Turnagain Pass Archives

Date	Problem #1	Problem #2	The Bottom Line
Fri, February 24th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE above 1000′. It will be possible to trigger avalanches up to a foot deep on slopes where yesterday’s winds built a fresh round of wind slabs. The most likely places to find unstable snow will be at upper elevations near ridgelines, in steep gullies, and below convex rollovers. There is also a [Read More]
Thu, February 23rd, 2023	Wind Slabs	Persistent Slabs	The avalanche danger will rise to CONSIDERABLE above 1000′ as a storm impacts our area today. Strong winds and up to 6-12″ snow will make human-triggered avalanches likely and natural avalanches possible. This new snow will also be loading several suspect layers in the upper snowpack, making larger avalanches possible. Dangerous avalanche conditions will require cautious [Read More]
Wed, February 22nd, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE on all aspects above 1000′. Triggering a lingering wind slab 1-2′ deep from Monday’s strong NW winds remains possible at the upper elevations and in exposed areas in the trees. Triggering sluffs in the loose surface snow on steep slopes also remains possible. There are several weaker layers in the top [Read More]
Tue, February 21st, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE above 1000′. Continued wind loading overnight will make human triggered avalanches 1-2′ deep possible at upper elevations. There are also several buried weak layers in the upper 3′ of the snowpack which may have been involved with a human triggered avalanche on Sunday 2/19/23. Larger human triggered avalanches 2-3′ deep are possible [Read More]
Mon, February 20th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 2500′ today. Northwest outflow winds will be forming fresh wind slabs 1-2′ deep at upper elevations and in areas exposed to gap winds. Human triggered avalanches are likely and natural avalanches are possible in areas receiving active wind loading. There are also several buried weak layers in the upper snowpack that [Read More]
Sun, February 19th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE on all aspects above 1,000′. Triggering a lingering wind slab formed over the past two days will be possible in exposed areas as well as in the trees. These are likely to be around a foot deep. Natural loose snow avalanches are possible as the sun may be strong enough [Read More]
Sat, February 18th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 2500′. Active wind loading and snowfall today will build fresh wind slabs 1-2′ deep that are likely for a person to trigger and possible to cause natural avalanches. Wind slabs are most likely to be found at upper elevations along ridgelines and cross loaded gullies. In addition there are [Read More]
Fri, February 17th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger has increased to CONSIDERABLE above 2,500′ due to strong easterly winds over the region with several inches of new snow. Fresh wind slab avalanches around a foot deep are likely developing now and should be easy to trigger through the day. Watch for new wind slabs in the mid and lower elevations [Read More]
Thu, February 16th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE above 1000′ today. Human triggered avalanches 1-2′ deep are possible in areas with lingering wind slabs from the Valentine’s Day storm. In areas closer to Prince William Sound that saw much heavier precipitation on Tuesday lingering storm snow avalanches up to 2′ deep are possible, even in areas sheltered from the wind. [Read More]
Wed, February 15th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 2,500′ and MODERATE below 2,500′. A fast moving storm deposited between 4-10″ of new snow with strong winds yesterday afternoon. Watch for easy to trigger wind slabs in the higher elevations. These slabs should be around 1-2′ deep. Additionally, there is a chance a larger avalanche could be triggered [Read More]
Tue, February 14th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger will be CONSIDERABLE at all elevations as a storm passes through our area today. Strong winds and periods of heavy snow will make human triggered avalanches 1-2′ deep likely, with natural activity possible. This storm will add stress to weak layers buried in the upper snowpack, making it possible that we will see larger [Read More]
Mon, February 13th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 2500′. It is likely that a person will be able to trigger an avalanche 1-2′ deep on fresh wind slabs that formed with last night’s northwest outflow winds. It is also still possible to trigger a bigger avalanche on lingering weak layers buried in the upper 2-4′ of the snowpack. The [Read More]
Sun, February 12th, 2023	Persistent Slabs	Wind Slabs	The avalanche danger is MODERATE at all elevations. Several different types of avalanches could be triggered today. In the lower and mid elevations, it is still possible to trigger a slab avalanche 1-2′ deep on steep slopes where the storm snow from last week has still not bonded well. In the higher elevations, watch for [Read More]
