Surf Forecasts and Marine Weather - No Hype - Just the Facts!
How Warm Will the NINO3.4 Region Get....Exactly? - Video HERE (8/16/26)
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: 12Z Thu 20AUG2026
Day Frcst Time/Date 34.6 Deg Elev 32 Deg Elev 28 Deg Elev Srf Temp (F) Accum Snow (In)
Thu 05AM 20AUG26 13869 14188 14686 52.1 -
Thu 08AM 20AUG26 13933 14204 14625 67.0 N/A
Thu 11AM 20AUG26 13938 14194 14593 77.0 N/A
Thu 02PM 20AUG26 14102 14332 14689 81.0 N/A
Thu 05PM 20AUG26 14290 14516 17106 79.9 N/A
Thu 08PM 20AUG26 14358 14599 17222 66.1 N/A
Thu 11PM 20AUG26 14356 14636 17327 60.5 N/A
Fri 02AM 21AUG26 14342 14622 17313 58.5 N/A
Fri 05AM 21AUG26 14326 14590 17253 56.2 N/A
Fri 08AM 21AUG26 14275 14548 17221 69.3 N/A
Fri 11AM 21AUG26 14265 14512 17138 79.9 N/A
Fri 02PM 21AUG26 14306 14554 17187 83.1 N/A
Fri 05PM 21AUG26 14439 14696 17353 80.7 N/A
Fri 08PM 21AUG26 14506 14742 17369 63.9 N/A
Fri 11PM 21AUG26 14493 14726 17347 62.5 N/A
Sat 02AM 22AUG26 14130 14366 14733 60.3 N/A
Sat 05AM 22AUG26 14235 14477 14853 59.1 N/A
Sat 08AM 22AUG26 14106 14368 14777 71.1 N/A
Sat 11AM 22AUG26 14104 14364 14770 79.4 N/A
Sat 02PM 22AUG26 14261 14502 17118 81.5 N/A
Sat 05PM 22AUG26 14247 14528 17213 73.4 N/A
Sat 08PM 22AUG26 14240 14563 17322 56.1 N/A
Sat 11PM 22AUG26 13940 14258 14754 54.5 N/A
Sun 02AM 23AUG26 13957 14323 17138 53.1 N/A
Sun 05AM 23AUG26 13951 14257 14734 52.8 N/A
Sun 08AM 23AUG26 13868 14145 14576 65.0 N/A
Sun 11AM 23AUG26 13829 14070 14445 76.6 N/A
Sun 02PM 23AUG26 13986 14225 14597 76.7 N/A
Sun 05PM 23AUG26 14005 14223 14561 66.5 N/A
Sun 08PM 23AUG26 13854 14102 14487 58.6 N/A
Sun 11PM 23AUG26 12742 14051 14490 54.4 N/A
Mon 02AM 24AUG26 12559 13870 14341 51.3 N/A
Mon 05AM 24AUG26 12515 13803 14245 50.6 N/A
Mon 08AM 24AUG26 12454 12700 14197 63.6 N/A
Mon 11AM 24AUG26 12531 12768 14190 73.8 N/A
Mon 02PM 24AUG26 13811 14041 14397 76.5 N/A
Mon 05PM 24AUG26 13820 14046 14396 74.0 N/A
Mon 08PM 24AUG26 12438 12671 14174 59.3 N/A
Mon 11PM 24AUG26 12549 13846 14299 56.4 N/A
Tue 02AM 25AUG26 12443 12696 14156 55.3 N/A
Tue 05AM 25AUG26 12606 13898 14300 51.8 N/A
Tue 08AM 25AUG26 12525 13802 14213 64.8 N/A
Tue 11AM 25AUG26 12543 13810 14212 74.4 N/A
Tue 02PM 25AUG26 13904 14136 14498 78.2 N/A
Tue 05PM 25AUG26 13973 14214 14588 76.0 N/A
Tue 08PM 25AUG26 13994 14231 14600 59.8 N/A
Tue 11PM 25AUG26 13937 14171 14534 57.5 N/A
Wed 02AM 26AUG26 13973 14213 14586 55.9 N/A
Wed 05AM 26AUG26 13953 14192 14564 53.9 N/A
Wed 08AM 26AUG26 13977 14219 14595 66.8 N/A
Wed 11AM 26AUG26 13997 14232 14598 78.9 N/A
Wed 02PM 26AUG26 14293 14522 17118 81.8 N/A
Wed 05PM 26AUG26 14357 14583 17180 80.5 N/A
Wed 08PM 26AUG26 14334 14559 17153 63.4 N/A
Wed 11PM 26AUG26 14369 14605 17221 60.5 N/A
Thu 02AM 27AUG26 14322 14555 17160 59.6 N/A
Thu 05AM 27AUG26 14189 14434 14814 57.2 N/A
Thu 08AM 27AUG26 13990 14245 14642 69.6 N/A
Thu 11AM 27AUG26 13875 14109 14473 76.8 N/A
Thu 02PM 27AUG26 14077 14306 14660 79.6 N/A
Thu 05PM 27AUG26 14025 14264 14635 75.3 N/A
Thu 08PM 27AUG26 13798 14058 14462 58.3 N/A
Thu 11PM 27AUG26 13883 14162 14595 54.0 N/A
Fri 02AM 28AUG26 12648 13991 14490 51.7 N/A
Fri 05AM 28AUG26 12435 12751 14237 51.9 N/A
Fri 08AM 28AUG26 12349 12604 14069 64.7 N/A
Fri 11AM 28AUG26 12519 12756 14178 73.1 N/A
Fri 02PM 28AUG26 13879 14110 14469 77.6 N/A
Fri 05PM 28AUG26 14036 14263 14616 75.7 N/A
Fri 08PM 28AUG26 13829 14063 14428 58.6 N/A
Fri 11PM 28AUG26 12541 13857 14299 51.9 N/A
Sat 02AM 29AUG26 12344 12649 14141 50.0 N/A
Sat 05AM 29AUG26 12184 12468 13937 48.0 N/A
Sat 08AM 29AUG26 12200 12476 13929 62.9 N/A
Sat 11AM 29AUG26 12462 12698 14083 73.0 N/A
Sat 02PM 29AUG26 12769 14023 14378 76.4 N/A
Sat 05PM 29AUG26 13927 14152 14502 74.6 N/A
Sat 08PM 29AUG26 13908 14143 14508 57.7 N/A
Sat 11PM 29AUG26 12726 14014 14420 53.6 N/A
Sun 02AM 30AUG26 12603 13890 14305 51.6 N/A
Sun 05AM 30AUG26 12558 13838 14235 49.8 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