Turnagain Pass Archives

Date	Problem #1	Problem #2	The Bottom Line
Tue, March 23rd, 2021	Persistent Slabs	Wind Slabs	The avalanche danger remains MODERATE today, and it is still possible to trigger an avalanche on persistent weak layers buried 1-3′ deep. The most likely place to trigger an avalanche is in steep, previously wind-loaded terrain, with stiff snow near the surface. People have triggered avalanches on these layers in the past two days, clearly showing [Read More]
Mon, March 22nd, 2021	Persistent Slabs		The avalanche danger is MODERATE today. There is still a chance of triggering a slab 1-3′ deep on slopes 35° degrees and steeper. Terrain that has been recently wind-loaded is the most suspect. Keep in mind that there are buried weak layers in the snowpack. Assess the snowpack as you travel, identify areas of concern and [Read More]
Sun, March 21st, 2021	Persistent Slabs		The avalanche danger remains MODERATE today, as there is a lingering possibility of triggering an avalanche 1-3’ deep on weak snow buried earlier this month. The most likely places to find unstable snow will be in steep terrain with stiff snow at the surface. In addition to the persistent weak layers, light northwesterly winds may [Read More]
Sat, March 20th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE at all elevations. Easterly winds are on the rise today and triggering a fresh wind slab up to a foot deep is possible. These are most likely to form along ridgelines and in cross-loaded gullies above 2,500′ or in open steep slopes in the trees that see any active wind [Read More]
Fri, March 19th, 2021	Persistent Slabs		The avalanche danger remains MODERATE at all elevations. With weak layers in the top 3 feet of the snowpack, it still remains possible to trigger a slab avalanche 1-3′ deep. Watch for wind slabs in the mid and upper elevations that could be sitting on weak snow as well as soft slabs at all elevations. [Read More]
Thu, March 18th, 2021	Persistent Slabs	Wind Slabs	The avalanche danger remains MODERATE at all elevations. There is still a chance of triggering a slab avalanche that fails on weak snow buried between 1-3′ feet deep. Additionally, increasing west/northwest winds today may be enough to create some new shallow wind slabs in upper elevation terrain. Watch for blowing snow and changing conditions. Assess the [Read More]
Wed, March 17th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE at all elevations. A bump in northwest winds today may be enough to create some new shallow wind slabs in upper elevation terrain. Additionally, there is still a chance a person or snowmachine could trigger a slab avalanche that fails on weak snow buried between 1-3′ feet deep. Keep in [Read More]
Tue, March 16th, 2021	Persistent Slabs		The avalanche danger is MODERATE today, and it remains possible to trigger an avalanche on weak snow buried 1-3’ deep. The most likely places to trigger an avalanche will be on steep slopes that have seen recent wind-loading, with stiffer snow on the surface. Pay attention to clear warning signs of instability like shooting cracks, [Read More]
Mon, March 15th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE today. With an early morning wind shift from east to west/northwest and snow available for transport, watch for small newly formed wind slabs in the upper elevation terrain and in exposed areas in the trees. Additionally, triggering a slab avalanche that fails on weak snow that is buried between 1-3′ feet [Read More]
Sun, March 14th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE in the forecast area. An increase in easterly winds this afternoon, ahead of a storm system tonight, may begin to build new shallow wind slabs. Watch for active wind loading in the Alpine and avoid any fresh wind deposited snow. Additionally, triggering a slab avalanche between 1-3′ feet deep is [Read More]
Sat, March 13th, 2021	Persistent Slabs		The avalanche danger is MODERATE today, and it is possible to trigger an avalanche 1-3’ deep on a layer of weak facets and surface hoar buried by the new snow from earlier this week. Multiple skier-triggered avalanches on this layer yesterday are a clear sign that these weak layers need time to heal. The best [Read More]
Fri, March 12th, 2021	Wind Slabs		There is a CONSIDERABLE avalanche danger above 1000’ due to fresh snow and moderate winds over the last two days. Human triggered wind slabs 2-3’ deep are likely to be triggered today in areas affected by the wind. Cautious route finding and conservative decision making will be essential. Don’t let the draw of sunshine and [Read More]
Thu, March 11th, 2021	Wind Slabs		The avalanche danger is CONSIDERABLE above 1000′ due to sustained winds and plenty of snow available for transport. Human triggered wind slabs 2-3′ deep will be likely and may be triggered remotely. Natural avalanches and cornice falls will be possible. Watch for blowing snow, shooting cracks and recent avalanches. Cautious route-finding and conservative decision-making are [Read More]
