Turnagain Pass Archives

Date	Problem #1	Problem #2	The Bottom Line
Wed, December 20th, 2023	Storm Slabs	Persistent Slabs	The avalanche danger is MODERATE at all elevations. Triggering an avalanche in the new 6-12″ of snow from last night is possible. Watch for shallow storm slabs and wind slabs that could be 1-2′ deep along the ridgelines. Dry loose snow sluffs will also be possible. The higher the new snow amounts are, the better [Read More]
Tue, December 19th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 1000’. Strong easterly winds will make natural and human triggered wind slab avalanches 1-2’ deep likely below ridgelines, rollovers, and across gully features. Below 1000’ the avalanche danger is MODERATE. Winds are not as likely to form slabs at this elevation, but there is a small chance of triggering [Read More]
Mon, December 18th, 2023	Persistent Slabs		Avalanche danger is MODERATE today. There is a lingering chance a person can trigger an avalanche 1-2′ deep failing within the new snow from the past few days, and a smaller chance of triggering a very big avalanche 3-5′ deep on weak snow buried deeper in the snowpack. These layers will be hard to assess, so the [Read More]
Sun, December 17th, 2023	Storm Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE today, and it is likely a person will be able to trigger an avalanche 1-3 feet deep in new and windblown snow from last night. This round of snow is adding more stress to a deeper weak layer of snow buried near the Thanksgiving crust, increasing the chances of larger avalanches failing [Read More]
Sat, December 16th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE at all elevations today. Strong winds and snowfall will impact the forecast area, with the stormy weather becoming most intense in the afternoon and evening. Natural and human triggered wind slab avalanches 1-3′ deep are likely on exposed features. In addition, a layer of weak snow buried 3-5′ deep could produce very [Read More]
Fri, December 15th, 2023	Wind Slabs	Persistent Slabs	Today’s avalanche danger is CONSIDERABLE above 2500′. Increasing winds will form fresh wind slabs 1-3′ deep that could cause natural and human triggered avalanches. In addition, a deeply buried weak layer (3-5′ deep) could cause very large avalanches in isolated areas. We recommend evaluating the snowpack conditions before committing to steep terrain. Below 2500′ the avalanche danger [Read More]
Thu, December 14th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE on slopes in the mid and upper elevations that saw over a foot of new snow yesterday. Wind slab avalanches are expected to be easy to trigger where winds have been, or will be today, depositing snow onto slopes over 30 degrees. Additionally, storm slab and loose snow avalanches may [Read More]
Wed, December 13th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger remains CONSIDERABLE in the higher elevations (above 2,500′). Another round of east winds and 2-6″ of new snow will make wind slab avalanches the main concern. Natural wind slabs 1-2′ deep will be possible and human triggered slabs likely on slopes with active wind loading. The danger is MODERATE at elevations below [Read More]
Tue, December 12th, 2023	Wind Slabs	Persistent Slabs	The avalanche danger is CONSIDERABLE above 1000′ today. Human triggered wind slabs 1-3’ deep will be the most likely avalanche to encounter on steeper wind exposed slopes. We recommend carefully evaluating wind loaded features before committing to steeper terrain. Additionally, it is possible to trigger a larger avalanche on a weak layer buried 3-4′ deep [Read More]
Mon, December 11th, 2023	Storm Slabs	Persistent Slabs	The avalanche danger is HIGH today. We received 1-1.5 feet of snow during the past 12 hours, making it very likely a person can trigger a very big avalanche today. The storm is passing this morning, but fresh storm and wind slabs will be extra touchy during the day, and there is the potential for very large [Read More]
Sun, December 10th, 2023	Wind Slabs		The avalanche danger is CONSIDERABLE today, rapidly rising to HIGH around sunset as an intense storm moves in. During the day, strong winds will make it easy to trigger wind slab avalanches 1-2′ deep, with increasing chances of natural avalanches through the day. It’s looking like things are going to get wild later, so pay attention to changing conditions [Read More]
Sat, December 9th, 2023	Wind Slabs		The avalanche danger is expected to rise to CONSIDERABLE today in the upper elevations (above 2,500′) due to increasing winds and light snowfall. Naturally occurring wind slab avalanches will be possible on the steeper slopes above the trees where winds are the strongest. In the mid elevations the danger is MODERATE where winds are not [Read More]
