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
.

Mammoth - Wind Forecast
Location: 37.64N 119.02W
Base Elevation: 7953 ft
Peak Elevation: 11053 ft

 

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

 

Data

Initialized: 12Z Thu 04DEC2025
Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs)
Thu 04AM 04DEC25 8.3 12.5 53 12.6 18.9 32
Thu 07AM 04DEC25 11.4 17.1 33 16.9 25.3 21
Thu 10AM 04DEC25 9.4 14.0 12 16.5 24.7 8
Thu 01PM 04DEC25 9.3 13.9 285 16.7 25.0 317
Thu 04PM 04DEC25 7.6 11.4 111 16.5 24.7 221
Thu 07PM 04DEC25 10.3 15.5 45 17.4 26.1 27
Thu 10PM 04DEC25 12.5 18.8 50 21.8 32.6 29
Fri 01AM 05DEC25 14.6 21.9 101 24.1 36.1 57
Fri 04AM 05DEC25 14.0 21.0 71 25.5 38.3 41
Fri 07AM 05DEC25 14.8 22.2 55 26.4 39.7 32
Fri 10AM 05DEC25 12.5 18.8 56 24.2 36.3 34
Fri 01PM 05DEC25 8.4 12.6 32 17.6 26.4 20
Fri 04PM 05DEC25 13.7 20.5 227 19.5 29.3 286
Fri 07PM 05DEC25 16.6 24.9 125 20.8 31.2 70
Fri 10PM 05DEC25 18.3 27.5 126 23.6 35.5 71
Sat 01AM 06DEC25 24.9 37.4 130 26.5 39.7 73
Sat 04AM 06DEC25 26.3 39.5 130 27.0 40.4 73
Sat 07AM 06DEC25 24.7 37.0 128 27.3 41.0 72
Sat 10AM 06DEC25 19.9 29.8 228 24.2 36.3 287
Sat 01PM 06DEC25 18.7 28.1 234 23.7 35.5 290
Sat 04PM 06DEC25 23.2 34.7 227 21.5 32.2 285
Sat 07PM 06DEC25 23.9 35.8 130 24.7 37.1 73
Sat 10PM 06DEC25 23.1 34.6 130 24.3 36.4 73
Sun 01AM 07DEC25 21.7 32.5 130 21.6 32.4 73
Sun 04AM 07DEC25 20.0 29.9 131 16.7 25.1 75
Sun 07AM 07DEC25 19.3 28.9 133 13.9 20.8 79
Sun 10AM 07DEC25 18.0 27.0 223 11.4 17.1 277
Sun 01PM 07DEC25 18.4 27.7 227 12.8 19.2 277
Sun 04PM 07DEC25 17.8 26.7 227 14.8 22.2 284
Sun 07PM 07DEC25 16.2 24.4 126 16.9 25.4 72
Sun 10PM 07DEC25 17.9 26.9 126 18.0 27.0 72
Mon 01AM 08DEC25 17.8 26.7 125 19.3 28.9 71
Mon 04AM 08DEC25 16.3 24.5 118 21.5 32.2 68
Mon 07AM 08DEC25 14.2 21.3 111 21.1 31.7 63
Mon 10AM 08DEC25 13.0 19.5 124 19.6 29.4 71
Mon 01PM 08DEC25 14.1 21.2 237 19.4 29.2 292
Mon 04PM 08DEC25 15.7 23.6 232 21.2 31.7 289
Mon 07PM 08DEC25 13.3 19.9 121 17.9 26.8 69
Mon 10PM 08DEC25 17.3 25.9 127 19.7 29.5 72
Tue 01AM 09DEC25 21.0 31.4 130 22.1 33.1 74
Tue 04AM 09DEC25 20.1 30.2 128 21.9 32.8 72
Tue 07AM 09DEC25 17.9 26.9 127 21.0 31.5 71
Tue 10AM 09DEC25 16.9 25.4 136 19.9 29.8 76
Tue 01PM 09DEC25 21.8 32.7 230 23.2 34.9 287
Tue 04PM 09DEC25 26.2 39.3 225 28.8 43.3 285
Tue 07PM 09DEC25 20.7 31.0 124 25.4 38.2 70
Tue 10PM 09DEC25 18.7 28.0 123 23.3 35.0 70
Wed 01AM 10DEC25 18.0 27.0 125 21.4 32.1 71
Wed 04AM 10DEC25 16.9 25.3 123 20.3 30.5 70
Wed 07AM 10DEC25 14.1 21.1 123 16.9 25.3 70
Wed 10AM 10DEC25 14.1 21.2 230 14.8 22.1 287
Wed 01PM 10DEC25 18.1 27.1 233 19.1 28.6 288
Wed 04PM 10DEC25 21.9 32.8 226 23.3 35.0 286
Wed 07PM 10DEC25 22.8 34.2 128 24.5 36.7 72
Wed 10PM 10DEC25 19.6 29.5 127 21.2 31.8 72
Thu 01AM 11DEC25 14.9 22.3 120 17.5 26.3 68
Thu 04AM 11DEC25 13.7 20.5 116 17.2 25.8 66
Thu 07AM 11DEC25 15.2 22.8 117 19.5 29.2 67
Thu 10AM 11DEC25 9.8 14.8 121 14.7 22.1 70
Thu 01PM 11DEC25 8.4 12.5 148 13.0 19.6 82
Thu 04PM 11DEC25 7.4 11.0 234 10.6 15.9 289
Thu 07PM 11DEC25 7.9 11.8 117 8.2 12.3 73
Thu 10PM 11DEC25 9.8 14.7 133 7.0 10.5 90
Fri 01AM 12DEC25 11.8 17.7 134 8.1 12.1 88
Fri 04AM 12DEC25 12.1 18.2 136 8.0 12.1 88
Fri 07AM 12DEC25 10.6 15.9 151 6.5 9.8 131
Fri 10AM 12DEC25 10.6 15.9 185 8.4 12.6 184
Fri 01PM 12DEC25 13.5 20.2 196 12.1 18.1 195
Fri 04PM 12DEC25 15.7 23.5 190 13.7 20.6 191
Fri 07PM 12DEC25 19.3 29.0 174 15.5 23.3 175
Fri 10PM 12DEC25 21.7 32.6 176 17.1 25.6 176
Sat 01AM 13DEC25 24.5 36.8 175 18.3 27.4 176
Sat 04AM 13DEC25 25.6 38.4 175 17.2 25.9 175
Sat 07AM 13DEC25 29.6 44.5 176 19.0 28.5 175
Sat 10AM 13DEC25 30.7 46.0 195 18.4 27.6 208
Sat 01PM 13DEC25 30.0 45.0 223 18.8 28.3 269
Sat 04PM 13DEC25 25.4 38.1 217 15.1 22.7 261
Sat 07PM 13DEC25 24.1 36.2 154 14.0 21.0 127
Sat 10PM 13DEC25 23.8 35.7 170 15.3 23.0 167
Sun 01AM 14DEC25 25.4 38.2 174 18.1 27.2 174
Sun 04AM 14DEC25 26.3 39.5 176 20.3 30.4 177

.
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