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: 06Z Mon 29DEC2025 Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs) Sun 10PM 28DEC25 15.7 23.6 42 10.3 15.5 72 Mon 01AM 29DEC25 14.0 21.0 44 9.4 14.1 70 Mon 04AM 29DEC25 13.1 19.6 36 9.1 13.6 45 Mon 07AM 29DEC25 18.5 27.8 24 13.6 20.3 26 Mon 10AM 29DEC25 21.4 32.1 22 15.0 22.5 30 Mon 01PM 29DEC25 19.8 29.7 32 12.8 19.3 57 Mon 04PM 29DEC25 19.0 28.6 34 12.0 18.0 58 Mon 07PM 29DEC25 17.6 26.4 31 11.4 17.1 43 Mon 10PM 29DEC25 16.9 25.3 47 11.6 17.4 90 Tue 01AM 30DEC25 16.0 24.0 50 11.5 17.3 95 Tue 04AM 30DEC25 8.6 12.9 60 6.4 9.5 96 Tue 07AM 30DEC25 10.9 16.4 59 9.0 13.5 100 Tue 10AM 30DEC25 3.1 4.6 96 4.4 6.7 133 Tue 01PM 30DEC25 3.3 5.0 157 4.5 6.7 161 Tue 04PM 30DEC25 5.1 7.7 84 5.0 7.5 116 Tue 07PM 30DEC25 8.0 12.0 60 5.9 8.9 98 Tue 10PM 30DEC25 7.5 11.3 81 8.2 12.4 120 Wed 01AM 31DEC25 7.8 11.7 88 10.3 15.5 126 Wed 04AM 31DEC25 5.9 8.9 110 8.0 12.1 138 Wed 07AM 31DEC25 6.3 9.4 49 4.4 6.6 83 Wed 10AM 31DEC25 7.7 11.5 58 9.0 13.5 106 Wed 01PM 31DEC25 8.1 12.1 98 16.5 24.7 134 Wed 04PM 31DEC25 11.1 16.7 157 15.9 23.8 167 Wed 07PM 31DEC25 8.8 13.2 157 14.7 22.0 165 Wed 10PM 31DEC25 13.2 19.8 177 17.4 26.0 177 Thu 01AM 01JAN26 13.2 19.8 182 18.8 28.2 180 Thu 04AM 01JAN26 16.1 24.2 179 21.4 32.1 178 Thu 07AM 01JAN26 10.1 15.1 177 14.5 21.8 178 Thu 10AM 01JAN26 10.0 15.1 197 12.6 18.9 191 Thu 01PM 01JAN26 14.3 21.5 196 16.9 25.3 191 Thu 04PM 01JAN26 15.2 22.8 192 15.9 23.8 190 Thu 07PM 01JAN26 23.9 35.9 181 20.1 30.1 182 Thu 10PM 01JAN26 18.7 28.0 178 19.1 28.6 179 Fri 01AM 02JAN26 22.1 33.1 179 19.4 29.0 179 Fri 04AM 02JAN26 23.4 35.1 177 21.6 32.5 177 Fri 07AM 02JAN26 20.7 31.0 175 23.4 35.1 176 Fri 10AM 02JAN26 19.9 29.9 182 25.2 37.9 182 Fri 01PM 02JAN26 19.6 29.3 188 28.1 42.1 186 Fri 04PM 02JAN26 20.9 31.4 183 29.8 44.7 182 Fri 07PM 02JAN26 17.3 25.9 186 28.6 43.0 182 Fri 10PM 02JAN26 23.8 35.8 199 38.1 57.1 191 Sat 01AM 03JAN26 38.3 57.4 192 44.0 66.0 188 Sat 04AM 03JAN26 34.6 51.9 189 35.7 53.5 188 Sat 07AM 03JAN26 23.5 35.3 193 31.4 47.0 189 Sat 10AM 03JAN26 21.5 32.2 189 26.9 40.3 187 Sat 01PM 03JAN26 26.6 39.9 184 25.1 37.6 184 Sat 04PM 03JAN26 22.5 33.7 181 23.3 35.0 183 Sat 07PM 03JAN26 20.4 30.6 178 23.9 35.9 178 Sat 10PM 03JAN26 20.4 30.5 173 26.4 39.6 175 Sun 01AM 04JAN26 21.5 32.3 179 27.4 41.0 179 Sun 04AM 04JAN26 23.2 34.9 177 27.7 41.5 178 Sun 07AM 04JAN26 23.0 34.5 175 26.4 39.7 176 Sun 10AM 04JAN26 21.6 32.4 185 24.6 36.9 182 Sun 01PM 04JAN26 17.1 25.7 189 17.5 26.2 188 Sun 04PM 04JAN26 10.0 15.0 191 11.3 17.0 189 Sun 07PM 04JAN26 19.0 28.5 171 15.7 23.6 172 Sun 10PM 04JAN26 23.8 35.7 170 18.0 27.0 170 Mon 01AM 05JAN26 17.3 26.0 168 12.4 18.7 167 Mon 04AM 05JAN26 14.3 21.5 167 14.5 21.7 171 Mon 07AM 05JAN26 18.2 27.3 169 15.5 23.2 172 Mon 10AM 05JAN26 17.0 25.5 175 12.3 18.4 173 Mon 01PM 05JAN26 14.4 21.6 187 9.2 13.8 190 Mon 04PM 05JAN26 14.7 22.0 168 9.8 14.6 162 Mon 07PM 05JAN26 13.8 20.7 146 8.3 12.5 122 Mon 10PM 05JAN26 12.9 19.4 157 8.6 12.9 154 Tue 01AM 06JAN26 12.2 18.2 150 7.5 11.2 136 Tue 04AM 06JAN26 14.5 21.8 131 9.9 14.8 81 Tue 07AM 06JAN26 16.2 24.3 133 10.9 16.3 85 Tue 10AM 06JAN26 16.9 25.3 133 13.2 19.9 77 Tue 01PM 06JAN26 12.3 18.4 132 9.0 13.5 84 Tue 04PM 06JAN26 10.6 15.9 127 8.8 13.3 80 Tue 07PM 06JAN26 8.9 13.4 121 6.9 10.3 83 Tue 10PM 06JAN26 8.7 13.1 144 6.7 10.1 146 Wed 01AM 07JAN26 11.0 16.5 154 9.7 14.5 159 Wed 04AM 07JAN26 10.2 15.2 152 9.6 14.4 158 Wed 07AM 07JAN26 8.9 13.3 144 11.0 16.5 158 Wed 10AM 07JAN26 11.8 17.6 168 12.7 19.1 171 Wed 01PM 07JAN26 12.2 18.4 172 12.3 18.5 173 Wed 04PM 07JAN26 17.0 25.5 166 20.0 30.0 170 Wed 07PM 07JAN26 18.1 27.1 168 22.1 33.1 172 Wed 10PM 07JAN26 17.9 26.9 170 25.2 37.8 173

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