Will the Jetstream Ever Heal? - Video Forecast HERE (12/28/25)

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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 31DEC2025 Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs) Wed 04AM 31DEC25 7.2 10.8 138 10.1 15.1 154 Wed 07AM 31DEC25 6.2 9.3 99 10.0 15.0 133 Wed 10AM 31DEC25 9.9 14.9 51 9.3 14.0 104 Wed 01PM 31DEC25 8.8 13.3 304 8.7 13.0 250 Wed 04PM 31DEC25 7.9 11.8 164 13.4 20.1 170 Wed 07PM 31DEC25 7.3 11.0 156 15.1 22.7 166 Wed 10PM 31DEC25 8.5 12.8 169 12.9 19.4 174 Thu 01AM 01JAN26 9.7 14.5 175 16.4 24.6 176 Thu 04AM 01JAN26 17.4 26.2 177 22.5 33.7 178 Thu 07AM 01JAN26 16.0 24.0 178 23.8 35.7 177 Thu 10AM 01JAN26 13.6 20.4 187 24.0 36.0 183 Thu 01PM 01JAN26 21.0 31.5 183 32.3 48.4 183 Thu 04PM 01JAN26 16.9 25.4 187 22.5 33.7 185 Thu 07PM 01JAN26 25.8 38.6 182 20.6 30.9 183 Thu 10PM 01JAN26 24.9 37.4 173 17.0 25.4 175 Fri 01AM 02JAN26 22.6 33.9 168 16.2 24.3 167 Fri 04AM 02JAN26 19.7 29.6 167 15.9 23.9 169 Fri 07AM 02JAN26 22.8 34.2 169 18.4 27.6 171 Fri 10AM 02JAN26 19.6 29.4 177 19.7 29.6 178 Fri 01PM 02JAN26 19.9 29.8 186 23.4 35.0 184 Fri 04PM 02JAN26 23.1 34.7 179 27.3 40.9 179 Fri 07PM 02JAN26 16.6 25.0 167 23.4 35.1 172 Fri 10PM 02JAN26 22.0 33.1 172 28.8 43.2 174 Sat 01AM 03JAN26 22.4 33.6 172 28.6 42.9 175 Sat 04AM 03JAN26 22.8 34.2 171 28.2 42.2 174 Sat 07AM 03JAN26 23.6 35.4 174 29.2 43.7 176 Sat 10AM 03JAN26 25.5 38.3 183 33.9 50.8 182 Sat 01PM 03JAN26 28.5 42.8 187 35.1 52.7 186 Sat 04PM 03JAN26 27.5 41.2 190 34.9 52.3 186 Sat 07PM 03JAN26 23.6 35.5 188 31.4 47.1 186 Sat 10PM 03JAN26 23.9 35.8 191 32.0 48.0 188 Sun 01AM 04JAN26 24.3 36.4 193 29.9 44.8 189 Sun 04AM 04JAN26 26.3 39.5 192 33.5 50.2 188 Sun 07AM 04JAN26 24.1 36.2 188 31.7 47.5 186 Sun 10AM 04JAN26 29.8 44.7 191 40.2 60.2 187 Sun 01PM 04JAN26 33.6 50.4 189 42.2 63.3 186 Sun 04PM 04JAN26 27.1 40.6 186 32.5 48.8 183 Sun 07PM 04JAN26 27.9 41.9 187 31.8 47.8 187 Sun 10PM 04JAN26 25.9 38.8 193 33.6 50.5 189 Mon 01AM 05JAN26 22.2 33.3 192 29.2 43.8 190 Mon 04AM 05JAN26 18.2 27.3 191 24.5 36.7 188 Mon 07AM 05JAN26 17.6 26.4 187 23.5 35.2 182 Mon 10AM 05JAN26 19.7 29.6 189 27.4 41.1 184 Mon 01PM 05JAN26 21.7 32.5 193 29.1 43.6 189 Mon 04PM 05JAN26 22.2 33.3 190 29.6 44.3 187 Mon 07PM 05JAN26 22.6 33.9 187 29.5 44.2 184 Mon 10PM 05JAN26 25.9 38.9 186 34.5 51.8 184 Tue 01AM 06JAN26 23.6 35.4 187 27.2 40.8 185 Tue 04AM 06JAN26 14.4 21.5 182 23.4 35.2 180 Tue 07AM 06JAN26 13.2 19.9 190 25.8 38.7 187 Tue 10AM 06JAN26 12.5 18.7 228 26.8 40.2 208 Tue 01PM 06JAN26 12.1 18.1 166 26.3 39.4 172 Tue 04PM 06JAN26 11.3 17.0 145 26.1 39.2 161 Tue 07PM 06JAN26 9.7 14.6 48 19.1 28.7 108 Tue 10PM 06JAN26 6.2 9.3 268 10.4 15.7 232 Wed 01AM 07JAN26 7.4 11.1 203 11.1 16.7 196 Wed 04AM 07JAN26 10.3 15.4 187 7.8 11.7 190 Wed 07AM 07JAN26 13.7 20.5 129 11.0 16.5 72 Wed 10AM 07JAN26 15.1 22.6 220 9.0 13.5 265 Wed 01PM 07JAN26 15.3 22.9 214 10.2 15.2 243 Wed 04PM 07JAN26 26.1 39.2 227 18.2 27.4 282 Wed 07PM 07JAN26 24.6 37.0 135 17.1 25.6 77 Wed 10PM 07JAN26 25.5 38.2 138 15.3 22.9 85 Thu 01AM 08JAN26 25.3 38.0 174 18.8 28.2 175 Thu 04AM 08JAN26 32.8 49.2 177 27.8 41.8 176 Thu 07AM 08JAN26 32.5 48.8 184 29.9 44.8 184 Thu 10AM 08JAN26 21.9 32.9 211 14.2 21.2 246 Thu 01PM 08JAN26 19.4 29.1 216 12.7 19.0 253 Thu 04PM 08JAN26 18.3 27.5 208 11.3 16.9 233 Thu 07PM 08JAN26 20.9 31.3 135 14.7 22.0 75 Thu 10PM 08JAN26 17.8 26.7 135 12.7 19.0 79 Fri 01AM 09JAN26 18.0 27.0 133 12.7 19.1 77 Fri 04AM 09JAN26 19.3 29.0 132 15.4 23.2 76 Fri 07AM 09JAN26 18.9 28.3 130 17.9 26.9 74 Fri 10AM 09JAN26 16.5 24.7 226 15.7 23.6 286 Fri 01PM 09JAN26 11.0 16.4 233 9.1 13.6 280 Fri 04PM 09JAN26 10.2 15.2 237 9.6 14.5 288 Fri 07PM 09JAN26 10.2 15.4 122 10.4 15.5 71 Fri 10PM 09JAN26 10.6 15.9 121 9.8 14.7 71 Sat 01AM 10JAN26 12.0 18.1 120 11.6 17.4 71 Sat 04AM 10JAN26 12.8 19.1 121 12.3 18.5 70

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