Turnagain Pass Archives

Date	Problem #1	Problem #2	The Bottom Line
Tue, January 18th, 2022	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE in the Alpine, above ~2,500′. Watch for both new wind slabs (due to moderate east winds expected today) and old wind slabs (formed by last week’s strong east winds). New slabs should be small/shallow and easy to trigger (~6-8″ deep) while the older wind slabs are closer to 1-2+’ deep [Read More]
Mon, January 17th, 2022	Wind Slabs	Persistent Slabs	The avalanche danger is MODERATE on all aspects above 1,000′. It remains possible that a person could trigger an older wind slab avalanche on slopes with prior wind loading. Wind slabs are in the 1-2′ thick realm and could be fairly stiff. Triggering a larger slab avalanche breaking near crusts 2-4+’ deep is becoming less [Read More]
Sun, January 16th, 2022	Persistent Slabs		The avalanche danger remains CONSIDERABLE above 2500′, where a thick slab of snow from this week’s storms sits on top of weak snow buried 2-5′ deep. With limited access to the alpine since the snow started falling earlier in the week, it is unclear just how sensitive this setup will be to human triggers. As skies [Read More]
Sat, January 15th, 2022	Wind Slabs	Persistent Slabs	The avalanche danger remains CONSIDERABLE above 1000′ today. Strong winds and plenty of new snow this week has made it likely for a person to trigger an avalanche 2-5′ deep on wind loaded slopes. In wind protected areas human triggered avalanches are possible on a layer of weak sugary snow above a buried crust about 2′ deep, [Read More]
Fri, January 14th, 2022	Wind Slabs	Persistent Slabs	Today’s avalanche danger is CONSIDERABLE above 1000′, and it is likely a person could trigger an avalanche 2-5′ deep or deeper following yesterday’s heavy snowfall and continued strong winds today. Human-triggered avalanches will be most likely on wind-loaded slopes, but it will also be possible to trigger a large avalanche on protected slopes, failing on weak snow [Read More]
Thu, January 13th, 2022	Storm Slabs		The avalanche danger will rise to HIGH today above 1000′. A strong storm system is impacting the forecast area throughout the day with 12 to 24″ of new snowfall and strong winds. Natural avalanches 2-5′ deep are likely and human triggered avalanches are very likely. Very dangerous avalanches conditions exist and we recommend avoiding avalanche terrain and [Read More]
Wed, January 12th, 2022	Wind Slabs		The avalanche danger remains CONSIDERABLE on all aspects above 2,500′. Another round of easterly winds with light snowfall may cause a few natural wind slab avalanches and human triggered wind slabs will be likely. These slabs are 1-3′ thick, composed of Monday’s storm snow, and sitting on a weak surface. Below 2,500′ the danger is [Read More]
Tue, January 11th, 2022	Wind Slabs		Today’s avalanche danger is CONSIDERABLE above 2500′, where yesterday’s heavy snowfall and strong winds have built sensitive slabs on top of weak snow surfaces. It is likely a person can trigger a large avalanche 1-3′ deep, and cautious route finding will be essential. This means avoiding traveling on or below steep slopes, especially just below [Read More]
Mon, January 10th, 2022	Storm Slabs		The avalanche danger is CONSIDERABLE today. Strong winds and up to a foot of new snow on top of weak surfaces will lead to dangerous avalanche conditions. It is likely a person could trigger a large avalanche 2′ deep or deeper and large natural avalanches will be possible. Cautious route finding will be essential today, which means [Read More]
Sun, January 9th, 2022	Wind Slabs		The avalanche danger will be MODERATE today above 1000′ during the daylight hours, but heavy snowfall and strong winds impacting the area starting this afternoon will be increasing the danger to CONSIDERABLE overnight. In the morning, before the snowfall and winds pick up, human triggered avalanches up to a foot deep will be possible in areas that [Read More]
Sat, January 8th, 2022	Wind Slabs		The avalanche danger will rise to MODERATE above 2500′ today, where increased winds could cause fresh wind slabs up to a foot deep to form and be possible for a person to trigger. With a limited amount of snow available for wind transport right now we expect that wind slabs will be relatively small, but due to [Read More]
Fri, January 7th, 2022	Normal Caution		The avalanche danger remains LOW at all elevations. Triggering an avalanche is unlikely in the majority of the forecast zone. There could still be a chance however a person might find and trigger a small old wind slab on a crust in upper elevation steep terrain. Additionally, small sluffs on steep slopes harboring several inches [Read More]
