Turnagain Pass Archives

Date	Problem #1	Problem #2	The Bottom Line
Fri, February 26th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE at all elevations. Human triggered wind slab avalanches up to a foot deep are possible in the mid and upper elevations. These were formed by the strong winds over the past two days. Additionally, slab avalanches failing in buried weak layers 1-3′ deep are possible at all elevations. Pay close [Read More]
Thu, February 25th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE today. With new snow and an overnight wind shift from east to west, it will be possible to trigger fresh wind slabs in wind-loaded terrain on all aspects. Watch for blowing snow, look for signs of wind effect and loading. In addition there are buried weak layers, 1-3′ deep in the snowpack, [Read More]
Wed, February 24th, 2021	Wind Slabs	Persistent Slabs	A MODERATE avalanche danger remains at all elevations. An increase in east winds forecast today should blow a few inches of new snow and any old soft snow into small shallow wind slabs. These will be possible to trigger on any slope with new wind deposited snow. In areas out of the winds at all [Read More]
Tue, February 23rd, 2021	Wind Slabs	Persistent Slabs	Today’s avalanche danger is MODERATE as shifting winds continue to redistribute snow, making it possible to trigger a wind slab avalanche up to a foot deep. Below the surface, there are also two different weak layers of snow 1-2’ deep that are still capable of producing avalanches large enough to bury a person. Travel in [Read More]
Mon, February 22nd, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE today. With increasing northwest winds it will be possible to trigger shallow fresh wind slabs in wind-loaded terrain. In addition there are buried weak layers, 1-2′ deep in the snowpack, that may still be triggered on steep slopes. Watch for blowing snow and changing conditions. Assess the snowpack as you [Read More]
Sun, February 21st, 2021	Persistent Slabs		Today’s avalanche danger is MODERATE, and it remains possible to trigger an avalanche on weak layers of snow buried 1-2’ deep. These persistent weak layers can be difficult to manage since they take a long time to heal and will sometimes, not always, give warning signs like shooting cracks and collapsing prior to avalanching. Adjust [Read More]
Sat, February 20th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE at all elevations. Triggering a slab avalanche 1-2′ thick remains possible on slopes 35 degrees and steeper. These avalanches could be shallow new wind slabs from today, stiff wind slabs from yesterday’s strong winds, or much older wind slabs and softer slabs sitting on various buried weak layers at all [Read More]
Fri, February 19th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger is expected to rise to CONSIDERABLE above 2,500′ today due to strong northwest winds forecast to impact the region. In this case, wind slab avalanches and cornice falls may occur naturally on upper elevation slopes seeing active wind loading. Human triggered wind slab avalanches around a foot deep will be likely on [Read More]
Thu, February 18th, 2021	Persistent Slabs		The avalanche danger is MODERATE. Triggering a slab 1-2′ deep is possible on slopes 35° degrees and steeper. Terrain that has been recently wind-loaded is most suspect. Keep in mind that there are buried weak layers in the snowpack. In addition, recent snowfall amounts, wind effect and the depth and reactivity of the buried weak [Read More]
Wed, February 17th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE today, and it is likely a person could trigger an avalanche on fresh wind slabs up to a foot deep, which could step down to deeper weak layers now buried 1-3’ deep. Strong winds overnight into this morning, along with up to 8″ of upside-down storm snow since early yesterday [Read More]
Tue, February 16th, 2021	Persistent Slabs		Today’s avalanche danger is MODERATE, and it is possible to trigger an avalanche on weak layers of snow buried 1-2’ deep. The most likely places to trigger an avalanche will be on steep slopes with stiff slabs near the surface. A dusting of light snow will make it more challenging to identify stiff slabs, so [Read More]
Mon, February 15th, 2021	Persistent Slabs		The avalanche danger remains MODERATE today. Triggering a slab avalanche on a layer of weak snow, buried 1-2’ deep, is still possible in steep terrain. Assess the snowpack as you travel, identify areas of concern and evaluate terrain consequences. Give cornices a wide berth, limit time spent under glide cracks and watch your sluff. [Read More]
Sun, February 14th, 2021	Wind Slabs		The avalanche danger is MODERATE, and it is still possible to trigger an avalanche 1-2’ deep on steep, wind-loaded slopes. Moderate to strong winds will continue to create sensitive wind slabs on top of multiple buried layers of weak snow today. Since we are dealing with these persistent weak layers, it will also still be [Read More]
