When will Alyeska open for the 26/27 winter season?

NOAA's 2026-27 Winter Outlook predicts a warmer and generally drier winter for Alaska. Issued on October 15, 2026, the outlook forecasts warmer-than-average temperatures and elevated odds for drier-than-average precipitation across much of the state ^[1][2][3][4]. This forecast is primarily influenced by a strong to very strong El Niño, with a 63% chance of such an event occurring from November 2026 to January 2027 ^[1][2][3][4]. While the USDA Climate Hubs concur that El Niño typically leads to drier winters and higher temperatures in Alaska, the NOAA seasonal precipitation outlook for November 2026 to January 2027 also indicates a higher probability for above-normal precipitation for much of Alaska ^[4].

Alyeska's historical data reveals a distinct, positive snowfall pattern during El Niño winters. In contrast to the broader regional forecast, Z Rankings historical data, spanning 40 winters from 1986 to 2026, indicates that Alyeska receives significantly more snow during El Niño events ^[5]. Specifically, the resort gains 10% more snow in El Niño winters and 22% more in strong El Niño winters when compared to its 40-winter average ^[5]. This performance positions Alyeska as the #1 ranked Pacific Northwest & Alaska resort for El Niño snowfall, having demonstrated a strong positive snowfall response in three of the four strongest El Niño winters since 1986 ^[5]. This beneficial pattern for Alyeska stands as an exception to the typical regional El Niño snowfall trend, where 14 of 24 resorts usually experience reduced snow ^{[1][2][3][4][5]}.

Early Alyeska opening depends on sustained cold and significant snowfall. To open Alyeska Resort significantly before its November 28, 2026, target date, several specific weather patterns are required: sustained freezing temperatures at lower elevations, substantial snowfall events of at least 10 inches (approximately 25 cm) to establish an adequate base depth on lower runs, and favorable moisture patterns from the strong El Niño event to ensure precipitation falls as snow rather than rain ^[1]. As of November 7, 2026, Alyeska has recorded 210 cm of seasonal snowfall, which is 17% above the 30-year average for this period but 9% below the 5-year average ^[5]. The 6-day weather forecast, issued on November 6, 2026, predicts varied conditions, including light snow, followed by 25 cm of heavy snow on November 10, and then 33 mm of heavy rain on November 11, with maximum temperatures reaching 2°C, creating freeze-thaw conditions ^[6].

A strong El Niño event may increase early opening probabilities. The 2026-27 season is predicted to experience one of the strongest El Niño events on record. Historically, strong El Niño winters contribute to a 22% increase in snowfall at Alyeska, making these favorable moisture patterns critical for precipitation to remain as snow, particularly considering the anticipated freeze-thaw conditions ^[1][2][6]. Alyeska has previously opened as early as November 24, exemplified by the 2016-17 season ^[7]. As of late October 2026, prediction market odds from Kalshi indicated an 84% probability for Alyeska opening before November 22, 2026, and a 20% probability for opening before November 15, 2026 ^[3][4].

Historical Alyeska opening dates during El Niño winters are not consistently available. Specific opening dates for Alyeska during past strong El Niño winters, such as 1997-98, 2015-16, or 2023-24, are not available in the research, which prevents direct conclusions for the 2026-27 season based on these historical dates ^[5][6]. Snowfall performance during these past El Niño years has varied significantly. Alyeska experienced 45% above-average snowfall in both 1997-98 and 2015-16, but saw 29% below-average snowfall in 2023-24 ^[5]. ZRankings.com data further indicates Alyeska performed 19% above average in 1991-92, 29% above average in 1997-98, 35% above average in 2015-16, and 5% above average in 2023-24, compared to its own average during the four strongest El Niño winters since 1986 ^[6].

Alyeska's official opening for 2026-27 is November 28, 2026. Alyeska Resort's official Opening Day for the 2026-27 season is set for November 28, 2026 ^[1][2]. The 2026-27 El Niño is described as potentially historic, with a 75% chance of being a record event ^[3]. Despite this strong El Niño forecast, NOAA's U.S. Winter Outlook, released on October 15, 2026, indicates elevated odds for drier-than-average conditions and above-normal temperatures across much of Alaska during the 2026-27 winter ^[7][3]. Powderchasers.com suggests the strongest southern influence from the 2026-27 El Niño is expected during the core and later winter rather than at opening day, implying a slow start may occur ^[8].

Prediction markets offer insights into Alyeska's anticipated opening date. Prediction market odds from Kalshi in late October 2026 showed a 70% chance of Alyeska opening before November 29, 2026, and an 87% chance before December 6, 2026 ^[4]. The 'Will Alyeska open before Nov 22, 2026?' market, according to Frenzy Capital data, settled on November 28, 2026 ^[9].

