Surf Forecasts and Marine Weather - No Hype - Just the Facts!
El Nino Developing Exactly Like 1997! - Video HERE (7/26/26)
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: 00Z Tue 28JUL2026
Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs)
Mon 04PM 27JUL26 11.5 18.0 198 14.9 22.4 242
Mon 07PM 27JUL26 11.5 17.9 160 8.8 13.3 231
Mon 10PM 27JUL26 6.6 10.3 166 4.9 7.4 226
Tue 01AM 28JUL26 8.1 12.7 175 11.5 17.2 234
Tue 04AM 28JUL26 8.8 13.8 224 15.3 22.9 242
Tue 07AM 28JUL26 11.9 18.6 265 15.6 23.4 263
Tue 10AM 28JUL26 6.8 10.7 286 10.2 15.3 275
Tue 01PM 28JUL26 10.7 16.7 212 12.7 19.1 234
Tue 04PM 28JUL26 10.6 16.5 192 13.1 19.7 240
Tue 07PM 28JUL26 10.3 16.1 158 8.0 12.0 219
Tue 10PM 28JUL26 7.6 11.8 157 4.6 6.9 210
Wed 01AM 29JUL26 6.4 10.0 169 6.8 10.2 218
Wed 04AM 29JUL26 6.1 9.6 209 9.6 14.4 228
Wed 07AM 29JUL26 7.7 12.0 250 11.6 17.5 248
Wed 10AM 29JUL26 6.9 10.8 258 9.1 13.6 256
Wed 01PM 29JUL26 10.1 15.8 215 9.8 14.7 215
Wed 04PM 29JUL26 8.5 13.2 205 9.0 13.5 210
Wed 07PM 29JUL26 11.8 18.4 150 6.6 9.9 204
Wed 10PM 29JUL26 8.5 13.2 158 5.3 7.9 211
Thu 01AM 30JUL26 7.4 11.6 165 7.8 11.7 218
Thu 04AM 30JUL26 5.7 9.0 216 9.8 14.7 231
Thu 07AM 30JUL26 5.0 7.8 224 9.3 14.0 230
Thu 10AM 30JUL26 6.2 9.6 280 8.5 12.8 269
Thu 01PM 30JUL26 4.2 6.5 235 3.5 5.2 222
Thu 04PM 30JUL26 6.0 9.3 169 6.9 10.4 156
Thu 07PM 30JUL26 10.5 16.4 114 7.9 11.8 125
Thu 10PM 30JUL26 7.7 12.0 133 4.8 7.2 158
Fri 01AM 31JUL26 9.5 14.8 165 8.3 12.4 228
Fri 04AM 31JUL26 7.5 11.7 173 9.6 14.4 234
Fri 07AM 31JUL26 4.6 7.2 185 9.1 13.6 237
Fri 10AM 31JUL26 8.1 12.6 295 11.3 17.0 285
Fri 01PM 31JUL26 5.7 8.9 293 4.1 6.1 279
Fri 04PM 31JUL26 6.5 10.2 194 8.1 12.2 186
Fri 07PM 31JUL26 7.7 12.1 136 4.7 7.0 168
Fri 10PM 31JUL26 7.8 12.2 158 5.9 8.8 206
Sat 01AM 01AUG26 6.9 10.7 180 8.9 13.3 231
Sat 04AM 01AUG26 6.7 10.5 211 10.4 15.7 241
Sat 07AM 01AUG26 7.6 11.8 245 12.0 18.0 255
Sat 10AM 01AUG26 7.4 11.6 259 9.7 14.6 257
Sat 01PM 01AUG26 11.7 18.3 213 12.3 18.4 222
Sat 04PM 01AUG26 10.4 16.1 204 11.4 17.1 223
Sat 07PM 01AUG26 9.3 14.5 154 6.3 9.5 213
Sat 10PM 01AUG26 7.5 11.6 161 5.7 8.5 227
Sun 01AM 02AUG26 5.2 8.2 176 5.8 8.6 218
Sun 04AM 02AUG26 6.7 10.4 226 9.6 14.5 244
Sun 07AM 02AUG26 8.2 12.8 251 11.4 17.1 256
Sun 10AM 02AUG26 7.5 11.7 259 9.0 13.5 257
Sun 01PM 02AUG26 12.5 19.5 216 13.0 19.5 218
Sun 04PM 02AUG26 11.4 17.8 214 12.0 17.9 224
Sun 07PM 02AUG26 8.5 13.3 161 8.2 12.3 236
Sun 10PM 02AUG26 6.0 9.3 165 5.1 7.7 229
Mon 01AM 03AUG26 5.8 9.1 184 7.4 11.1 234
Mon 04AM 03AUG26 6.4 10.0 209 10.4 15.6 237
Mon 07AM 03AUG26 8.3 13.0 248 13.1 19.7 251
Mon 10AM 03AUG26 7.5 11.7 259 10.0 15.0 258
Mon 01PM 03AUG26 11.7 18.2 214 12.0 18.0 221
Mon 04PM 03AUG26 10.1 15.7 211 10.2 15.2 220
Mon 07PM 03AUG26 10.0 15.6 149 4.9 7.4 203
Mon 10PM 03AUG26 5.1 8.0 151 3.6 5.5 179
Tue 01AM 04AUG26 6.7 10.5 175 7.7 11.5 230
Tue 04AM 04AUG26 7.8 12.2 193 12.9 19.4 235
Tue 07AM 04AUG26 7.2 11.3 240 12.4 18.6 243
Tue 10AM 04AUG26 6.8 10.6 263 9.9 14.9 260
Tue 01PM 04AUG26 11.8 18.4 209 12.9 19.4 224
Tue 04PM 04AUG26 10.7 16.8 207 11.5 17.2 222
Tue 07PM 04AUG26 8.7 13.6 157 7.1 10.6 226
Tue 10PM 04AUG26 8.4 13.1 156 4.8 7.2 214
Wed 01AM 05AUG26 7.6 11.8 165 6.6 10.0 222
Wed 04AM 05AUG26 6.9 10.8 193 10.2 15.3 240
Wed 07AM 05AUG26 6.5 10.2 249 9.7 14.5 250
Wed 10AM 05AUG26 7.3 11.4 264 8.7 13.0 259
Wed 01PM 05AUG26 10.9 17.0 209 11.2 16.8 209
Wed 04PM 05AUG26 9.9 15.4 201 9.7 14.5 207
Wed 07PM 05AUG26 8.5 13.3 151 5.1 7.7 212
Wed 10PM 05AUG26 8.9 14.0 134 4.1 6.2 170
Thu 01AM 06AUG26 5.5 8.6 194 7.3 11.0 229
Thu 04AM 06AUG26 7.1 11.1 193 10.5 15.8 246
Thu 07AM 06AUG26 5.6 8.8 238 8.7 13.1 251
Thu 10AM 06AUG26 6.0 9.3 258 7.1 10.7 252
Thu 01PM 06AUG26 11.3 17.6 209 10.9 16.4 208
Thu 04PM 06AUG26 11.0 17.1 205 11.0 16.6 209

.
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