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 Mon 27JUL2026
Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs)
Sun 04PM 26JUL26 14.2 22.1 222 18.3 27.5 240
Sun 07PM 26JUL26 11.0 17.2 169 12.8 19.2 247
Sun 10PM 26JUL26 9.9 15.4 173 13.3 20.0 253
Mon 01AM 27JUL26 8.6 13.3 186 12.5 18.8 248
Mon 04AM 27JUL26 8.5 13.3 227 13.5 20.2 252
Mon 07AM 27JUL26 9.4 14.7 253 12.8 19.2 252
Mon 10AM 27JUL26 10.0 15.6 253 11.7 17.5 252
Mon 01PM 27JUL26 13.0 20.3 221 14.6 21.8 232
Mon 04PM 27JUL26 11.3 17.6 206 15.0 22.5 243
Mon 07PM 27JUL26 10.2 16.0 164 10.3 15.5 235
Mon 10PM 27JUL26 8.2 12.8 163 6.1 9.2 232
Tue 01AM 28JUL26 6.8 10.7 174 8.4 12.6 227
Tue 04AM 28JUL26 7.6 11.8 199 12.0 18.0 245
Tue 07AM 28JUL26 8.4 13.0 238 13.7 20.6 251
Tue 10AM 28JUL26 6.0 9.4 282 9.5 14.2 272
Tue 01PM 28JUL26 10.9 17.0 211 12.2 18.2 234
Tue 04PM 28JUL26 10.3 16.1 197 13.5 20.2 243
Tue 07PM 28JUL26 10.2 15.9 161 9.0 13.5 222
Tue 10PM 28JUL26 7.8 12.2 157 4.8 7.2 213
Wed 01AM 29JUL26 5.6 8.7 173 6.7 10.1 218
Wed 04AM 29JUL26 7.1 11.1 215 11.3 16.9 233
Wed 07AM 29JUL26 6.9 10.8 224 12.5 18.8 242
Wed 10AM 29JUL26 6.7 10.4 263 10.1 15.2 261
Wed 01PM 29JUL26 9.0 14.0 212 9.0 13.4 228
Wed 04PM 29JUL26 8.8 13.7 195 9.3 14.0 209
Wed 07PM 29JUL26 10.3 16.0 125 5.5 8.3 148
Wed 10PM 29JUL26 8.6 13.4 146 4.5 6.7 189
Thu 01AM 30JUL26 7.8 12.2 165 7.3 11.0 222
Thu 04AM 30JUL26 8.5 13.2 172 10.9 16.4 230
Thu 07AM 30JUL26 5.3 8.3 182 9.1 13.7 230
Thu 10AM 30JUL26 5.4 8.4 303 8.3 12.4 275
Thu 01PM 30JUL26 5.5 8.5 231 5.3 8.0 230
Thu 04PM 30JUL26 9.3 14.5 182 10.2 15.3 171
Thu 07PM 30JUL26 9.8 15.3 119 6.9 10.4 131
Thu 10PM 30JUL26 7.3 11.4 133 4.6 6.9 157
Fri 01AM 31JUL26 7.9 12.3 167 8.0 12.0 226
Fri 04AM 31JUL26 8.0 12.4 174 10.4 15.6 232
Fri 07AM 31JUL26 5.6 8.7 224 11.1 16.7 237
Fri 10AM 31JUL26 8.4 13.2 291 11.4 17.1 284
Fri 01PM 31JUL26 5.3 8.3 279 4.4 6.6 268
Fri 04PM 31JUL26 8.3 13.0 186 9.1 13.7 174
Fri 07PM 31JUL26 6.9 10.8 127 5.0 7.4 145
Fri 10PM 31JUL26 7.9 12.3 156 4.9 7.4 207
Sat 01AM 01AUG26 8.9 14.0 162 6.8 10.2 227
Sat 04AM 01AUG26 7.5 11.7 169 7.5 11.3 230
Sat 07AM 01AUG26 4.0 6.3 218 6.8 10.3 235
Sat 10AM 01AUG26 4.8 7.4 280 6.4 9.7 269
Sat 01PM 01AUG26 8.9 13.9 219 8.0 12.1 221
Sat 04PM 01AUG26 9.5 14.8 199 9.5 14.3 212
Sat 07PM 01AUG26 8.9 13.9 134 4.2 6.3 168
Sat 10PM 01AUG26 7.4 11.6 126 4.2 6.3 142
Sun 01AM 02AUG26 7.1 11.1 171 7.9 11.9 221
Sun 04AM 02AUG26 7.0 10.9 192 10.2 15.3 240
Sun 07AM 02AUG26 6.5 10.2 239 10.9 16.4 252
Sun 10AM 02AUG26 7.3 11.3 272 9.9 14.8 267
Sun 01PM 02AUG26 13.7 21.3 217 14.8 22.1 226
Sun 04PM 02AUG26 12.6 19.6 221 13.5 20.2 227
Sun 07PM 02AUG26 8.6 13.5 180 13.5 20.3 249
Sun 10PM 02AUG26 8.7 13.5 174 10.4 15.5 248
Mon 01AM 03AUG26 8.0 12.6 206 13.1 19.6 252
Mon 04AM 03AUG26 11.0 17.2 245 16.0 24.1 256
Mon 07AM 03AUG26 12.5 19.4 257 14.7 22.1 259
Mon 10AM 03AUG26 9.6 15.0 247 10.1 15.1 250
Mon 01PM 03AUG26 11.7 18.3 220 11.9 17.9 216
Mon 04PM 03AUG26 11.7 18.2 212 11.3 17.0 216
Mon 07PM 03AUG26 7.4 11.6 172 9.4 14.1 242
Mon 10PM 03AUG26 5.7 8.8 168 5.1 7.7 232
Tue 01AM 04AUG26 5.1 8.0 170 4.7 7.1 232
Tue 04AM 04AUG26 5.2 8.1 186 6.8 10.2 235
Tue 07AM 04AUG26 6.1 9.6 264 9.9 14.8 241
Tue 10AM 04AUG26 6.3 9.9 293 7.2 10.8 290
Tue 01PM 04AUG26 4.4 6.9 298 2.3 3.4 305
Tue 04PM 04AUG26 11.7 18.3 195 10.3 15.5 185
Tue 07PM 04AUG26 10.4 16.2 113 12.8 19.2 122
Tue 10PM 04AUG26 7.4 11.6 117 7.7 11.5 122
Wed 01AM 05AUG26 5.9 9.3 139 3.2 4.8 167
Wed 04AM 05AUG26 7.9 12.4 172 8.5 12.8 234
Wed 07AM 05AUG26 4.8 7.5 218 9.8 14.7 239
Wed 10AM 05AUG26 5.9 9.2 303 7.9 11.8 292
Wed 01PM 05AUG26 8.3 12.9 215 8.0 12.0 212
Wed 04PM 05AUG26 13.3 20.7 214 13.8 20.7 217

.
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