Official public sources provide comprehensive daily snow depth and SNOTEL data relevant to Alyeska's base-building efforts. The NOAA/NWS Alaska River Forecast Center offers current snow depth data from remote automated NRCS-SNOTEL gages across Alaska, which includes 1-day, 3-day, and 7-day change metrics, alongside a daily snow coverage overlay from the National Ice Center ^[4]. Complementing this, the USDA NRCS SNOTEL network and the NWCC iMap application facilitate daily public access to critical snow depth, snow water equivalent (SWE), and precipitation data from automated gage stations. These resources specifically cover stations in Alaska relevant to the Chugach Mountains, where Alyeska Resort is situated ^[5].

Alyeska and third-party sites offer real-time and historical snow data for specific conditions. Alyeska Resort's own mountain report delivers up-to-the-hour updates on snow conditions, temperature, and weather forecasts ^[6]. Additionally, various third-party snow reporting websites provide relevant data. For example, OnTheSnow.com reported Alyeska Resort's base depth as 13 inches as of November 3, 2026 ^[1]. In contrast, Snow-Forecast.com listed Alyeska Resort's current upper and lower snow depths as 0 cm as of November 7, 2026 ^[2]. Ski.com further reported recent snowfall at Alyeska Resort, including 12.0 inches on October 20, 2026, and also provided forecasted snow for early November 2026 ^[3].

Alyeska's 2026-27 snowmaking upgrades will significantly improve base building in marginal temperatures. These planned enhancements are expected to extend the usable snowmaking window into wet-bulb temperature ranges where traditional snow guns are less effective, thereby facilitating faster base creation on key ski runs ^[2][3][4][1]. Modern high-efficiency fan guns can function at marginal wet-bulb temperatures of approximately -2 to 0°C (28-32°F) ^[1], and analysis indicates that a substantial portion of snowmaking hours and volume occur within similar marginal conditions ^[1].

The upgrades include new fan guns, a pump, and a comprehensive controls system. Specifically, the improvements consist of two new high-efficiency fan guns, a new high-capacity snowmaking pump, and a complete controls system overhaul ^[2][3][4][1]. One new fan gun, installed on a dedicated tower near Ted's Express, is designed to boost mid-mountain snowmaking coverage and production in intermediate elevations, areas often characterized by marginal snowmaking temperatures ^[2][4][5]. The enhanced controls system will enable more precise and efficient use of snowmaking windows, allowing operators to maximize production during short cold spells ^[2][3][4][1]. These improvements are projected to enable Alyeska to establish a 30-50 cm base on priority pistes in fewer days of marginal cold weather compared to its previous system ^[2][3][4][1]. Snowmaking operations are slated to commence on November 1, 2026, providing about four weeks to build the necessary base before the scheduled opening on November 28, 2026 ^[6][7][5].

Alyeska Resort's official Opening Day for the 2026/27 winter season is Saturday, November 28, 2026 ^{[1][2][3][4][5][6][7]}. Snowmaking commenced November 1, 2026 ^{[1][2][3][4][5][6][7]}. Early November 2026 saw Alyeska Resort record 25 inches of snowfall across 22 snow days, with 10 inches forecast in the subsequent 72 hours ^[8]. The first snow fell October 1, 2026, and the best single day was 3.8 inches on October 30 ^[8]. Prediction markets reflect strong confidence in the November 28 opening, with an 84% chance before November 22 ^[9]. The Girdwood community plans staggered reopenings, including Seven Glaciers restaurant and tram on December 4, and Double Musky Inn on December 10 ^[4].

A "super El Niño" is projected for the 2026-27 season, with NOAA's Climate Prediction Center assigning an 83%+ chance of a strong to very strong El Niño persisting through January-March 2027 ^[10]. There is an 83% chance that the October-December season will establish a record for any El Niño since 1950 ^[10]. For Alaska, this pattern typically brings a stormy fall with above-normal precipitation, according to NOAA's November 2026-January 2027 outlook, followed by a milder winter featuring variable snow quality, potential rain at lower slopes, and extended high-pressure periods leading to firm surfaces and icy crusts ^[11][12][10]. AccuWeather labeled the Pacific Northwest a "loser" for the 2026-27 El Niño season, forecasting inconsistent storm tracks with alternating snow and cold periods followed by dry and warmer conditions; the best chance for consistent snow is December to early January ^[13]. SnowSure forecasts an Early-November Pacific System (November 10-17) bringing 1-75cm of snow to Alyeska Resort (central estimate 36cm at the 1,201m summit), with 26mm of rain at lower elevations and the largest single day of 28cm on November 10 ^[14]. Alyeska's regular ski season is scheduled for 148 days, from November 28, 2026, through April 25, 2027 ^{[1][2][3][4][5][6][7]}. Specific operational periods include holiday night skiing from December 23 to January 7 and regular night skiing from January 12 to March 18 ^[3]. Alyeska Resort is part of the Ikon Pass network for 2026-27, providing up to 7 days of access without blackouts, though Ikon Pass blackout dates for the 26/27 season are December 26-30, 2026, January 16-17, 2027, and February 13-14, 2027 ^[15][16][17].