Thu, January 6th, 2022	Normal Caution		The avalanche danger is LOW on all aspects and elevations today. Triggering an avalanche is unlikely, but lingering wind slabs in steep terrain could still exist. The winds died down as of Monday so these pockets of wind slab should be stubborn to trigger. On steep terrain 3-5″ of new snow on top of an ice [Read More]
Wed, January 5th, 2022	Normal Caution		There is a generally LOW avalanche danger at all elevations. Although triggering an avalanche is unlikely, there are still some hazards to watch out for. Old wind slabs sitting on a crust could be found scattered about in upper elevation steep terrain. These slabs should be small and somewhat stubborn to trigger. Additionally, sluffs on [Read More]
Tue, January 4th, 2022	Wind Slabs		The avalanche danger remains MODERATE above 2,500′ on slopes that have been wind loaded by last weekend’s winds. Triggering a lingering wind slab, up to a foot thick, sitting on a slick crust will be possible. These slabs are scattered around the Alpine terrain and should be fairly easy to spot and could look like [Read More]
Mon, January 3rd, 2022	Wind Slabs		The avalanche danger is MODERATE above 2500′ where it will be possible to trigger a lingering wind slab around a foot deep. Look for signs of recent wind loading on the snow surface and shooting cracks to locate areas that have sensitive wind slabs. Just under the surface there is an icy crust that is making for [Read More]
Sun, January 2nd, 2022	Wind Slabs		The avalanche danger remains MODERATE on all aspects above 1,000′. Triggering a wind slab avalanche, up to a foot thick, will be possible on slopes that saw wind loading yesterday or may see active loading today. Small shallow sluffs will also be possible to trigger on steep slopes. Even a small wind slab or sluff [Read More]
Sat, January 1st, 2022	Wind Slabs		The avalanche danger is MODERATE above 1000′, where moderate NW winds will transport the 3-5″ of new snow into fresh wind slabs up to 1′ deep. Human triggered avalanches are possible on wind loaded features and avalanches could run fast on an icy bed surface. Look for signs of wind transport on the snow surface, hollow [Read More]
Fri, December 31st, 2021	Wind Slabs		The avalanche danger is MODERATE above 2500′ as a weak system brings snow showers and wind to the area today. It is possible a person could trigger an avalanche up to a foot deep on fresh wind slabs forming in the alpine. These will most likely be found just below ridgetops, steep rollovers, and in gullies. Pay [Read More]
Thu, December 30th, 2021	Normal Caution		The avalanche danger is LOW today at all elevations. In steep terrain at higher elevations where we saw strong winds yesterday a person could trigger an isolated wind slab up to 1′ deep. The warm and wet weather from earlier this week has created a widespread melt/rain crust on the surface. This crust makes for challenging travel [Read More]
Wed, December 29th, 2021	Deep Persistent Slabs		The avalanche danger will remain MODERATE above 1,000′ on all aspects. Cooling temperatures will be helping to freeze and stabilize the snowpack, yet strong westerly winds may be enough to create new wind slabs in the Alpine. Be cautious on slopes that are still moist/wet from the warm temperatures, especially where the snowpack is shallow, [Read More]
Tue, December 28th, 2021	Deep Persistent Slabs		The avalanche danger remains MODERATE on all aspects and elevations. Warm temperatures again today will make it possible to trigger a wet loose avalanche or a larger more dangerous slab avalanche that could break in buried weak layers. Areas with a shallow snowpack, mostly found on the southern end of the forecast zone, are the [Read More]
Mon, December 27th, 2021	Wind Slabs	Deep Persistent Slabs	Today’s avalanche danger is MODERATE. Westerly winds picked up yesterday evening and are expected to continue to create a fresh round of wind slabs through the day. Combined with the above-freezing temperatures since yesterday morning, it is possible a person could trigger an avalanche near the surface up to a foot deep. It is also possible [Read More]
Sun, December 26th, 2021	Deep Persistent Slabs		Today’s avalanche danger is MODERATE above 1000′. A weak but warm system is expected to bring light rain all the way up to ridgetops, but it does not look like there will be enough moisture to increase avalanche danger. The main concern is the lingering possibility of triggering an avalanche on weak faceted snow buried 2-5′ deep. [Read More]
Sat, December 25th, 2021	Wind Slabs	Deep Persistent Slabs	The avalanche danger is MODERATE above 1000′. It will be possible to trigger avalanches 1-2′ deep in areas that saw wind loading over the past two days. Strong winds out of the northwest on 12.23 and 12.24 have created sensitive conditions on a variety of aspects and elevations. Evaluate terrain carefully, especially on common wind [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