Wed, March 10th, 2021	Wind Slabs		The avalanche danger will rise to CONSIDERABLE in the Alpine (above 2500′) today. With sustained easterly winds, increasing snowfall and weak surface snow, expect dangerous avalanche conditions to develop if the weather forecast verifies. Human triggered wind slabs, 1-2′ deep, will be likely in steep wind-loaded terrain, especially on unsupported slopes and in cross-loaded gullies. [Read More]
Tue, March 9th, 2021	Wind Slabs		An approaching weather system will raise the avalanche danger to MODERATE today at elevations above 1000′. Increasing winds will create sensitive wind slabs on top of weak snow that has developed over the past week, making it possible to trigger an avalanche up to a foot deep. Pay attention to changing conditions as the storm [Read More]
Mon, March 8th, 2021	Normal Caution		The avalanche danger is LOW at all elevations. Triggering a large avalanche is unlikely. Use caution on very steep, rocky, wind-affected slopes where an old wind slab pocket might be lingering. Be aware of fast moving ‘sluff’ in terrain where getting knocked over could have high consequences. Sunny slopes will be crusty this morning, but [Read More]
Sun, March 7th, 2021	Wind Slabs	Persistent Slabs	Today’s avalanche danger is rated MODERATE. It is possible a person could trigger an avalanche on wind slabs that started to form in the past 24 hours and continue to develop today. These fresh wind slabs will be forming on a widespread layer of surface hoar that has been growing for the past few days, [Read More]
Sat, March 6th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE at all elevations. A cold northwest wind will be over the region and may form small new wind slabs on leeward slopes and in cross-loaded gullies. Keep an eye out for active wind loading, most likely in the higher terrain. In this case, wind slabs (4-8″ deep) will be possible [Read More]
Fri, March 5th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE at all elevations. In the higher terrain and in exposed areas in the trees, watch for small newly formed wind slabs due to a bump in easterly winds last night. If found, new wind slabs will be possible trigger, yet expected to be in the 6-8″ deep range. Additionally, triggering [Read More]
Thu, March 4th, 2021	Persistent Slabs		The avalanche danger remains MODERATE today. Triggering an avalanche on a persistent weak layer, buried 1-3’ deep, is still possible on slopes 35° and steeper. Use safe travel protocol, identify areas of concern and evaluate terrain consequences. Be on the lookout for old lingering wind slabs in the Alpine, give cornices a wide berth and [Read More]
Wed, March 3rd, 2021	Persistent Slabs		The avalanche danger is MODERATE today, and it is still possible to trigger an avalanche on persistent weak layers buried 1-3’ deep. Without a new load, these layers are becoming more stubborn but they are still capable of producing avalanches. Safe travel will require careful terrain evaluation and good group management, which means only exposing [Read More]
Tue, March 2nd, 2021	Persistent Slabs		The avalanche danger is MODERATE today, and it is still possible a person could trigger an avalanche on layers of near-surface facets and surface hoar buried 1-3′ deep. These weak layers are present at all elevations throughout most of our advisory area. As they become more stubborn to trigger, they are less likely to present clear [Read More]
Mon, March 1st, 2021	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE at all elevations. Human triggered wind slab avalanches formed by the strong winds yesterday, up to a foot deep, are possible in the mid and upper elevations. Additionally, slab avalanches failing in buried weak layers 1-3′ deep are possible at all elevations. Assess the snowpack as you travel, identify areas [Read More]
Sun, February 28th, 2021	Wind Slabs	Persistent Slabs	Strong winds today will raise the avalanche danger to CONSIDERABLE at elevations above 2500’, where it is likely a person could trigger an avalanche in steep, wind-loaded terrain. An avalanche triggered on sensitive wind slabs near the surface may step down to multiple buried weak layers in the upper 2-3’ of the snowpack, making larger [Read More]
Sat, February 27th, 2021	Wind Slabs	Persistent Slabs	The avalanche danger remains MODERATE at all elevations. New and older wind slab avalanches will be possible to trigger today. New wind slabs, formed by a few inches of new snow and wind last night, are likely to be shallow (6-8″). Older wind slabs could be larger, around a foot thick, and hiding under 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