Massive Westerly Wind Burst Underway - Strong El Nino Developing! - Video HERE (6/28/26)

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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: 18Z Sun 28JUN2026 Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs) Sun 10AM 28JUN26 9.1 14.2 285 4.3 6.5 305 Sun 01PM 28JUN26 7.8 12.2 143 5.1 7.6 54 Sun 04PM 28JUN26 5.9 9.3 163 5.6 8.5 110 Sun 07PM 28JUN26 2.2 6.6 221 3.4 5.1 102 Sun 10PM 28JUN26 7.1 11.1 288 3.2 4.8 307 Mon 01AM 29JUN26 11.8 18.3 266 6.7 10.0 266 Mon 04AM 29JUN26 12.8 19.9 263 9.7 14.6 257 Mon 07AM 29JUN26 13.5 21.0 274 14.5 21.8 272 Mon 10AM 29JUN26 7.3 11.3 279 9.4 14.2 274 Mon 01PM 29JUN26 7.3 11.4 266 9.4 14.1 259 Mon 04PM 29JUN26 6.6 10.4 10 9.6 14.5 14 Mon 07PM 29JUN26 4.4 6.8 102 5.1 7.7 88 Mon 10PM 29JUN26 13.5 21.0 98 10.2 15.3 102 Tue 01AM 30JUN26 7.3 11.4 105 2.5 3.8 111 Tue 04AM 30JUN26 2.0 3.1 150 1.9 2.8 96 Tue 07AM 30JUN26 2.8 4.4 193 4.5 6.8 84 Tue 10AM 30JUN26 3.0 4.7 308 2.3 3.4 316 Tue 01PM 30JUN26 4.9 7.6 252 3.1 4.6 250 Tue 04PM 30JUN26 11.2 17.5 212 11.0 16.4 208 Tue 07PM 30JUN26 7.0 10.9 163 6.8 10.2 236 Tue 10PM 30JUN26 8.9 13.9 166 8.8 13.2 226 Wed 01AM 01JUL26 5.7 8.9 180 7.0 10.5 236 Wed 04AM 01JUL26 5.8 9.0 223 8.5 12.7 244 Wed 07AM 01JUL26 7.3 11.4 265 9.3 14.0 254 Wed 10AM 01JUL26 6.0 9.4 258 7.2 10.9 259 Wed 01PM 01JUL26 9.2 14.3 211 9.3 14.0 214 Wed 04PM 01JUL26 9.5 14.9 205 10.5 15.7 214 Wed 07PM 01JUL26 9.7 15.1 154 5.5 8.3 219 Wed 10PM 01JUL26 8.6 13.4 129 5.0 7.5 152 Thu 01AM 02JUL26 9.0 14.0 163 8.6 12.8 219 Thu 04AM 02JUL26 6.5 10.1 178 9.8 14.8 233 Thu 07AM 02JUL26 6.7 10.5 305 12.5 18.8 230 Thu 10AM 02JUL26 6.1 9.6 279 7.4 11.1 272 Thu 01PM 02JUL26 11.3 17.6 214 12.1 18.1 223 Thu 04PM 02JUL26 9.9 15.5 200 13.0 19.6 236 Thu 07PM 02JUL26 11.1 17.4 156 8.1 12.1 229 Thu 10PM 02JUL26 7.2 11.3 165 6.9 10.4 216 Fri 01AM 03JUL26 6.2 9.6 230 9.0 13.5 229 Fri 04AM 03JUL26 8.1 12.6 254 8.7 13.1 239 Fri 07AM 03JUL26 8.8 13.8 277 8.4 12.6 290 Fri 10AM 03JUL26 6.6 10.3 284 6.9 10.4 281 Fri 01PM 03JUL26 4.3 6.7 255 4.1 6.2 258 Fri 04PM 03JUL26 4.1 6.4 160 5.2 7.7 164 Fri 07PM 03JUL26 8.6 13.4 116 10.2 15.3 119 Fri 10PM 03JUL26 9.4 14.7 155 5.8 8.7 208 Sat 01AM 04JUL26 8.4 13.1 168 9.3 13.9 232 Sat 04AM 04JUL26 8.9 13.8 167 10.7 16.0 233 Sat 07AM 04JUL26 8.6 13.4 147 12.4 18.5 231 Sat 10AM 04JUL26 6.9 10.8 104 7.8 11.7 214 Sat 01PM 04JUL26 5.7 9.0 295 3.9 5.9 271 Sat 04PM 04JUL26 7.0 11.0 188 7.7 11.6 195 Sat 07PM 04JUL26 8.4 13.1 125 5.6 8.5 146 Sat 10PM 04JUL26 9.6 14.9 138 4.7 7.0 175 Sun 01AM 05JUL26 7.4 11.5 158 5.5 8.3 208 Sun 04AM 05JUL26 5.4 8.5 159 4.7 7.0 211 Sun 07AM 05JUL26 4.5 7.0 156 5.4 8.1 226 Sun 10AM 05JUL26 4.1 6.4 304 4.3 6.4 282 Sun 01PM 05JUL26 4.1 6.4 260 2.9 4.4 226 Sun 04PM 05JUL26 6.2 9.6 178 8.0 12.0 184 Sun 07PM 05JUL26 9.0 14.0 127 5.7 8.5 151 Sun 10PM 05JUL26 7.0 10.9 162 6.5 9.8 212 Mon 01AM 06JUL26 6.0 9.4 192 8.3 12.5 235 Mon 04AM 06JUL26 8.3 13.0 217 13.6 20.4 250 Mon 07AM 06JUL26 11.1 17.3 257 15.0 22.5 258 Mon 10AM 06JUL26 10.4 16.2 243 13.0 19.5 248 Mon 01PM 06JUL26 13.6 21.2 225 15.4 23.1 237 Mon 04PM 06JUL26 11.5 17.9 196 14.5 21.8 243 Mon 07PM 06JUL26 12.1 18.8 158 8.7 13.1 220 Mon 10PM 06JUL26 5.2 8.2 143 3.3 5.0 169 Tue 01AM 07JUL26 8.1 12.6 170 10.0 15.0 234 Tue 04AM 07JUL26 7.6 11.8 196 13.7 20.5 238 Tue 07AM 07JUL26 9.3 14.5 278 15.8 23.6 216 Tue 10AM 07JUL26 7.5 11.7 277 10.8 16.1 269 Tue 01PM 07JUL26 11.6 18.1 206 13.6 20.4 231 Tue 04PM 07JUL26 11.0 17.2 205 13.2 19.8 233 Tue 07PM 07JUL26 8.9 13.9 161 7.9 11.8 224 Tue 10PM 07JUL26 7.8 12.2 165 7.3 10.9 218 Wed 01AM 08JUL26 6.5 10.1 218 9.8 14.7 231 Wed 04AM 08JUL26 8.6 13.4 233 13.0 19.5 248 Wed 07AM 08JUL26 9.8 15.3 255 12.7 19.1 254 Wed 10AM 08JUL26 9.7 15.1 250 11.0 16.5 253

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