Surf Forecasts and Marine Weather - No Hype - Just the Facts!
The Transition Stabilizes - But What's the Future Hold? - Video Forecast HERE (11/30/25)
Buoys | Buoy Forecast | Bulletins | Models: Wave - Weather - Surf - Altimetry - Snow | Pacific Forecast | QuikCAST | El Nino | Tutorials | Great Circles | Video

Google
Create Your Own Surf Forecast
Swell Calculator
Swell Decay Tables
Sea Height Tables
Swell Category Table
.

Big_Sky - Snow Level Forecast
Location: 45.28N 111.45W
Base Elevation: 6800 ft
Peak Elevation: 11166 ft

 

240 hour GFS Model (0.25 deg) - 3 hr incrememts

 

Data

Initialized: 12Z Wed 03DEC2025
Day Frcst Time/Date 34.6 Deg Elev 32 Deg Elev 28 Deg Elev Srf Temp (F) Accum Snow (In)
Wed 05AM 03DEC25 1903 2658 3525 15.7 -
Wed 08AM 03DEC25 1417 2172 3289 13.5 0.0
Wed 11AM 03DEC25 3497 3865 5208 22.7 0.0
Wed 02PM 03DEC25 4881 5245 6580 26.5 0.0
Wed 05PM 03DEC25 1628 2382 3390 13.3 0.0
Wed 08PM 03DEC25 1005 1764 2929 11.7 0.0
Wed 11PM 03DEC25 808 1568 2738 11.3 0.0
Thu 02AM 04DEC25 1201 1957 3123 12.7 0.0
Thu 05AM 04DEC25 819 1580 2747 11.2 0.0
Thu 08AM 04DEC25 551 1313 2483 10.4 0.0
Thu 11AM 04DEC25 3158 3568 4915 20.2 0.0
Thu 02PM 04DEC25 3466 3835 5177 21.8 0.0
Thu 05PM 04DEC25 2634 3312 3880 17.6 0.0
Thu 08PM 04DEC25 2505 3249 3819 17.3 0.4
Thu 11PM 04DEC25 2696 3341 3912 17.9 1.0
Fri 02AM 05DEC25 2956 3470 4819 18.7 1.8
Fri 05AM 05DEC25 3205 3590 4936 19.3 2.3
Fri 08AM 05DEC25 3485 3854 5195 20.9 2.9
Fri 11AM 05DEC25 5057 5420 6755 27.2 3.1
Fri 02PM 05DEC25 5287 6458 6950 28.3 0.0
Fri 05PM 05DEC25 4864 5227 6616 24.5 3.8
Fri 08PM 05DEC25 3643 4790 5352 20.5 0.0
Fri 11PM 05DEC25 5053 5417 6820 25.8 4.5
Sat 02AM 06DEC25 4989 5353 6723 25.5 4.9
Sat 05AM 06DEC25 3245 3613 4959 17.7 0.0
Sat 08AM 06DEC25 3759 4904 5466 22.2 0.0
Sat 11AM 06DEC25 5040 5403 6738 26.6 0.0
Sat 02PM 06DEC25 5083 5447 6762 27.1 5.3
Sat 05PM 06DEC25 3682 4828 5391 20.6 0.0
Sat 08PM 06DEC25 1729 2488 3440 12.8 0.0
Sat 11PM 06DEC25 3278 3645 4990 18.7 0.0
Sun 02AM 07DEC25 1711 2466 3431 13.4 0.0
Sun 05AM 07DEC25 1574 2328 3366 13.2 0.0
Sun 08AM 07DEC25 1550 2306 3353 13.6 0.0
Sun 11AM 07DEC25 3587 3955 5295 23.0 0.0
Sun 02PM 07DEC25 3917 5058 6435 25.1 0.0
Sun 05PM 07DEC25 3062 3521 4868 19.3 0.0
Sun 08PM 07DEC25 3161 3569 4915 19.6 0.0
