Surf Forecasts and Marine Weather - No Hype - Just the Facts!
Super El Nino - A Brutal Lie? - Video HERE (5/17/26)
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: 00Z Thu 21MAY2026
Day Frcst Time/Date 34.6 Deg Elev 32 Deg Elev 28 Deg Elev Srf Temp (F) Accum Snow (In)
Wed 05PM 20MAY26 8807 9952 10315 46.9 -
Wed 08PM 20MAY26 6885 8180 8692 33.5 N/A
Wed 11PM 20MAY26 6679 7023 8507 33.7 N/A
Thu 02AM 21MAY26 5503 6672 7217 30.9 N/A
Thu 05AM 21MAY26 5244 6422 6946 29.2 N/A
Thu 08AM 21MAY26 5398 6545 7011 31.0 N/A
Thu 11AM 21MAY26 6805 7061 8305 38.1 N/A
Thu 02PM 21MAY26 7141 8241 8608 41.3 N/A
Thu 05PM 21MAY26 8216 8452 8820 41.9 N/A
Thu 08PM 21MAY26 8189 8446 8844 30.0 N/A
Thu 11PM 21MAY26 8141 8458 8953 27.7 N/A
Fri 02AM 22MAY26 8125 8528 10019 28.6 N/A
Fri 05AM 22MAY26 8164 8563 10036 26.9 N/A
Fri 08AM 22MAY26 8389 8708 10089 42.8 N/A
Fri 11AM 22MAY26 8797 9937 10302 49.7 N/A
Fri 02PM 22MAY26 9880 10113 10476 51.0 N/A
Fri 05PM 22MAY26 9962 10210 10595 50.7 N/A
Fri 08PM 22MAY26 8436 8761 10282 39.0 N/A
Fri 11PM 22MAY26 8805 10093 10540 36.6 N/A
Sat 02AM 23MAY26 8745 10011 10508 34.4 N/A
Sat 05AM 23MAY26 9880 10153 10579 33.2 N/A
Sat 08AM 23MAY26 9948 10202 10596 47.5 N/A
Sat 11AM 23MAY26 10303 10542 11875 56.9 N/A
Sat 02PM 23MAY26 10754 11954 12319 61.2 N/A
Sat 05PM 23MAY26 10473 10784 12293 46.4 N/A
Sat 08PM 23MAY26 11792 12031 12401 44.8 N/A
Sat 11PM 23MAY26 10722 11934 12325 41.8 N/A
Sun 02AM 24MAY26 10585 11810 12270 40.6 N/A
Sun 05AM 24MAY26 10562 10810 12228 40.3 N/A
Sun 08AM 24MAY26 10588 11815 12305 55.9 N/A
Sun 11AM 24MAY26 10810 12009 12375 63.1 N/A
Sun 02PM 24MAY26 12073 12307 12671 66.7 N/A
Sun 05PM 24MAY26 12235 12463 13846 66.0 N/A
Sun 08PM 24MAY26 12166 12405 13801 53.6 N/A
Sun 11PM 24MAY26 12062 12320 12722 47.2 N/A
Mon 02AM 25MAY26 12002 12237 12603 45.0 N/A
Mon 05AM 25MAY26 11925 12185 12590 44.5 N/A
Mon 08AM 25MAY26 11995 12247 12638 60.4 N/A
Mon 11AM 25MAY26 12094 12334 12706 67.2 N/A
Mon 02PM 25MAY26 12377 12615 14008 69.6 N/A
Mon 05PM 25MAY26 12369 12614 14030 66.0 N/A
Mon 08PM 25MAY26 12318 12555 13961 51.6 N/A
Mon 11PM 25MAY26 12308 12568 13996 48.9 N/A
Tue 02AM 26MAY26 12207 12451 13865 47.3 N/A
Tue 05AM 26MAY26 12152 12410 13847 46.2 N/A
Tue 08AM 26MAY26 12080 12430 13944 60.2 N/A
Tue 11AM 26MAY26 12066 12328 12735 64.9 N/A
Tue 02PM 26MAY26 11982 12231 12619 63.0 N/A
Tue 05PM 26MAY26 11943 12241 12705 54.4 N/A
Tue 08PM 26MAY26 10421 10706 12264 47.8 N/A
Tue 11PM 26MAY26 10300 10703 12391 44.3 N/A
Wed 02AM 27MAY26 8330 8722 10262 38.4 N/A
Wed 05AM 27MAY26 6898 8095 8512 34.2 N/A
Wed 08AM 27MAY26 7114 8237 8622 38.5 N/A
Wed 11AM 27MAY26 7139 8256 8656 40.5 N/A
Wed 02PM 27MAY26 8287 8533 8916 42.1 N/A
Wed 05PM 27MAY26 8484 8734 10065 43.2 N/A
Wed 08PM 27MAY26 8381 8700 10075 37.2 N/A
Wed 11PM 27MAY26 8090 8501 10007 34.9 N/A
Thu 02AM 28MAY26 7169 8407 9881 34.9 N/A
Thu 05AM 28MAY26 6919 8307 9895 33.0 N/A
Thu 08AM 28MAY26 8291 8536 8917 41.2 N/A
Thu 11AM 28MAY26 8546 8773 10042 47.1 N/A
Thu 02PM 28MAY26 8782 9914 10286 51.3 N/A
Thu 05PM 28MAY26 9974 10211 10580 51.6 N/A
Thu 08PM 28MAY26 10061 10304 10682 40.8 N/A
Thu 11PM 28MAY26 8793 9995 10456 36.8 N/A
Fri 02AM 29MAY26 8634 8907 10202 35.4 N/A
Fri 05AM 29MAY26 8553 8836 10126 34.0 N/A
Fri 08AM 29MAY26 8547 8782 10064 46.4 N/A
Fri 11AM 29MAY26 8819 9963 10341 52.1 N/A
Fri 02PM 29MAY26 10086 10326 10698 56.4 N/A
Fri 05PM 29MAY26 10320 10557 11886 56.7 N/A
Fri 08PM 29MAY26 10211 10480 11917 43.6 N/A
Fri 11PM 29MAY26 10162 10593 12180 40.0 N/A
Sat 02AM 30MAY26 10250 10568 12110 39.0 N/A
Sat 05AM 30MAY26 10194 10516 12101 38.0 N/A
Sat 08AM 30MAY26 10279 10592 12203 54.6 N/A
Sat 11AM 30MAY26 10576 11784 12192 62.1 N/A
Sat 02PM 30MAY26 10766 11970 12346 64.6 N/A
Sat 05PM 30MAY26 11800 12034 12398 62.8 N/A

.
Contact | About | Disclaimer | Privacy
Advertise/Content | Links
Visit Mark Sponsler on Facebook Visit Stormsurf on Instagram Visit Stormsurf on YouTube
Copyright © 2026 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