Surf Forecasts and Marine Weather - No Hype - Just the Facts!
PDO Rises, Warm Water Pushes East, But... - Video Forecast HERE (12/14/25)
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 Fri 19DEC2025
Day Frcst Time/Date 34.6 Deg Elev 32 Deg Elev 28 Deg Elev Srf Temp (F) Accum Snow (In)
Fri 05AM 19DEC25 6929 8180 8793 32.2 -
Fri 08AM 19DEC25 7182 8444 9978 33.2 0.0
Fri 11AM 19DEC25 8133 8440 8918 35.7 0.0
Fri 02PM 19DEC25 8254 8531 8964 36.6 0.0
Fri 05PM 19DEC25 6832 7184 8543 32.1 0.3
Fri 08PM 19DEC25 3809 4952 5516 22.1 1.2
Fri 11PM 19DEC25 2394 3146 3764 15.7 0.0
Sat 02AM 20DEC25 703 1463 2632 9.6 0.0
Sat 05AM 20DEC25 577 1339 2510 9.4 0.0
Sat 08AM 20DEC25 689 1451 2622 9.9 0.0
Sat 11AM 20DEC25 3451 3819 5162 21.6 0.0
Sat 02PM 20DEC25 3688 4835 5398 23.3 0.0
Sat 05PM 20DEC25 1478 2236 3319 13.0 0.0
Sat 08PM 20DEC25 899 1659 2826 11.3 0.0
Sat 11PM 20DEC25 1028 1789 2955 11.9 0.0
Sun 02AM 21DEC25 1622 2374 3387 13.8 0.0
Sun 05AM 21DEC25 3193 3584 4930 19.0 0.0
Sun 08AM 21DEC25 3799 4942 5507 22.9 0.0
Sun 11AM 21DEC25 5353 6542 7140 28.5 0.0
Sun 02PM 21DEC25 5529 6669 7164 29.9 0.0
Sun 05PM 21DEC25 5181 5545 7093 27.1 0.0
Sun 08PM 21DEC25 5021 5384 6945 26.0 0.0
Sun 11PM 21DEC25 5142 5505 6957 27.0 0.0
Mon 02AM 22DEC25 5346 6537 7148 28.3 0.0
Mon 05AM 22DEC25 5514 6692 8119 29.5 1.8
Mon 08AM 22DEC25 5536 6769 8227 29.2 0.0
Mon 11AM 22DEC25 6413 6720 7198 31.0 0.0
Mon 02PM 22DEC25 6551 6858 8175 32.0 0.0
Mon 05PM 22DEC25 5060 5425 6888 26.6 0.0
Mon 08PM 22DEC25 3877 5019 6401 23.7 0.0
Mon 11PM 22DEC25 3870 5012 6397 23.4 0.0
Tue 02AM 23DEC25 5066 5430 7081 26.6 0.0
Tue 05AM 23DEC25 5297 6485 7102 28.3 2.3
Tue 08AM 23DEC25 5413 6585 7127 29.3 2.4
Tue 11AM 23DEC25 6440 6753 8102 31.3 2.5
Tue 02PM 23DEC25 6532 6838 8199 32.1 0.0
Tue 05PM 23DEC25 5548 6732 8179 30.2 0.0
Tue 08PM 23DEC25 6409 6822 8368 30.5 2.9
Tue 11PM 23DEC25 6758 7175 8633 32.2 0.0
Wed 02AM 24DEC25 5484 7220 8866 29.2 0.0
Wed 05AM 24DEC25 5095 5459 8686 26.2 0.0
Wed 08AM 24DEC25 4912 5275 9920 24.8 0.0
Wed 11AM 24DEC25 6965 8143 8613 34.9 0.0
Wed 02PM 24DEC25 7084 8231 8642 35.9 0.0
Wed 05PM 24DEC25 6897 8107 8590 33.4 3.2
Wed 08PM 24DEC25 6718 7104 8572 31.8 3.8
Wed 11PM 24DEC25 6560 6941 8455 31.0 6.5
Thu 02AM 25DEC25 6404 6837 8422 29.9 0.0
Thu 05AM 25DEC25 5273 6447 6955 28.1 0.0
Thu 08AM 25DEC25 5089 5454 6875 26.8 0.0
Thu 11AM 25DEC25 5497 6631 7104 30.3 0.0
Thu 02PM 25DEC25 6507 6815 8154 31.5 0.0
Thu 05PM 25DEC25 5302 6506 7227 27.9 7.4
Thu 08PM 25DEC25 5451 6666 8169 28.8 7.8
Thu 11PM 25DEC25 5462 6680 8194 28.8 9.1
Fri 02AM 26DEC25 6499 6887 8347 30.4 12.5
Fri 05AM 26DEC25 5203 5568 7086 26.5 0.0
Fri 08AM 26DEC25 4893 5255 6771 24.3 13.4
Fri 11AM 26DEC25 5158 5522 6876 27.1 0.0
Fri 02PM 26DEC25 5205 5569 6883 27.5 0.0
Fri 05PM 26DEC25 2645 3317 3886 16.2 0.0
Fri 08PM 26DEC25 2417 3167 3776 16.1 0.0
Fri 11PM 26DEC25 3142 3560 4907 18.7 0.0
Sat 02AM 27DEC25 3437 3804 5146 20.7 14.0
Sat 05AM 27DEC25 2053 2805 3596 14.6 0.0
Sat 08AM 27DEC25 2215 2965 3675 15.4 0.0
Sat 11AM 27DEC25 3347 3715 5059 20.8 0.0
Sat 02PM 27DEC25 3653 4800 5362 22.9 0.0
Sat 05PM 27DEC25 985 1745 2908 10.8 0.0
Sat 08PM 27DEC25 0 956 2130 8.4 0.0
Sat 11PM 27DEC25 0 447 1623 7.0 0.0
Sun 02AM 28DEC25 0 0 1436 6.4 0.0
Sun 05AM 28DEC25 0 748 1924 7.6 0.0
Sun 08AM 28DEC25 0 954 2125 7.9 0.0
Sun 11AM 28DEC25 3700 4844 5408 23.5 0.0
Sun 02PM 28DEC25 4986 5349 6696 27.0 0.0
Sun 05PM 28DEC25 2369 3120 3752 14.2 0.0
Sun 08PM 28DEC25 851 1613 2780 9.8 0.0
Sun 11PM 28DEC25 791 1551 2721 9.9 0.0
Mon 02AM 29DEC25 0 1006 2178 8.0 0.0
Mon 05AM 29DEC25 0 0 1509 6.0 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