Sun 11PM 07DEC25 3487 3856 5197 21.6 0.0
Mon 02AM 08DEC25 3429 3796 5138 21.1 0.0
Mon 05AM 08DEC25 3192 3584 4930 19.3 0.0
Mon 08AM 08DEC25 2801 3394 3964 18.4 0.0
Mon 11AM 08DEC25 5258 6447 7101 29.5 0.0
Mon 02PM 08DEC25 5264 6459 7188 29.3 0.0
Mon 05PM 08DEC25 3796 4940 5503 23.8 0.0
Mon 08PM 08DEC25 3917 5058 8330 24.5 0.0
Mon 11PM 08DEC25 3868 5010 5573 24.2 0.0
Tue 02AM 09DEC25 4804 5167 6961 25.3 0.0
Tue 05AM 09DEC25 5088 5452 8350 27.1 0.0
Tue 08AM 09DEC25 5392 6723 8659 28.8 0.0
Tue 11AM 09DEC25 7222 8395 8883 36.0 0.0
Tue 02PM 09DEC25 8135 8406 8829 36.8 0.0
Tue 05PM 09DEC25 6881 8100 8591 33.5 5.6
Tue 08PM 09DEC25 5269 6460 7121 27.5 6.0
Tue 11PM 09DEC25 5062 5426 6828 27.0 6.3
Wed 02AM 10DEC25 6868 8241 8967 32.3 0.0
Wed 05AM 10DEC25 7182 8524 10180 33.6 0.0
Wed 08AM 10DEC25 8430 8754 10250 37.4 0.0
Wed 11AM 10DEC25 8529 8832 10300 39.4 0.0
Wed 02PM 10DEC25 8572 8889 10393 39.1 0.0
Wed 05PM 10DEC25 8665 8965 10462 39.8 0.0
Wed 08PM 10DEC25 8614 8915 10397 40.0 0.0
Wed 11PM 10DEC25 8650 8970 10735 39.4 0.0
Thu 02AM 11DEC25 8538 8831 10315 38.7 0.0
Thu 05AM 11DEC25 8290 8591 9999 36.3 0.0
Thu 08AM 11DEC25 8214 8610 10518 34.9 0.0
Thu 11AM 11DEC25 8326 8594 9923 38.1 0.0
Thu 02PM 11DEC25 7075 8290 8862 34.6 6.9
Thu 05PM 11DEC25 6826 7191 8762 32.5 8.4
Thu 08PM 11DEC25 6463 6813 8293 29.8 11.0
Thu 11PM 11DEC25 5290 6467 7013 27.2 14.2
Fri 02AM 12DEC25 3720 4865 5427 21.6 17.0
Fri 05AM 12DEC25 3545 3914 5255 20.4 19.7
Fri 08AM 12DEC25 3869 5011 6392 22.5 20.3
Fri 11AM 12DEC25 4932 5296 6656 25.0 20.5
Fri 02PM 12DEC25 3973 5113 6487 23.4 21.3
Fri 05PM 12DEC25 2809 3398 3966 16.7 22.7
Fri 08PM 12DEC25 838 1596 2767 10.4 23.7
Fri 11PM 12DEC25 1547 2304 3353 12.7 24.0
Sat 02AM 13DEC25 0 724 1900 6.4 24.2
Sat 05AM 13DEC25 0 761 1933 6.9 0.0

.
Contact | About | Disclaimer | Privacy
Advertise/Content | Links
Visit Mark Sponsler on Facebook Visit Stormsurf on Instagram Visit Stormsurf on YouTube
Copyright © 2025 STORMSURF - All Rights Reserved
This page cannot be duplicated, reused or framed in another window without express written permission.
But links are always welcome.
Buoys | Buoy Forecast | Bulletins | Models: Wave - Weather - Surf - Altimetry - Snow | Pacific Forecast | QuikCAST | El Nino | Tutorials | Great Circles | Calculator