Surf Forecasts and Marine Weather - No Hype - Just the Facts!
Is This the Last Inactive MJO of Out Current La Nina?. - Video Forecast HERE (12/21/25)
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 Wed 24DEC2025
Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs)
Wed 04AM 24DEC25 28.7 43.1 184 44.2 66.3 182
Wed 07AM 24DEC25 25.9 38.8 182 38.3 57.5 181
Wed 10AM 24DEC25 26.1 39.1 194 35.3 52.9 190
Wed 01PM 24DEC25 24.6 36.9 191 30.1 45.2 188
Wed 04PM 24DEC25 23.0 34.5 190 30.1 45.2 188
Wed 07PM 24DEC25 22.6 33.9 198 31.9 47.9 191
Wed 10PM 24DEC25 26.1 39.1 194 37.3 55.9 190
Thu 01AM 25DEC25 29.8 44.7 194 40.0 60.0 189
Thu 04AM 25DEC25 26.6 39.9 195 37.5 56.2 190
Thu 07AM 25DEC25 23.2 34.8 195 37.8 56.7 189
Thu 10AM 25DEC25 39.0 58.5 187 39.5 59.3 187
Thu 01PM 25DEC25 40.5 60.7 188 46.2 69.4 185
Thu 04PM 25DEC25 34.8 52.2 194 40.5 60.7 190
Thu 07PM 25DEC25 34.1 51.2 196 41.3 61.9 192
Thu 10PM 25DEC25 35.7 53.6 195 44.4 66.6 191
Fri 01AM 26DEC25 41.6 62.4 194 48.4 72.6 190
Fri 04AM 26DEC25 39.1 58.6 193 44.5 66.8 190
Fri 07AM 26DEC25 35.6 53.4 192 38.4 57.6 188
Fri 10AM 26DEC25 28.4 42.6 191 35.3 52.9 190
Fri 01PM 26DEC25 23.9 35.8 195 30.1 45.1 190
Fri 04PM 26DEC25 21.1 31.6 192 25.3 38.0 188
Fri 07PM 26DEC25 15.2 22.9 189 20.1 30.1 185
Fri 10PM 26DEC25 13.8 20.7 168 17.9 26.8 172
Sat 01AM 27DEC25 10.3 15.5 161 9.3 13.9 164
Sat 04AM 27DEC25 9.0 13.5 118 8.3 12.5 70
Sat 07AM 27DEC25 5.6 8.4 83 6.6 10.0 51
Sat 10AM 27DEC25 5.6 8.4 16 6.3 9.5 15
Sat 01PM 27DEC25 8.8 13.2 351 9.5 14.3 354
Sat 04PM 27DEC25 8.4 12.7 12 11.5 17.3 9
Sat 07PM 27DEC25 8.3 12.5 60 11.5 17.3 37
Sat 10PM 27DEC25 12.2 18.3 29 13.4 20.1 20
Sun 01AM 28DEC25 18.7 28.1 18 19.3 28.9 14
Sun 04AM 28DEC25 11.9 17.9 38 16.4 24.6 23
Sun 07AM 28DEC25 12.8 19.2 31 15.7 23.6 20
Sun 10AM 28DEC25 16.0 24.0 18 17.2 25.9 14
Sun 01PM 28DEC25 13.8 20.7 18 14.2 21.4 15
Sun 04PM 28DEC25 13.6 20.4 19 13.8 20.6 15
Sun 07PM 28DEC25 17.1 25.6 23 16.3 24.5 18
Sun 10PM 28DEC25 21.1 31.7 18 16.0 24.0 18
Mon 01AM 29DEC25 18.4 27.6 24 13.1 19.7 25
Mon 04AM 29DEC25 19.0 28.5 23 13.7 20.5 24
Mon 07AM 29DEC25 16.4 24.6 31 11.1 16.7 40
Mon 10AM 29DEC25 16.0 24.1 31 10.9 16.3 43
Mon 01PM 29DEC25 12.7 19.1 44 8.8 13.2 75
Mon 04PM 29DEC25 12.5 18.8 50 9.1 13.7 90
Mon 07PM 29DEC25 12.6 18.9 56 9.7 14.6 96
Mon 10PM 29DEC25 9.8 14.6 64 7.8 11.8 98
Tue 01AM 30DEC25 6.7 10.1 82 5.5 8.2 108
Tue 04AM 30DEC25 7.0 10.6 68 5.1 7.7 77
Tue 07AM 30DEC25 5.9 8.9 82 4.6 6.9 102
Tue 10AM 30DEC25 4.7 7.0 98 4.6 6.9 124
Tue 01PM 30DEC25 4.2 6.3 93 3.3 4.9 105
Tue 04PM 30DEC25 6.2 9.4 46 4.0 6.1 57
Tue 07PM 30DEC25 6.3 9.5 66 4.6 6.8 100
Tue 10PM 30DEC25 7.3 10.9 79 7.7 11.6 120
Wed 01AM 31DEC25 5.7 8.5 114 7.1 10.7 140
Wed 04AM 31DEC25 7.5 11.2 129 10.0 15.0 149
Wed 07AM 31DEC25 7.1 10.6 137 9.3 13.9 154
Wed 10AM 31DEC25 9.0 13.5 150 12.5 18.8 160
Wed 01PM 31DEC25 8.9 13.3 142 15.1 22.6 157
Wed 04PM 31DEC25 15.2 22.8 164 20.9 31.3 170
Wed 07PM 31DEC25 13.6 20.4 165 18.0 27.0 170
Wed 10PM 31DEC25 11.0 16.6 169 15.3 23.0 172
Thu 01AM 01JAN26 12.6 18.9 192 18.0 27.0 186
Thu 04AM 01JAN26 12.9 19.4 180 16.0 24.0 178
Thu 07AM 01JAN26 15.9 23.9 174 19.0 28.5 178
Thu 10AM 01JAN26 19.2 28.8 185 22.8 34.2 182
Thu 01PM 01JAN26 19.9 29.8 188 23.4 35.1 185
Thu 04PM 01JAN26 22.5 33.8 191 25.0 37.6 188
Thu 07PM 01JAN26 19.0 28.4 183 20.3 30.5 181
Thu 10PM 01JAN26 19.1 28.7 178 17.8 26.7 179
Fri 01AM 02JAN26 20.1 30.1 179 16.6 24.9 179
Fri 04AM 02JAN26 19.4 29.1 178 18.2 27.3 180
Fri 07AM 02JAN26 20.1 30.1 179 16.9 25.4 177
Fri 10AM 02JAN26 16.8 25.2 181 15.5 23.2 182
Fri 01PM 02JAN26 20.7 31.1 179 15.7 23.5 177
Fri 04PM 02JAN26 21.7 32.5 180 15.1 22.7 180
Fri 07PM 02JAN26 21.4 32.1 177 15.1 22.6 176
Fri 10PM 02JAN26 22.5 33.7 179 18.1 27.1 178
Sat 01AM 03JAN26 23.3 35.0 176 19.1 28.7 177
Sat 04AM 03JAN26 22.2 33.3 170 18.8 28.2 172

.
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