Sat, February 13th, 2021	Wind Slabs		The avalanche danger is MODERATE at all elevations for triggering a wind slab avalanche 1-2′ deep. Any slope with prior wind loading, or wind loaded areas, will be possible for a person to trigger a wind slab. Slabs may be stiff enough to allow a person onto them before releasing and they could be triggered [Read More]
Fri, February 12th, 2021	Wind Slabs		A CONSIDERABLE avalanche danger remains on wind loaded slopes above 1,000′. An easterly wind event pummeled the mountains yesterday and touchy wind slabs are expected to be found today. Fresh slabs 1-2′ thick will be likely for a person to trigger. These may be stiff enough to allow a person onto them before releasing and [Read More]
Thu, February 11th, 2021	Wind Slabs		The avalanche danger is CONSIDERABLE above 1000′ due to strong easterly winds, snow available for transport and weak faceted snow and surface hoar. Human triggered wind slabs, 1-2′ deep, are likely in steep wind-loaded terrain, on unsupported slopes and cross-loaded gullies. Natural wind slabs are possible. Additionally, give cornices a wide berth and avoid travel under [Read More]
Wed, February 10th, 2021	Wind Slabs		The avalanche danger is MODERATE on slopes above 1,000′. A few inches of new light snow with moderate to strong easterly winds are expected to create fresh and touchy wind slabs today. These slabs should be fairly shallow, in the foot deep or less range. Pay close attention to areas with active and/or recent wind [Read More]
Tue, February 9th, 2021	Persistent Slabs		The avalanche danger is MODERATE above 1000’, where it is possible to trigger an avalanche up to 1-2’ deep on steep, previously wind-loaded slopes. Most slopes in our area have developed persistent weak layers since our last big snowfall event, and the biggest concern will be where this week snow has been capped by a [Read More]
Mon, February 8th, 2021	Persistent Slabs		The avalanche danger remains MODERATE today above 1000’. Triggering a slab avalanche on a layer of weak snow, buried 1-2’ deep, is still possible in steep wind-loaded terrain. Assess the snowpack as you travel, identify areas of concern and evaluate terrain consequences. Give cornices a wide berth, limit time spent under glide cracks and watch [Read More]
Sun, February 7th, 2021	Persistent Slabs		Today’s avalanche danger is MODERATE at elevations above 1000’, where it will be possible to trigger an avalanche 1-2’ deep on steep slopes where stiff, older wind slabs sit on top of a layer of weak snow. If you are trying to access steeper terrain, be sure to avoid previously wind-loaded slopes with stiff slabs [Read More]
Sat, February 6th, 2021	Wind Slabs		The avalanche danger is CONSIDERABLE above 2,500′ and MODERATE between 1,000′ and 2,500′ due to an increase in northwest winds forecast today. Any slope seeing wind loading will be forming fresh and touchy wind slabs up to a foot or more deep, easily triggered by a person. Above 2,500′ the stronger winds may create naturally [Read More]
Fri, February 5th, 2021	Persistent Slabs		The avalanche danger remains MODERATE at elevations above 1,000′. Triggering a slab avalanche 1-2′ deep is still possible on steep slopes that have seen prior wind loading. Stiffer/harder snow over a buried weak layer is causing this lingering avalanche issue. Additionally, give cornices a wide berth, limit time spent under glide cracks and watch your [Read More]
Thu, February 4th, 2021	Persistent Slabs		The avalanche danger remains MODERATE today above 1000’. Human triggered slab avalanches are still possible in steep terrain that has seen prior wind effect due to a layer of weak snow, buried 1-2’ deep. Evaluate the snowpack and terrain carefully. Give cornices a wide berth, limit time spent under glide cracks and watch your sluff. [Read More]
Wed, February 3rd, 2021	Persistent Slabs		The avalanche danger is MODERATE today above 1000’. Triggering a slab avalanche on a layer of weak snow, buried 1-2’ deep, is possible in steep terrain that has seen prior wind effect. Assess the snowpack as you travel, identify areas of concern and evaluate terrain consequences. In addition, give cornices a wide berth, limit time spent [Read More]
Tue, February 2nd, 2021	Persistent Slabs		The avalanche danger is MODERATE today above 1000’. It will be possible to trigger an avalanche on a layer of weak snow buried 1-2’ deep. While this weak layer may be found on most slopes in the area, the key factor determining stability will be whether there is a slab of stiffer snow at the [Read More]

Below are archived forecasts for the past 5 seasons with the highest danger rating and Avalanche Problem 1 displayed in the chart. Click on a table cell to read the forecast for that day. Alternatively you can view this page for 10 seasons of data plus embedded observations from that day.