Sat, February 11th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 1000′ today. Continued snowfall and moderate winds will make natural avalanches 1-3′ deep possible and human triggered avalanches likely. Areas with recent wind loading are most likely to harbor touchy avalanche conditions. In addition, a crust layer buried about 1-2′ deep at elevations below 2000′ could cause avalanches in sheltered areas. [Read More]
Fri, February 10th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger will start off CONSIDERABLE and rise to HIGH today above 2500′. Strong winds and snowfall will make natural avalanches 1-3′ deep likely and human triggered avalanches very likely in areas with active wind loading. There is also a layer of buried surface hoar 2-4′ deep that could produce large avalanches in isolated [Read More]
Thu, February 9th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE above 1000′. Triggering a wind slab 1-2′ deep that is actively forming today or lingering from earlier this week is possible at upper elevations. These are most likely to be found along ridgelines and cross loaded gully features. A weak layer of buried surface hoar 2-4′ deep also exists and could still [Read More]
Wed, February 8th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE on all aspects above 1,000′. Triggering a lingering wind slab or storm slab composed of the new snow from Sunday/Monday may still be possible. These slabs would be in the 1-2′ deep range. Cornices are also a concern along ridgelines. Give these an extra wide berth. Additionally, there could still [Read More]
Tue, February 7th, 2023	Storm Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 1000′ today. Human triggered avalanches 1-2’+ deep in areas with recent wind loading or where there was a lot of recent storm snow (12″+) are still likely. It is also possible to trigger a larger avalanche on a layer of buried surface hoar 2-4′ deep. The snowpack needs some time [Read More]
Mon, February 6th, 2023	Storm Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE at all elevations. We’ve received 6-10″ new snow in the past 24 hours, with winds blowing 30-50 mph and gusting up to 75 mph. It is likely a person can trigger an avalanche up to 2′ deep within the new snow, and possible to trigger larger avalanches deeper in the snowpack. Dangerous [Read More]
Sun, February 5th, 2023	Storm Slabs	Persistent Slabs	The avalanche danger is expected to rise to HIGH at all elevations by this evening. Heavy snowfall and strong winds impacting the mountains through today and into tonight will create dangerous avalanche conditions. Natural avalanches are likely to occur and human triggered avalanches will be very likely. Travel in avalanche terrain is NOT recommended. A [Read More]
Sat, February 4th, 2023	Persistent Slabs		The avalanche danger remains MODERATE above 1000′. Large human triggered avalanches are possible on a buried weak layer of surface hoar 2-3′ deep. This layer exists across the forecast area and it is unpredictable where it can still produce avalanches. To avoid this problem we recommend sticking to lower angle terrain and being aware of any terrain [Read More]
Fri, February 3rd, 2023	Persistent Slabs		The avalanche danger is MODERATE above 1000′. It still may be possible for a person to trigger a large avalanche on a layer of surface hoar buried 2-3′ deep. We know this layer to be widespread throughout the forecast area and as such it is worth testing and identifying any features of concern before committing to big [Read More]
Thu, February 2nd, 2023	Persistent Slabs		The avalanche danger is MODERATE above 1000′. It is still possible for a person to trigger a large avalanche on a layer of surface hoar buried 2-3′ deep. This layer is widespread across the advisory area, which is keeping us sticking to smaller, low-consequence terrain free of terrain traps in case we find the slope where a [Read More]
Wed, February 1st, 2023	Persistent Slabs	Deep Persistent Slabs	The avalanche danger is MODERATE above 1000′. It remains possible that a person could trigger a slab avalanche around 2 feet deep that breaks on a hidden layer of buried surface hoar. Slopes at elevations above the surface crust are the most likely places to trigger a slide. The danger is LOW below 1000′ where the snowpack is [Read More]
Tue, January 31st, 2023	Persistent Slabs	Deep Persistent Slabs	The avalanche danger above 1,000’ today is MODERATE. A layer of surface hoar buried 2-3’ deep continues to be suspect and remains possible that a person can trigger a large avalanche on this layer. Below 1,000’ the avalanche danger is LOW where the forecast area sports a stiff surface crust or ice. SUMMIT LAKE: The Summit [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