham@uhi.ac.uk / 

eddie.graham@uhi.ac.uk

Office Telephone: +44 (0) 1851 770331

Office Fax: +44 (0) 1851 770001

Mobile: 07760 912536 (texts only)

Skype: eddy.graham

Twitter: @eddy_weather

Facebook: https://www.facebook.com/eddyweather/

Hebridean Weather Blog: Hebridean Weather Blog by Eddy Graham

YouTube Channel: http://www.youtube.com/user/eddyweather  (time lapse animations)

I teach at FE, degree and postgraduate levels for various degree programmes. I am UHI module leader for:

  • Climate Change (SCQF 9)
  • Atmosphere, Weather and Climate (SCQF 8)
  • Climate, Land and People (SCQF 7)
  • Quantitative Research and Data Analysis (SCQF 11)
  • Introduction to Global Environmental Issues (SCQF 7)
  • Mixed Methods and Action Research (SCQF 11)

Other taught modules / courses / evening classes:

  • Understanding the Weather
  • Meteorology at sea
  • Wind Energy (boundary layer meteorology)

Personal History: 

I was born in Shannon (Limerick), Ireland but grew up in Dublin... read more...

Research History:

I am involved in the following research projects... read more...

Education History:

I have a PhD in Applied Physics, a MSc in Meteorology and Bachelors degree in Earth Sciences... read more...

Publications:

I have many publications covering a wide range of topics... read more...

Presentations: 

I have presented at large international conferences, university seminars, schools, as well as on national television, radio and on the web... read more...

Professional Memberships: 

  • Fellow of the Royal Meteorological Society
  • Member Royal Scottish Geographical Society, Climatological Observer's Link
  • Member Pro-Clim, Swiss National Academy of Sciences
  • Past (committee) member of Irish Meteorological Society, Canadian Meteorological and Oceanographic Society, American Meteorological Society.

Responsbilities within UHI

Peer-reviewer, supervisor of PhD students... read more...

Member of University Research Degree Committee.

Other interests and hobbies:

Cycling, walking, hill-walking, reading, time-lapse photography, playing the piano, natural history and geography.

I am occasionally to be seen on television (e.g. BBC), or heard on the radio or in the national press (e.g. The Herald

Unusual fact:

I was once quoted on the front page of The Guardian (as part of a weather forecast for a big sporting event), and also on page 5 of The Sun (and so, narrowly missing eternal fame on page 3!).

 

 

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Happy World Meteorological Day 23 March 2017!

A very happy #WorldMetDay to you today (23 March 2017) from @eddy_weather in the Hebrides, Scotland!

IMG_0276_eriskay_4.JPG

Stornoway: Exceptionally mild winter so far and driest for 6 years

tn_P1291350.JPG

Based on long-term Met Office records for Stornoway (which digitally stretch back to 1873, one of the longest such series in Scotland), the winter of 2016-2017 so far in Stornoway is the 2nd mildest (out of 144 years), 21st driest (out of 144 years) and 48th sunniest (out of 88 years), according to the latest data from @eddy_weather.

Let's look at the data with the aid of a few charts. Firstly,  air temperature: Up to the end of January 2017, the current winter's mean air temperature of +6.9C has only be exceeded once before, in 1989:

Mild-Winter-Temp-Graph.png

Next, precipitation (rainfall & snowfall): We are having a dry winter, the driest in 6 years (since 2011) and the 21st driest in the whole 144-year record (so about a 1:6 or 1:7 year event):

Mild-Winter-Precip-Graph.png

And finally, days with air frost: There have been only 3 air frosts this December and January, which is the joint 10th lowest total since 1873. Overall, there's been a decrease of about 25% in the number of days of air frost since 1873 for these months (see trend line).

Mild-Winter-Frost-Graph.png

@eddy_weather, Stornoway, 5 February 2017.

 

 

'Fairytale' Highlands: The view from 12,000 feet

Flying from Edinburgh to Stornoway recently, I captured the following stunning views of the Highlands. Fog and low cloud filled into the glens like a rising and invading ocean, but the Munro peaks remained glorious and resplendent in the sunshine, just like Greenland nunataks. Here I have identified some of the mountain summits:

Rannoch-Moor-from-Creag-Meagaidh_LABEL.png

1) Looking south across Rannoch Moor

The-Trossachs-LABELS.png

2) North-west across The Trossachs to Ben Lui and Ben Cruachan (near Oban).

Nevis-Range-LABEL.png

3) The Nevis Range and the Great Glen.