Fri, December 8th, 2023	Wind Slabs		The avalanche danger is MODERATE above 1000′ today. A fast-moving storm brought 4-6″ new snow with strong winds overnight, and a person might be able to trigger an avalanche up to a foot deep where the winds drifted that snow into sensitive slabs. Skies are looking to clear up this afternoon, so if you find yourself in [Read More]
Thu, December 7th, 2023	Wind Slabs		The avalanche danger is MODERATE on slopes at the mid and upper elevations (above 1,000′). Both lingering wind slabs from yesterday’s winds along with fresh wind slabs that could form this afternoon will be the main issue. A snow squall is forecast to bring 4-8″ of snow this evening along with east winds beginning sometime [Read More]
Wed, December 6th, 2023	Wind Slabs		The avalanche danger is MODERATE above 2,500’ today. Shallow wind slabs in the 1-2’ range will be possible to trigger in the upper elevations near ridge lines, convex rollovers and steeper gullies. There are some deeper layers in the snowpack that we’re keeping an eye on but will be unlikely for a person to trigger [Read More]
Tue, December 5th, 2023	Wind Slabs		The avalanche danger is MODERATE today above 1,000’. It will be possible to trigger a wind slab avalanche up to 2 feet deep as North and Northwest winds continue to redistribute the soft surface snow from last week’s storm. Upper elevations near ridge lines and convex rollovers on the lee side of terrain are where [Read More]
Mon, December 4th, 2023	Wind Slabs		The avalanche danger is MODERATE above 1000′ today, as east to north winds will still make it possible to trigger wind slab avalanches up to a foot deep. The most likely places to find unstable snow will be in upper elevations near ridgelines, convex rollovers, and steep gullies. Safe travel today will require taking the time to [Read More]
Sun, December 3rd, 2023	Wind Slabs		The avalanche danger is MODERATE above 2500′. Today’s weather is calm, but with last night’s moderate easterly winds you may be able to trigger an avalanche on steep, wind-loaded slopes today. If you are trying to get into steep terrain, be sure to take the time to identify and avoid slopes that have fresh slabs of stiffer [Read More]
Sat, December 2nd, 2023	Wind Slabs		The avalanche danger is MODERATE above 1000′ today. Cold and dry weather starting yesterday morning is giving the snowpack time to adjust after 2-3′ of new snow this week. We recommend assessing how well the new snow is bonding to the old snow surface before committing to steep terrain. Lingering wind slabs 1-2′ deep along ridgelines are [Read More]
Fri, December 1st, 2023	Storm Slabs		The avalanche danger is CONSIDERABLE at elevations above 1,000′. Today is the first day after a storm and the most likely time for people to trigger avalanches. These types of avalanches are storm slabs up to 3 feet thick or wind slabs from 1-6 feet thick. Due to the size, any avalanche triggered today will [Read More]
Thu, November 30th, 2023	Storm Slabs		The avalanche danger will remain HIGH at the upper elevations (above treeline, ~2,500′) and CONSIDERABLE below due to continued snowfall. New snow avalanches around 1-2 feet deep are expected to occur naturally on slopes in the high elevations and may also occur below 2,500′. At all elevations, it will be likely for a person to trigger [Read More]
Wed, November 29th, 2023	Storm Slabs		The avalanche danger will quickly rise to HIGH as a strong storm hits today. Strong winds and a foot or more of new snow will make very dangerous avalanche conditions. It will be very likely a person could trigger an avalanche, and we are expecting to see some natural activity as the storm unfolds. This is the [Read More]
Tue, November 28th, 2023	Wind Slabs		The avalanche danger is CONSIDERABLE above 1000′ today. Strong winds will make it easy for a person to trigger a wind slab avalanche around a foot deep, with the odds of natural avalanches increasing as the wind picks up through the day. Be especially cautious on convex rolls, near ridgelines, and in cross-loaded gullies. Avalanche danger [Read More]
Mon, November 27th, 2023	Wind Slabs	Wet Loose	Today’s avalanche danger is CONSIDERABLE above 2500′. Strong winds will form wind slabs that could cause natural or human triggered avalanches 1-2′ deep. We have little information about the alpine snowpack over the past week and recommend a cautious approach if you venture into higher elevation terrain. Below 2500′ the avalanche danger is MODERATE. Wet loose and [Read More]
Sun, November 26th, 2023	Wet Loose	Wind Slabs	The avalanche danger is CONSIDERABLE above 2500′. We have very limited information from the alpine due to a series of warm, wet storms impacting the forecast area this week. Human triggered avalanches 1-2′ deep within the new storm snow are likely at upper elevations today. Below 2500′ the avalanche danger is MODERATE. Rain and wet [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