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: 18Z Fri 12DEC2025 Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs) Fri 11AM 12DEC25 22.0 33.0 133 16.1 24.2 71 Fri 02PM 12DEC25 20.4 30.5 229 16.5 24.8 290 Fri 05PM 12DEC25 17.4 26.1 132 16.6 24.9 69 Fri 08PM 12DEC25 17.1 25.6 132 15.6 23.5 71 Fri 11PM 12DEC25 19.8 29.7 133 18.5 27.8 72 Sat 02AM 13DEC25 19.3 29.0 133 20.3 30.4 72 Sat 05AM 13DEC25 20.2 30.3 131 22.7 34.0 70 Sat 08AM 13DEC25 17.3 26.0 131 19.9 29.8 70 Sat 11AM 13DEC25 11.9 17.9 133 14.9 22.3 69 Sat 02PM 13DEC25 10.6 15.9 227 12.7 19.1 290 Sat 05PM 13DEC25 9.0 13.4 128 10.1 15.1 68 Sat 08PM 13DEC25 6.7 10.0 133 7.1 10.6 73 Sat 11PM 13DEC25 4.2 6.2 138 3.6 5.4 83 Sun 02AM 14DEC25 4.6 6.9 178 3.4 5.1 166 Sun 05AM 14DEC25 6.4 9.6 180 6.0 8.9 175 Sun 08AM 14DEC25 7.4 11.1 178 7.9 11.8 171 Sun 11AM 14DEC25 9.1 13.7 186 10.2 15.3 181 Sun 02PM 14DEC25 12.6 18.8 178 12.7 19.1 179 Sun 05PM 14DEC25 14.0 21.0 178 12.8 19.2 178 Sun 08PM 14DEC25 13.1 19.6 178 11.1 16.6 173 Sun 11PM 14DEC25 11.5 17.3 173 9.0 13.6 164 Mon 02AM 15DEC25 9.9 14.8 168 6.4 9.6 155 Mon 05AM 15DEC25 9.1 13.6 156 5.3 8.0 129 Mon 08AM 15DEC25 9.5 14.2 146 6.4 9.6 98 Mon 11AM 15DEC25 5.9 8.9 226 4.6 6.9 285 Mon 02PM 15DEC25 6.7 10.0 218 6.1 9.2 280 Mon 05PM 15DEC25 11.2 16.7 225 8.8 13.2 286 Mon 08PM 15DEC25 12.3 18.5 134 10.5 15.7 74 Mon 11PM 15DEC25 12.5 18.7 141 9.8 14.7 85 Tue 02AM 16DEC25 17.1 25.6 138 13.6 20.5 77 Tue 05AM 16DEC25 19.6 29.4 134 16.1 24.1 73 Tue 08AM 16DEC25 20.3 30.4 135 15.1 22.6 76 Tue 11AM 16DEC25 21.6 32.3 132 19.5 29.3 71 Tue 02PM 16DEC25 19.2 28.8 229 11.8 17.7 291 Tue 05PM 16DEC25 24.7 37.0 166 14.7 22.0 148 Tue 08PM 16DEC25 30.6 45.9 147 17.5 26.2 102 Tue 11PM 16DEC25 30.8 46.2 142 18.5 27.8 91 Wed 02AM 17DEC25 30.6 45.9 172 18.8 28.2 159 Wed 05AM 17DEC25 32.3 48.4 178 22.3 33.5 173 Wed 08AM 17DEC25 34.1 51.1 180 21.1 31.6 177 Wed 11AM 17DEC25 43.6 65.5 143 25.2 37.8 95 Wed 02PM 17DEC25 35.5 53.3 194 24.3 36.5 216 Wed 05PM 17DEC25 37.3 56.0 194 22.0 33.0 226 Wed 08PM 17DEC25 40.0 60.0 221 25.5 38.2 273 Wed 11PM 17DEC25 34.6 51.9 134 19.6 29.4 74 Thu 02AM 18DEC25 34.4 51.5 136 19.3 28.9 82 Thu 05AM 18DEC25 34.4 51.5 135 21.7 32.5 75 Thu 08AM 18DEC25 26.5 39.7 135 17.1 25.7 77 Thu 11AM 18DEC25 23.6 35.4 182 14.8 22.2 182 Thu 02PM 18DEC25 29.8 44.7 179 19.1 28.6 177 Thu 05PM 18DEC25 31.7 47.5 177 19.5 29.3 174 Thu 08PM 18DEC25 28.8 43.2 178 19.7 29.6 172 Thu 11PM 18DEC25 32.3 48.5 176 22.4 33.7 171 Fri 02AM 19DEC25 34.6 51.8 179 24.9 37.3 174 Fri 05AM 19DEC25 39.1 58.6 175 29.0 43.5 169 Fri 08AM 19DEC25 41.5 62.3 175 29.5 44.2 167 Fri 11AM 19DEC25 38.0 57.0 165 21.7 32.5 141 Fri 02PM 19DEC25 41.5 62.2 172 26.2 39.2 160 Fri 05PM 19DEC25 37.6 56.4 144 20.7 31.0 102 Fri 08PM 19DEC25 38.2 57.3 186 21.0 31.5 187 Fri 11PM 19DEC25 33.4 50.1 174 23.4 35.1 188 Sat 02AM 20DEC25 29.9 44.8 204 17.8 26.6 241 Sat 05AM 20DEC25 29.6 44.4 226 16.5 24.8 284 Sat 08AM 20DEC25 28.5 42.8 231 15.9 23.9 289 Sat 11AM 20DEC25 29.2 43.8 174 16.0 23.9 165 Sat 02PM 20DEC25 28.5 42.8 182 18.3 27.5 182 Sat 05PM 20DEC25 26.2 39.3 178 18.3 27.5 175 Sat 08PM 20DEC25 22.8 34.2 180 16.4 24.6 177 Sat 11PM 20DEC25 23.2 34.8 176 17.1 25.6 171 Sun 02AM 21DEC25 27.9 41.8 182 21.1 31.7 177 Sun 05AM 21DEC25 30.1 45.1 183 21.3 32.0 182 Sun 08AM 21DEC25 39.1 58.6 185 31.9 47.8 182 Sun 11AM 21DEC25 41.4 62.1 179 33.0 49.5 182 Sun 02PM 21DEC25 40.0 60.1 178 31.2 46.8 180 Sun 05PM 21DEC25 37.4 56.1 183 34.4 51.6 187 Sun 08PM 21DEC25 36.1 54.1 186 34.6 51.8 184 Sun 11PM 21DEC25 25.7 38.6 191 26.5 39.7 189 Mon 02AM 22DEC25 29.8 44.6 232 23.1 34.7 288 Mon 05AM 22DEC25 25.8 38.7 205 15.1 22.7 247 Mon 08AM 22DEC25 23.3 35.0 197 16.1 24.2 245 Mon 11AM 22DEC25 22.4 33.6 207 15.3 22.9 256

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