Active MJO Pushes East - What Effect Will Coming Inactive Phase Have? - Video Forecast HERE (12/7/25)

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Alta - Wind Forecast Location: 40.58N 111.60W Base Elevation: 8530 ft Peak Elevation: 10550 ft   240 hour GFS Model (0.25 deg) - 3 hr incrememts   Data Initialized: 12Z Wed 10DEC2025 Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs) Wed 05AM 10DEC25 27.5 41.3 131 29.2 43.8 70 Wed 08AM 10DEC25 28.4 42.5 132 30.1 45.2 69 Wed 11AM 10DEC25 27.8 41.7 133 27.5 41.2 70 Wed 02PM 10DEC25 25.0 37.5 128 25.9 38.8 66 Wed 05PM 10DEC25 25.6 38.3 129 27.2 40.8 68 Wed 08PM 10DEC25 24.3 36.4 131 24.7 37.1 70 Wed 11PM 10DEC25 22.3 33.5 133 21.0 31.5 72 Thu 02AM 11DEC25 24.4 36.5 135 18.1 27.2 76 Thu 05AM 11DEC25 27.5 41.2 134 19.0 28.5 76 Thu 08AM 11DEC25 27.0 40.4 130 20.2 30.3 71 Thu 11AM 11DEC25 25.6 38.3 130 22.4 33.6 68 Thu 02PM 11DEC25 24.6 36.9 229 23.9 35.8 292 Thu 05PM 11DEC25 24.7 37.1 129 25.6 38.4 68 Thu 08PM 11DEC25 21.1 31.7 129 23.6 35.3 68 Thu 11PM 11DEC25 18.0 27.0 131 20.2 30.4 70 Fri 02AM 12DEC25 18.9 28.3 130 18.2 27.3 71 Fri 05AM 12DEC25 20.4 30.6 132 18.5 27.7 72 Fri 08AM 12DEC25 21.0 31.5 132 17.3 26.0 73 Fri 11AM 12DEC25 20.6 30.9 132 16.2 24.2 70 Fri 02PM 12DEC25 19.3 28.9 230 15.6 23.3 292 Fri 05PM 12DEC25 18.2 27.3 129 14.9 22.3 67 Fri 08PM 12DEC25 18.1 27.2 130 16.6 25.0 69 Fri 11PM 12DEC25 18.6 27.9 133 19.2 28.8 72 Sat 02AM 13DEC25 19.1 28.7 133 19.4 29.1 72 Sat 05AM 13DEC25 17.4 26.1 131 19.0 28.5 70 Sat 08AM 13DEC25 17.6 26.3 131 19.1 28.6 70 Sat 11AM 13DEC25 14.1 21.2 131 15.8 23.7 69 Sat 02PM 13DEC25 11.7 17.5 229 12.8 19.2 291 Sat 05PM 13DEC25 10.1 15.1 131 10.9 16.3 70 Sat 08PM 13DEC25 6.0 9.0 134 7.3 11.0 71 Sat 11PM 13DEC25 3.9 5.9 143 3.1 4.7 99 Sun 02AM 14DEC25 5.8 8.7 172 4.5 6.7 161 Sun 05AM 14DEC25 7.6 11.3 178 6.8 10.2 173 Sun 08AM 14DEC25 8.8 13.1 179 9.0 13.5 174 Sun 11AM 14DEC25 11.3 16.9 183 12.1 18.1 179 Sun 02PM 14DEC25 13.8 20.7 179 14.3 21.5 179 Sun 05PM 14DEC25 14.2 21.3 180 13.4 20.1 178 Sun 08PM 14DEC25 11.1 16.7 178 10.0 15.0 173 Sun 11PM 14DEC25 11.8 17.7 178 10.1 15.2 173 Mon 02AM 15DEC25 9.7 14.5 173 6.7 10.0 161 Mon 05AM 15DEC25 10.2 15.3 136 8.4 12.7 77 Mon 08AM 15DEC25 8.8 13.2 128 8.7 13.1 68 Mon 11AM 15DEC25 10.3 15.5 135 11.2 16.8 70 Mon 02PM 15DEC25 11.3 17.0 130 11.8 17.6 68 Mon 05PM 15DEC25 15.8 23.7 129 15.2 22.8 68 Mon 08PM 15DEC25 16.9 25.4 133 15.1 22.6 71 Mon 11PM 15DEC25 14.5 21.7 134 13.5 20.2 72 Tue 02AM 16DEC25 17.3 26.0 134 18.7 28.1 73 Tue 05AM 16DEC25 19.9 29.9 133 19.7 29.5 71 Tue 08AM 16DEC25 25.6 38.4 134 24.1 36.2 72 Tue 11AM 16DEC25 28.2 42.3 132 28.0 42.0 70 Tue 02PM 16DEC25 24.2 36.3 131 20.7 31.1 68 Tue 05PM 16DEC25 24.8 37.1 131 19.6 29.4 68 Tue 08PM 16DEC25 18.7 28.0 141 11.5 17.2 90 Tue 11PM 16DEC25 19.5 29.3 175 13.6 20.4 167 Wed 02AM 17DEC25 22.1 33.1 178 16.1 24.1 169 Wed 05AM 17DEC25 21.8 32.8 179 16.9 25.3 173 Wed 08AM 17DEC25 27.8 41.7 151 17.5 26.2 111 Wed 11AM 17DEC25 34.4 51.6 220 19.6 29.5 268 Wed 02PM 17DEC25 45.1 67.6 232 31.1 46.6 290 Wed 05PM 17DEC25 30.0 45.1 235 21.4 32.1 290 Wed 08PM 17DEC25 35.4 53.0 220 24.1 36.2 281 Wed 11PM 17DEC25 33.9 50.8 226 27.3 40.9 286 Thu 02AM 18DEC25 33.7 50.6 226 25.4 38.1 288 Thu 05AM 18DEC25 33.9 50.8 229 24.4 36.6 289 Thu 08AM 18DEC25 37.7 56.6 131 28.2 42.3 69 Thu 11AM 18DEC25 36.5 54.7 131 28.2 42.3 70 Thu 02PM 18DEC25 33.3 50.0 128 26.6 39.9 67 Thu 05PM 18DEC25 28.3 42.5 133 19.8 29.6 73 Thu 08PM 18DEC25 29.4 44.0 137 20.1 30.1 78 Thu 11PM 18DEC25 30.8 46.2 137 21.8 32.8 81 Fri 02AM 19DEC25 30.3 45.4 140 20.1 30.1 87 Fri 05AM 19DEC25 33.1 49.6 139 20.5 30.8 88 Fri 08AM 19DEC25 34.0 51.0 142 21.5 32.2 93 Fri 11AM 19DEC25 30.3 45.5 157 17.7 26.5 126 Fri 02PM 19DEC25 31.1 46.6 171 20.0 29.9 161 Fri 05PM 19DEC25 29.6 44.4 174 22.2 33.3 165 Fri 08PM 19DEC25 28.2 42.3 177 23.2 34.8 169 Fri 11PM 19DEC25 30.2 45.4 175 25.8 38.7 163 Sat 02AM 20DEC25 30.5 45.8 175 24.1 36.1 168 Sat 05AM 20DEC25 26.9 40.4 173 20.1 30.2 165

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