Date	25/26	24/25	23/24	22/23	21/22
11/25	No Rating	No Rating	Wet Loose	Wind Slabs	Storm Slabs
11/26	No Rating	No Rating	Wet Loose	Wind Slabs	Persistent Slabs
11/27	No Rating	No Rating	Wind Slabs	Wind Slabs	Persistent Slabs
11/28	No Rating	No Rating	Wind Slabs	Wind Slabs	Persistent Slabs
11/29	No Rating	No Rating	Storm Slabs	Persistent Slabs	Wind Slabs
11/30	No Rating	No Rating	Storm Slabs	Persistent Slabs	Wind Slabs
12/01	No Rating	No Rating	Storm Slabs	Wind Slabs	Persistent Slabs
12/02	No Rating	No Rating	Wind Slabs	Wind Slabs	Persistent Slabs
12/03	No Rating	No Rating	Wind Slabs	Persistent Slabs	Persistent Slabs
12/04	No Rating	No Rating	Wind Slabs	Normal Caution	Persistent Slabs
12/05	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/06	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/07	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/08	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/09	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/10	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
12/11	No Rating	No Rating	Storm Slabs	Storm Slabs	Wind Slabs
12/12	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
12/13	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/14	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/15	No Rating	No Rating	Wind Slabs	Wind Slabs	Deep Persistent Slabs
12/16	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/17	No Rating	No Rating	Storm Slabs	Persistent Slabs	Deep Persistent Slabs
12/18	No Rating	No Rating	Persistent Slabs	Persistent Slabs	Deep Persistent Slabs
12/19	No Rating	No Rating	Wind Slabs	Persistent Slabs	Deep Persistent Slabs
12/20	No Rating	No Rating	Storm Slabs	Persistent Slabs	Deep Persistent Slabs
12/21	No Rating	No Rating	Dry Loose	Wind Slabs	Wind Slabs
12/22	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
12/23	No Rating	No Rating	Storm Slabs	Persistent Slabs	Wind Slabs
12/24	No Rating	No Rating	Storm Slabs	Persistent Slabs	Wind Slabs
12/25	No Rating	No Rating	Storm Slabs	Wind Slabs	Wind Slabs
12/26	No Rating	No Rating	Storm Slabs	Storm Slabs	Deep Persistent Slabs
12/27	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
12/28	No Rating	No Rating	Wind Slabs	Storm Slabs	Deep Persistent Slabs
12/29	No Rating	No Rating	Wind Slabs	Wind Slabs	Deep Persistent Slabs
12/30	No Rating	No Rating	Glide Avalanches	Wind Slabs	Normal Caution
12/31	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
01/01	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
01/02	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
01/03	No Rating	No Rating	Storm Slabs	Storm Slabs	Wind Slabs
01/04	No Rating	No Rating	Storm Slabs	Storm Slabs	Wind Slabs
01/05	No Rating	No Rating	Storm Slabs	Wind Slabs	Normal Caution
01/06	No Rating	No Rating	Storm Slabs	Persistent Slabs	Normal Caution
01/07	No Rating	No Rating	Storm Slabs	Persistent Slabs	Normal Caution
01/08	No Rating	No Rating	Storm Slabs	Persistent Slabs	Wind Slabs
01/09	No Rating	No Rating	Storm Slabs	Persistent Slabs	Wind Slabs
01/10	No Rating	No Rating	Persistent Slabs	Wind Slabs	Storm Slabs
01/11	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
01/12	No Rating	No Rating	Wind Slabs	Deep Persistent Slabs	Wind Slabs
01/13	No Rating	No Rating	Glide Avalanches	Deep Persistent Slabs	Storm Slabs
01/14	No Rating	No Rating	Glide Avalanches	Deep Persistent Slabs	Wind Slabs
01/15	No Rating	No Rating	Glide Avalanches	Wind Slabs	Wind Slabs
01/16	No Rating	No Rating	Glide Avalanches	Wind Slabs	Persistent Slabs
01/17	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
01/18	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/19	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/20	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/21	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/22	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/23	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/24	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Storm Slabs
01/25	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Storm Slabs
01/26	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/27	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Storm Slabs
01/28	No Rating	No Rating	Glide Avalanches	Persistent Slabs	Wind Slabs
01/29	No Rating	No Rating	Storm Slabs	Persistent Slabs	Wind Slabs
01/30	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
01/31	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
02/01	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
02/02	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
02/03	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
02/04	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
02/05	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
