Surf Forecasts and Marine Weather - No Hype - Just the Facts!
Here We Go - Kelvin Wave #1 Erupts!! - Video Forecast HERE (2/8/26)
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
.

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: 06Z Fri 13FEB2026
Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs)
Thu 10PM 12FEB26 7.8 11.7 42 6.4 9.6 37
Fri 01AM 13FEB26 7.7 11.6 44 7.9 11.9 32
Fri 04AM 13FEB26 8.1 12.2 43 9.6 14.4 27
Fri 07AM 13FEB26 8.6 13.0 74 12.6 18.9 44
Fri 10AM 13FEB26 5.6 8.4 39 9.1 13.7 23
Fri 01PM 13FEB26 6.1 9.2 224 9.6 14.4 285
Fri 04PM 13FEB26 10.1 15.1 231 13.4 20.1 287
Fri 07PM 13FEB26 8.8 13.3 105 11.5 17.2 60
Fri 10PM 13FEB26 9.1 13.6 119 7.9 11.9 72
Sat 01AM 14FEB26 12.4 18.6 159 8.9 13.3 159
Sat 04AM 14FEB26 13.2 19.8 164 11.1 16.7 167
Sat 07AM 14FEB26 17.3 25.9 167 16.0 23.9 170
Sat 10AM 14FEB26 17.3 25.9 180 19.5 29.3 181
Sat 01PM 14FEB26 16.1 24.1 193 22.9 34.4 190
Sat 04PM 14FEB26 17.9 26.9 184 27.2 40.7 184
Sat 07PM 14FEB26 21.5 32.3 170 28.2 42.3 174
Sat 10PM 14FEB26 19.9 29.9 170 26.8 40.3 174
Sun 01AM 15FEB26 16.2 24.4 168 25.7 38.6 173
Sun 04AM 15FEB26 19.6 29.4 170 27.7 41.6 174
Sun 07AM 15FEB26 20.5 30.8 167 27.8 41.7 172
Sun 10AM 15FEB26 16.6 24.9 189 24.3 36.5 186
Sun 01PM 15FEB26 11.5 17.3 223 21.6 32.5 207
Sun 04PM 15FEB26 12.4 18.5 203 20.8 31.2 196
Sun 07PM 15FEB26 13.6 20.4 160 22.4 33.5 169
Sun 10PM 15FEB26 16.6 24.9 171 26.9 40.3 173
Mon 01AM 16FEB26 21.8 32.7 189 29.2 43.8 184
Mon 04AM 16FEB26 21.3 31.9 189 31.9 47.9 185
Mon 07AM 16FEB26 21.8 32.7 193 37.7 56.5 188
Mon 10AM 16FEB26 25.1 37.7 193 31.2 46.9 190
Mon 01PM 16FEB26 31.0 46.4 193 34.0 51.1 190
Mon 04PM 16FEB26 30.1 45.2 194 33.5 50.2 190
Mon 07PM 16FEB26 42.4 63.6 194 38.9 58.4 193
Mon 10PM 16FEB26 37.9 56.8 198 35.2 52.8 199
Tue 01AM 17FEB26 39.8 59.6 193 39.0 58.5 193
Tue 04AM 17FEB26 48.2 72.3 195 44.7 67.0 193
Tue 07AM 17FEB26 53.9 80.9 197 46.1 69.2 199
Tue 10AM 17FEB26 49.2 73.8 192 47.7 71.5 193
Tue 01PM 17FEB26 43.7 65.5 194 41.6 62.3 195
Tue 04PM 17FEB26 41.0 61.5 192 37.3 55.9 193
Tue 07PM 17FEB26 41.4 62.1 192 35.3 53.0 194
Tue 10PM 17FEB26 35.4 53.1 192 30.4 45.5 193
Wed 01AM 18FEB26 34.6 51.9 192 30.7 46.1 191
Wed 04AM 18FEB26 29.4 44.1 187 23.6 35.4 186
Wed 07AM 18FEB26 22.5 33.8 171 28.2 42.3 175
Wed 10AM 18FEB26 24.9 37.3 190 24.5 36.8 189
Wed 01PM 18FEB26 18.4 27.7 198 14.4 21.6 201
Wed 04PM 18FEB26 11.6 17.4 189 8.7 13.0 187
Wed 07PM 18FEB26 10.5 15.8 223 9.7 14.6 276
Wed 10PM 18FEB26 20.6 30.9 129 20.5 30.7 73
Thu 01AM 19FEB26 25.6 38.4 130 26.4 39.6 73
Thu 04AM 19FEB26 25.1 37.7 128 27.3 41.0 72
Thu 07AM 19FEB26 22.5 33.7 128 22.0 32.9 72
Thu 10AM 19FEB26 18.9 28.4 135 15.5 23.3 75
Thu 01PM 19FEB26 20.2 30.4 229 16.0 24.0 283
Thu 04PM 19FEB26 20.9 31.4 228 15.9 23.9 284
Thu 07PM 19FEB26 21.0 31.5 131 17.4 26.0 74
Thu 10PM 19FEB26 19.5 29.3 129 16.6 24.9 73
Fri 01AM 20FEB26 24.6 36.8 131 19.4 29.1 75
Fri 04AM 20FEB26 28.8 43.2 132 23.5 35.3 74
Fri 07AM 20FEB26 29.2 43.7 131 23.9 35.8 74
Fri 10AM 20FEB26 29.0 43.5 226 22.0 33.0 283
Fri 01PM 20FEB26 21.3 32.0 229 15.9 23.8 281
Fri 04PM 20FEB26 20.5 30.8 231 19.8 29.8 286
Fri 07PM 20FEB26 6.2 9.3 44 8.5 12.7 31
Fri 10PM 20FEB26 9.5 14.3 63 13.7 20.6 39
Sat 01AM 21FEB26 11.2 16.9 62 16.9 25.4 38
Sat 04AM 21FEB26 10.3 15.5 55 14.4 21.5 34
Sat 07AM 21FEB26 8.5 12.7 59 11.0 16.5 38
Sat 10AM 21FEB26 7.0 10.5 26 7.3 11.0 25
Sat 01PM 21FEB26 2.9 4.3 43 2.6 3.9 59
Sat 04PM 21FEB26 2.2 3.3 92 2.3 3.5 101
Sat 07PM 21FEB26 5.8 8.7 96 4.6 7.0 111
Sat 10PM 21FEB26 5.5 8.3 102 4.6 6.8 118
Sun 01AM 22FEB26 5.2 7.8 106 5.0 7.5 128
Sun 04AM 22FEB26 5.6 8.5 119 5.4 8.2 139
Sun 07AM 22FEB26 5.0 7.4 122 4.6 6.8 141
Sun 10AM 22FEB26 4.6 6.9 197 4.4 6.5 190
Sun 01PM 22FEB26 7.2 10.8 184 6.2 9.3 183
Sun 04PM 22FEB26 7.8 11.8 174 6.6 9.8 171
Sun 07PM 22FEB26 9.5 14.2 156 7.4 11.1 160
Sun 10PM 22FEB26 12.6 18.9 162 10.9 16.3 167

.
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