3#05 Mark Diggins: the avalanche forecaster

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“It’s about being prepared for what nature throws at us”

Interview recorded 27/09/23

Since 2009, Mark Diggins has been the coordinator of the Scottish Avalanche Information Service (SAIS). This valuable role means overseeing hazard forecasts for Lochaber, Glen Coe, Craigh Meagaidh, Torridon and the two halves of the Cairngorms… as well as being part of the team that inspects “the most unstable” slopes and snowpacks on a daily basis. In part thanks to this excellent service, Mark is keen to highlight that being avalanched in Scotland is actually “a very rare event”, and that one of the guiding principles of the SAIS is to inform and encourage people to make sound judgements about their own winter adventures, and to be more likely enjoy the icy peaks as a consequence. In his words: “the mountains are a really important place where we can learn and develop as people”.

If you’d like to learn more about how avalanche hazard is measured and judged - and how the formation of a snowpack can lead it to becoming unstable - you’ll find plenty of fascinating insight in this episode. What you’ll also find is a comprehensive picture of how a person finds themselves in the head of such an exciting and essential public service.

Mark’s life has seen him inspired by early youth hosteling trips (where he’d load himself up with heavy tins of peas and beans and sleep on piles of bracken), to serving an apprenticeship with his local climbing club, to being mentored in “how not to be blown over” by climbing great John Cunningham. Having dedicated himself to qualifying as an IFMGA Mountain Guide, he spent 16 years living and working in the European alps, eventually taking up other projects working alongside film and TV crews on remote and challenging projects across the globe. His adventures have taken him: across “poorly mapped” Greenland; “caving” down Low’s Gully on Malaysia’s Mt Kinabulu (and climbing up vines when reaching the jungle terrain that followed); to volcanic acid pools in Ethiopia’s Danakil Depression; and to the echoing sounds of the Bedouin call to prayer in tall desert canyons.

> sais.gov.uk

> markdiggins.com

> bmg.org.uk/guide/?mark-diggins

00:00 - Introduction

02:00 - Welcome. What is the Scottish Avalanche Information Service? Taking over as Co-ordinator in 2009, now “we have forecasters going out into the field, every single day, in six mountain areas”

06:40 - In praise of the SAIS winter conditions blogs

08:40 - “Getting avalanched is actually a very rare event”, why experience and confidence (and “ignoring signs”) might lead to risk

13:00 - “Go into those environments with an open mind, and being ready to change and be flexible”

15:10 - Reading avalanche charts, and understanding the complexity of avalanche hazard, heading to places that are “the most unstable” to find out the truth

18:10 - Technical chat: Explaining how the snow pack develops, and why it fails

23:50 - “Risk” vs “hazard”

26:00 - “What we don’t want is for people to go out in the mountains in the winter and be scared out of their wits”, the need to inform without frightening, and appreciating the value of spaces where hazards are real (“the mountains are a really important place where we can learn and develop as people”)

32:07 - A personal history in the outdoors: life as a forecaster and IFMGA Mountain Guide; youth hostelling trips; carrying tins of food and sleeping on bracken above the Lake District’s cold, hard ground; being supported and encouraged by older members of a local climbing club

40:28 - “John Cunningham was able to stand and not be blown over, and I couldn’t quite work out how he did that! I’ve since learned, and it