02/06	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
02/07	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
02/08	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
02/09	No Rating	No Rating	Persistent Slabs	Wind Slabs	Wind Slabs
02/10	No Rating	No Rating	Persistent Slabs	Wind Slabs	Wind Slabs
02/11	No Rating	No Rating	Persistent Slabs	Wind Slabs	Wind Slabs
02/12	No Rating	No Rating	Wind Slabs	Persistent Slabs	Wind Slabs
02/13	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/14	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/15	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/16	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
02/17	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/18	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/19	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/20	No Rating	No Rating	Wet Slab	Wind Slabs	Persistent Slabs
02/21	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/22	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
02/23	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/24	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
02/25	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
02/26	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/27	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
02/28	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
03/01	No Rating	No Rating	Wind Slabs	Storm Slabs	Normal Caution
03/02	No Rating	No Rating	Wind Slabs	Wind Slabs	Wind Slabs
03/03	No Rating	No Rating	Normal Caution	Wind Slabs	Storm Slabs
03/04	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
03/05	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
03/06	No Rating	No Rating	Storm Slabs	Wet Loose	Storm Slabs
03/07	No Rating	No Rating	Storm Slabs	Wet Loose	Storm Slabs
03/08	No Rating	No Rating	Storm Slabs	Wet Loose	Storm Slabs
03/09	No Rating	No Rating	Persistent Slabs	Wind Slabs	Wind Slabs
03/10	No Rating	No Rating	Wind Slabs	Normal Caution	Wind Slabs
03/11	No Rating	No Rating	Wind Slabs	Normal Caution	Wind Slabs
03/12	No Rating	No Rating	Storm Slabs	Normal Caution	Wind Slabs
03/13	No Rating	No Rating	Storm Slabs	Normal Caution	Persistent Slabs
03/14	No Rating	No Rating	Storm Slabs	Normal Caution	Wind Slabs
03/15	No Rating	No Rating	Storm Slabs	Wind Slabs	Persistent Slabs
03/16	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
03/17	No Rating	No Rating	Wind Slabs	Storm Slabs	Storm Slabs
03/18	No Rating	No Rating	Persistent Slabs	Storm Slabs	Wind Slabs
03/19	No Rating	No Rating	Wet Loose	Storm Slabs	Storm Slabs
03/20	No Rating	No Rating	Wet Loose	Storm Slabs	Wind Slabs
03/21	No Rating	No Rating	Wet Loose	Wind Slabs	Persistent Slabs
03/22	No Rating	No Rating	Wind Slabs	Storm Slabs	Persistent Slabs
03/23	No Rating	No Rating	Wind Slabs	Storm Slabs	Storm Slabs
03/24	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
03/25	No Rating	No Rating	Wind Slabs	Wind Slabs	Storm Slabs
03/26	No Rating	No Rating	Wind Slabs	Deep Persistent Slabs	Storm Slabs
03/27	No Rating	No Rating	Wet Loose	Deep Persistent Slabs	Wind Slabs
03/28	No Rating	No Rating	Wet Loose	Deep Persistent Slabs	Storm Slabs
03/29	No Rating	No Rating	Wind Slabs	Deep Persistent Slabs	Persistent Slabs
03/30	No Rating	No Rating	Storm Slabs	Deep Persistent Slabs	Deep Persistent Slabs
03/31	No Rating	No Rating	Wind Slabs	Deep Persistent Slabs	Wind Slabs
04/01	No Rating	No Rating	Wind Slabs	Deep Persistent Slabs	Wind Slabs
04/02	No Rating	No Rating	Storm Slabs	Deep Persistent Slabs	Storm Slabs
04/03	No Rating	No Rating	Storm Slabs	Wind Slabs	Persistent Slabs
04/04	No Rating	No Rating	Wind Slabs	Wind Slabs	Persistent Slabs
04/05	No Rating	No Rating	Wind Slabs	Wet Loose	Wind Slabs
04/06	No Rating	No Rating	Wind Slabs	Wet Loose	Wind Slabs
04/07	No Rating	No Rating	Wind Slabs	Deep Persistent Slabs	Wind Slabs
04/08	No Rating	No Rating	Wet Loose	Deep Persistent Slabs	Wind Slabs
04/09	No Rating	No Rating	Wind Slabs	Storm Slabs	Wind Slabs
04/10	No Rating	No Rating	Storm Slabs	Storm Slabs	Normal Caution
04/11	No Rating	No Rating	Storm Slabs	Storm Slabs	Normal Caution
04/12	No Rating	No Rating	Storm Slabs	Storm Slabs	Normal Caution
04/13	No Rating	No Rating	Persistent Slabs	Storm Slabs	Normal Caution
04/14	No Rating	No Rating	Persistent Slabs	Wind Slabs	Normal Caution
04/15	No Rating	No Rating	No Rating	Wet Loose	Wind Slabs
04/16	No Rating	No Rating	Wind Slabs	Wet Loose	Wind Slabs
04/17	No Rating	No Rating	No Rating	No Rating	Normal Caution
04/18	No Rating	No Rating	Wind Slabs	Wet Loose	No Rating
04/19	No Rating	No Rating	No Rating	No Rating	Normal Caution
04/20	No Rating	No Rating	Wet Loose	Deep Persistent Slabs	No Rating