Summit blend, next 14 days

Summit point at 11,068 ft · issued 8:00 p.m. MT Oct 19 · 9 models: ECMWF IFS 0.25°, GEM, HRRR, GFS, ICON, JMA, ARPEGE/AROME, NBM (CONUS), UKMO.

Next 48 h: 0″
Next 7 days: 2.2″
Next 14 days: 2.3″
Biggest day: 2.2″ on Fri, Oct 23

Day	Snow (median)	Low – high	High / low	Precip	Gust	Models
Today	–	–	44° / 29°	6%	19 mph	9
Tue, Oct 20	–	–	44° / 31°	10%	19 mph	9
Wed, Oct 21	–	–	45° / 31°	21%	25 mph	8
Thu, Oct 22	–	–	45° / 33°	91%	28 mph	8
Fri, Oct 23	2.2″	0.7″ – 4.4″	36° / 24°	98%	30 mph	7
Sat, Oct 24	–	0″ – 0.4″	33° / 23°	47%	14 mph	7
Sun, Oct 25	–	–	39° / 22°	4%	19 mph	7
Mon, Oct 26	–	–	39° / 28°	11%	14 mph	5
Tue, Oct 27	–	0″ – 1″	37° / 28°	21%	20 mph	5
Wed, Oct 28	–	0″ – 0.8″	37° / 29°	21%	17 mph	5
Thu, Oct 29	–	0″ – 0.4″	37° / 30°	35%	18 mph	4
Fri, Oct 30	–	–	38° / 29°	50%	17 mph	2
Sat, Oct 31	–	0″ – 0.1″	37° / 28°	50%	19 mph	2
Sun, Nov 1	–	–	36° / 26°	42%	15 mph	2

Every model at the summit (9 runs) — snowfall in inches per day

Model	Issued	Horizon	10-21	10-22	10-23	10-24	10-25	10-26	10-27	10-28	10-29	10-30	10-31	11-01
ECMWF IFS 0.25°ECMWF	8:00 p.m. MT Oct 19	14 d	0	0	0	0	0	0	0	0	0	0	0	0
GEMEnvironment Canada	8:00 p.m. MT Oct 19	10 d	0	0	4.4	0	0	0	0	0	–	–	–	–
HRRRNOAA NCEP	8:00 p.m. MT Oct 19	2 d	–	–	–	–	–	–	–	–	–	–	–	–
GFSNOAA NCEP	8:00 p.m. MT Oct 19	14 d	0	0	1.4	0	0	0	0	0	0	0	0.1	0
ICONDWD	8:00 p.m. MT Oct 19	7 d	0	0	0	0	0	–	–	–	–	–	–	–
JMAJapan Meteorological Agency	8:00 p.m. MT Oct 19	11 d	0	0	4.4	0.9	0	0	3.1	0.8	0	–	–	–
ARPEGE/AROMEMétéo-France	8:00 p.m. MT Oct 19	4 d	0	0	–	–	–	–	–	–	–	–	–	–
NBM (CONUS)NOAA NCEP	8:00 p.m. MT Oct 19	11 d	0	0.2	6.6	0.4	0.1	0.3	1	1	1.5	–	–	–
UKMOUK Met Office	8:00 p.m. MT Oct 19	7 d	0	0	2.2	0.4	0	–	–	–	–	–	–	–

A dash means the model does not reach that day. Runs are the newest per model within 36 hours.

Base blend, next 14 days

Base point at 8,530 ft · issued 8:00 p.m. MT Oct 19 · 9 models: ECMWF IFS 0.25°, GEM, HRRR, GFS, ICON, JMA, ARPEGE/AROME, NBM (CONUS), UKMO.

Next 48 h: 0″
Next 7 days: 1.3″
Next 14 days: 1.4″
Biggest day: 1.3″ on Fri, Oct 23

Day	Snow (median)	Low – high	High / low	Precip	Gust	Models
Today	–	–	53° / 38°	7%	19 mph	9
Tue, Oct 20	–	–	53° / 41°	11%	19 mph	9
Wed, Oct 21	–	–	54° / 41°	25%	25 mph	8
Thu, Oct 22	–	–	54° / 42°	90%	28 mph	8
Fri, Oct 23	1.3″	0″ – 2.1″	44° / 32°	98%	30 mph	7
Sat, Oct 24	–	0″ – 0.1″	42° / 30°	47%	15 mph	7
Sun, Oct 25	–	–	48° / 31°	4%	19 mph	7
Mon, Oct 26	–	–	49° / 37°	11%	15 mph	5
Tue, Oct 27	–	0″ – 0.5″	47° / 37°	21%	20 mph	5
Wed, Oct 28	–	0″ – 0.4″	46° / 38°	21%	18 mph	5
Thu, Oct 29	–	0″ – 0.1″	46° / 38°	35%	18 mph	4
Fri, Oct 30	–	0″ – 0.1″	48° / 38°	50%	17 mph	2
Sat, Oct 31	–	0″ – 0.1″	46° / 37°	50%	19 mph	2
Sun, Nov 1	–	–	45° / 35°	42%	15 mph	2

Every model at the base (9 runs) — snowfall in inches per day

Model	Issued	Horizon	10-21	10-22	10-23	10-24	10-25	10-26	10-27	10-28	10-29	10-30	10-31	11-01
ECMWF IFS 0.25°ECMWF	8:00 p.m. MT Oct 19	14 d	0	0	0	0	0	0	0	0	0	0	0	0
GEMEnvironment Canada	8:00 p.m. MT Oct 19	10 d	0	0	4.4	0	0	0	0	0	–	–	–	–
HRRRNOAA NCEP	8:00 p.m. MT Oct 19	2 d	–	–	–	–	–	–	–	–	–	–	–	–
GFSNOAA NCEP	8:00 p.m. MT Oct 19	14 d	0	0	1.4	0	0	0	0	0	0	0.1	0.1	0
ICONDWD	8:00 p.m. MT Oct 19	7 d	0	0	0	0	0	–	–	–	–	–	–	–
JMAJapan Meteorological Agency	8:00 p.m. MT Oct 19	11 d	0	0	0	0	0	0	3.1	0.8	0	–	–	–
ARPEGE/AROMEMétéo-France	8:00 p.m. MT Oct 19	4 d	0	0	–	–	–	–	–	–	–	–	–	–
NBM (CONUS)NOAA NCEP	8:00 p.m. MT Oct 19	11 d	0	0	2.9	0.2	0.1	0.1	0.5	0.4	0.5	–	–	–
UKMOUK Met Office	8:00 p.m. MT Oct 19	7 d	0	0	1.4	0.4	0	–	–	–	–	–	–	–

A dash means the model does not reach that day. Runs are the newest per model within 36 hours.

How to read this page

Per day, the median snowfall across the models that reach that day (ECMWF IFS, GFS, GEM, ICON, JMA, Météo-France, UKMO, plus NBM and HRRR for US points), fetched every 6 hours from Open-Meteo at the resort's summit and base elevations; the low/high band is the 25th/75th percentile across models, so a wide band means the models disagree.

Verification scores appear once the daily scorer has graded a run against a measured day. How the blend is built and verified.

Weather data by Open-Meteo.com (CC BY 4.0). Updated every 6 hours.

Alta Ski Area snow forecast

Summit blend, next 14 days

Base blend, next 14 days

How to read this page