Dalwhinnie-LABEL.png

4) Now looking eastwards (from the other side of the aeroplane): Fog winds its way through the Pass of Drumochter

The-Fara_Dalwhinnie_Waves-Zoom-LABEL.png

5) The Fara and Dalwhinnie (the bow waves indicate the fog is flowing upwards from the south, and perhaps is sloshing in seiche fashion e.g. https://youtu.be/liwEP03SgVw?t=4 and https://youtu.be/bWKiRsHSBFw?t=1)

Speyside-under-stratus-glory_LABEL.png

6) A Broken Spectre 'Glory' from the fog top indicates that the fog droplets were 'old', with a variation in size of more than 20%.

Carn-Eighe-Sgurr-na-Lapich.PNG

7) And finally, out of the clouds: Carn Eighe / Sgurr na Lapich with a rather thin snow cover for the time of year.

A radiosounding taken at Abermarle, Northumberland (which was also lying under the fog layer) at 12z on this day shows a strong temperature and humidity inversion at 700-800m. The air temperature was -1.1degC at 766m with 99% relative humidity, whereas at 1050m it was a shocking +8.2degC but with a relative humidity of only 30%.

2017012012.03238.skewt.parc.gif

@eddy_weather, Stornoway, Scotland, 24 January 2017

 

Drax and Ferrybridge Making Clouds

Flying north from Heathrow to Stornoway (via Edinburgh) on Friday 20 January 2017, I was able to spot a plethora of local cloud features. It's all thanks to (a) the quasi-permanent high pressure and temperature inversion across the British Isles lately, and (b) humans.

Firstly, let's look and see what two of the biggest power stations in the UK are up to (from a viewing height of 32,000 feet):

tn_Drax-Ferrybridge-20Jan2017-Zoom1.PNG

Oh dear, it's looks like some stratocumulus or stratus undulatus pyrocumulugenitus!

Let's look more closely:

tn_Drax-Ferrybridge-20Jan2017-Zoom2.PNG.1

Drax is the bigger plant marked 'A' (with presumably a greater emission of water vapour); Ferrybridge is 'B'. Drax's cumulus thermal (pyrocumulus, as it is caused by an anthropogenic heat source) is so powerful, that when it hits the inversion, the cloud oscillates up-and-down downwind (north) in a wave train - that's the undulatus bit.

Now, let's consider the NASA Terra 721 satellite image of the same time. The Drax plume again is most apparent - I wonder if its total water vapour emissions are proportionate to the cloud liquid water extent across the north of England that day? There is surely a link, whether minor or major, as shown by Graham (2007) for the Energie Wasser Bern (EWB) incinerator in Bern Switzerland.

 Drax-Ferrybridge-20Jan2017-Terra721-Zoom.PNG

Reference: 

Graham, E. (2007). Clouds - Nature's Landscape? Montagsseminar, Institut Fuer Angwandte Physik, Universitaet Bern.

 

NASA Terra satellite spies snow extent over Scotland

NASA's Terra satellite flew over Scotland this morning at a height of 705km and captured the following two images:

Capture.PNG.20 Capture2.PNG.7

There's a near complete snow cover over the country but it's all very ephemeral I'm afraid - it'll disappear as quickly as it came!

(False colours: Left: red=snow; Right: cyan=snow).

@eddy_weather, 14 January 2017

Arctic blueskies and snow: View from Stornoway Ranol today

This was the view from Stornoway Ranol hill today, at the top of the Stornoway Golf course: There was about 3-5cm of crisp, frozen snow lying:

2017-01-13 14.18.00.jpg Capture.PNG.19

Capture2.PNG.6

@eddy_weather, 13 January 2017.

First snow of the winter in Stornoway

After the record mild December, at times it felt like it was never going to come... but finally the first snow of the winter is lying across Stornoway tonight - especially on the town's hilly Golf course, where snow enthusiasts (young and old) were out doing some night-time sledging this evening...

2017-01-12 19.13.19.jpg

A few facts on the current cold snap:

  • #thundersnow was recorded in Stornoway three times in the past 36 hours: 5h30 and 16h30 Wednesday, and 8h50 Thursday
  • About 3-5cm of snow is currently lying on undisturbed ground, with deeper drifts in places (due to the strong wind)
  • The air temperature has been ABOVE zero throughout the event (typically +1.5degC), but due to a lowering dewpoint, the snow began to lie properly from midday Thursday due to the ice-bulb effect (yesterday the high winds meant the latent heat transfer was too large and prevented settling of the snow)
  • Most of the snow is actually graupel - soft rimed hailstones!

