Is Atmospheric Momentum The Key? - Video Forecast HERE (9/7/25)

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Grouse - Wind Forecast Location: 49.38N 123.07W Base Elevation: 2890 ft Peak Elevation: 4101 ft   240 hour GFS Model (0.25 deg) - 3 hr incrememts   Data Initialized: 18Z Sat 13SEP2025 Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs) Sat 11AM 13SEP25 8.2 12.3 227 14.7 22.0 184 Sat 02PM 13SEP25 10.7 16.1 222 16.5 24.8 182 Sat 05PM 13SEP25 12.7 19.1 208 19.4 29.1 172 Sat 08PM 13SEP25 9.1 13.7 201 17.7 26.5 176 Sat 11PM 13SEP25 5.8 8.7 250 13.9 20.9 200 Sun 02AM 14SEP25 9.4 14.1 189 17.2 25.8 181 Sun 05AM 14SEP25 11.7 17.6 173 11.8 17.7 138 Sun 08AM 14SEP25 7.5 11.3 212 9.4 14.2 165 Sun 11AM 14SEP25 8.0 12.0 191 6.4 9.6 143 Sun 02PM 14SEP25 10.6 15.9 180 6.1 9.2 126 Sun 05PM 14SEP25 10.5 15.8 200 7.2 10.8 68 Sun 08PM 14SEP25 9.1 13.6 213 8.8 13.2 70 Sun 11PM 14SEP25 9.3 13.9 199 7.6 11.4 67 Mon 02AM 15SEP25 10.4 15.6 206 10.5 15.7 77 Mon 05AM 15SEP25 12.6 18.8 151 13.1 19.6 75 Mon 08AM 15SEP25 9.9 14.8 142 11.2 16.9 60 Mon 11AM 15SEP25 4.5 6.8 136 6.3 9.4 291 Mon 02PM 15SEP25 3.7 5.6 126 3.7 5.5 250 Mon 05PM 15SEP25 3.2 4.9 107 4.4 6.6 201 Mon 08PM 15SEP25 3.4 5.0 94 4.2 6.3 169 Mon 11PM 15SEP25 3.5 5.3 63 6.2 9.3 134 Tue 02AM 16SEP25 3.6 5.4 69 7.0 10.4 137 Tue 05AM 16SEP25 4.0 6.0 76 8.1 12.2 137 Tue 08AM 16SEP25 3.5 5.3 41 9.5 14.2 120 Tue 11AM 16SEP25 5.2 7.7 31 11.8 17.7 118 Tue 02PM 16SEP25 4.1 6.1 308 12.7 19.0 223 Tue 05PM 16SEP25 5.5 8.3 276 13.3 19.9 214 Tue 08PM 16SEP25 2.7 4.0 213 9.3 14.0 183 Tue 11PM 16SEP25 3.9 5.8 260 12.0 18.0 199 Wed 02AM 17SEP25 6.3 9.4 247 13.9 20.8 192 Wed 05AM 17SEP25 10.6 15.9 243 20.4 30.7 185 Wed 08AM 17SEP25 11.2 16.8 253 22.1 33.1 195 Wed 11AM 17SEP25 10.5 15.7 209 23.0 34.5 173 Wed 02PM 17SEP25 12.5 18.8 191 20.4 30.6 192 Wed 05PM 17SEP25 10.6 15.9 184 11.2 16.8 193 Wed 08PM 17SEP25 10.5 15.8 170 9.7 14.5 223 Wed 11PM 17SEP25 10.4 15.6 168 5.6 8.3 191 Thu 02AM 18SEP25 6.6 9.9 170 3.4 5.1 143 Thu 05AM 18SEP25 4.7 7.1 163 2.9 4.4 185 Thu 08AM 18SEP25 3.0 4.5 158 2.4 3.7 159 Thu 11AM 18SEP25 2.2 3.3 150 1.5 2.3 191 Thu 02PM 18SEP25 3.5 5.2 108 4.8 7.2 206 Thu 05PM 18SEP25 6.1 9.1 87 8.3 12.5 201 Thu 08PM 18SEP25 9.6 14.4 61 7.6 11.5 187 Thu 11PM 18SEP25 8.4 12.6 29 5.9 8.8 117 Fri 02AM 19SEP25 5.8 8.7 324 4.6 6.9 198 Fri 05AM 19SEP25 7.3 11.0 358 3.8 5.7 125 Fri 08AM 19SEP25 6.5 9.8 54 4.4 6.6 233 Fri 11AM 19SEP25 7.5 11.3 49 3.3 5.0 216 Fri 02PM 19SEP25 7.3 10.9 51 5.5 8.3 202 Fri 05PM 19SEP25 9.2 13.9 55 8.6 12.9 190 Fri 08PM 19SEP25 8.0 12.0 47 5.4 8.1 164 Fri 11PM 19SEP25 6.4 9.7 304 6.3 9.5 207 Sat 02AM 20SEP25 2.1 3.2 239 3.6 5.4 155 Sat 05AM 20SEP25 5.1 7.7 195 8.0 12.0 127 Sat 08AM 20SEP25 8.7 13.0 201 9.8 14.7 136 Sat 11AM 20SEP25 12.1 18.1 196 11.3 16.9 147 Sat 02PM 20SEP25 13.2 19.8 188 10.5 15.8 158 Sat 05PM 20SEP25 14.5 21.7 169 9.6 14.5 83 Sat 08PM 20SEP25 12.4 18.5 177 6.2 9.3 137 Sat 11PM 20SEP25 12.3 18.5 169 6.8 10.2 109 Sun 02AM 21SEP25 13.4 20.1 168 7.7 11.6 116 Sun 05AM 21SEP25 17.3 25.9 168 13.2 19.8 114 Sun 08AM 21SEP25 21.6 32.5 181 16.7 25.0 128 Sun 11AM 21SEP25 20.9 31.4 188 16.5 24.8 148 Sun 02PM 21SEP25 18.9 28.4 187 12.8 19.2 160 Sun 05PM 21SEP25 17.6 26.4 185 12.3 18.5 162 Sun 08PM 21SEP25 17.6 26.3 210 11.4 17.2 102 Sun 11PM 21SEP25 17.9 26.8 172 10.0 15.1 117 Mon 02AM 22SEP25 15.9 23.9 179 10.2 15.3 148 Mon 05AM 22SEP25 15.1 22.7 185 12.2 18.3 152 Mon 08AM 22SEP25 17.4 26.1 203 16.7 25.1 163 Mon 11AM 22SEP25 15.7 23.5 202 15.9 23.9 169 Mon 02PM 22SEP25 17.0 25.5 199 17.8 26.7 174 Mon 05PM 22SEP25 15.4 23.1 194 13.4 20.2 180 Mon 08PM 22SEP25 11.6 17.3 167 11.1 16.7 168 Mon 11PM 22SEP25 15.7 23.6 176 18.4 27.6 175 Tue 02AM 23SEP25 21.6 32.4 185 21.5 32.3 171 Tue 05AM 23SEP25 12.7 19.1 179 13.0 19.6 177 Tue 08AM 23SEP25 10.7 16.1 180 8.5 12.8 196 Tue 11AM 23SEP25 10.0 15.0 194 9.3 13.9 196

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