@eddy_weather, Stornoway, 12 Jan 2017

 

Eddy on #Thundersnow

#Thundersnow is the new weather buzzword that's recently come across the pond from Amerikay...

lightning-552038_960_720.jpg

Listen to Eddie explaining more on BBC Radio Scotland yesterday here: http://www.bbc.co.uk/programmes/b086lh6q at 1hr 26mins 36 secs (or 10:26a.m.).

@eddy_weather

The Weather of 2016 in Stornoway: At a Glance

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I've completed a climatological analyses of the weather in Stornoway during the year of 2016.  Rather than write a tedious monologue, I'be summarised all relevant monthly values in a Table, which is presented below.

Overall the year was mild with the mean temperature about +0.5degC above normal (but not as warm as it was in 2014).  Rainfall was close to average (i.e. much drier than in 2015, which was a record wet year) and there was near average sunshine too. The number of air frosts was below normal.

Station:

Stornoway Town 04004

                       

Status:

Semi-Homogenised

                     

Year

2016

                       

Month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

 Year

Mean Max

7.1

6.7

9.2

9.6

12.9

15.6

16.1

16.8

15.7

13.3

8.6

9.9

11.79

Mean Min

2.8

0.9

3.8

3.4

6.8

10.2

10.8

10.5

10.2

6.9

2.9

4.9

6.18

Mean (degC)

5.0

3.8

6.5

6.5

9.9

12.9

13.5

13.7

13.0

10.1

5.8

7.4

8.98

Highest Max

12.9

10.7

13.5

12.5

19.7

20.0

22.0

22.2

19.2

17.4

13.3

13.1

22.2

Highest Min

10.8

4.9

8.9

6.9

9.8

13.5

14.9

13.9

13.4

12.8

11.2

9.6

14.9

Lowest Max

2.5

3.6

4.6

5.8

9.7

11.9

14.3

14.2

12.2

9.6

3.9

3.9

2.5

Lowest Min

-1.9

-2.3

-2.1

-2.7

2.8

7.2

6.2

4.2

6.2

0.8

-2.5

-1.7

-2.7

Air frosts

7

8

4

3

0

0

0

0

0

0

6

2

30

Grass Frosts

16

23

19

12

1

0

0

0

0

9

17

10

107

Lowest Grass

-6.4

-5.5

-6.4

-5.4

-1.4

4.0

3.1

3.0

1.9

-4.1

-6.7

-6.7

-6.7

Precip (mm)

157.5

154.7

92.6

53.4

62.9

80.0

143.5

86.8

139.0

38.9

114.6

133.0

1257

Wettest

18.8

24.0

27.7

5.8

11.0

12.5

26.1

20.2

20.6

10.8

23.2

14.3

27.7

Raindays (>=0.2mm)

24

26

22

24

12

17

30

16

23

12

25

27

258

Wetdays (>=1.0mm)

18

23

14

14

10

14

23

12

21

10

21

23

203

Hail

7

12

4

7

2

0

0

0

0

0

6

6

44

Thunder

3

1

0

0

1

1

0

1

2

0

0

2

11

Snowfall

10

16

6

7

0

0

0

0

0

0

5

5

49

Snow Lying

7

2

1

1

0

0

0

0

0

0

0

0

11

Max snow depth (cm)

2

2

2

2

0

0

0

0

0

0

0

0

2

Cloud percent

0.8188

0.7349

0.6956

0.7318

0.7042

0.8073

0.9346

0.6821

0.7243

0.5559

0.6170

0.7917

0.73

 

@eddy_weather, Stornoway, 2 Jan 2017

Record Warm December in Stornoway

With one day of the month yet remaining, December 2016 looks like being a record-breaking mild month in Stornoway.

Eddy reports that the average air temperature for this December will clock in at approximately +7.7°C, almost a full 3°C above normal – or about half a degree warmer than the long-term average temperature for April!

Such a degree of warmth is ‘highly unusual’, and follows very high global air temperatures during both 2015 and 2016. This December will also rank as the warmest of any winter month (December, January or February) for the full period of the Met Office archives, which stretch back over 150 years in Stornoway (one of the longest such series in Scotland).

The following chart places the warmth within the long-term context of all winter months from 1873-2016:

Dec2016-wrm.png

The weather is set to change over the weekend, however, as a short cold snap ushers in wintry flurries and chilly north wind for the New Year.

@eddy_weather, Stornoway, 30 December 2016

Details