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And Just Like That - We're Back in the Hole! - Video Forecast HERE (7/27/25)

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Donner_Summit_I80 - Wind Forecast
Location: 39.34N 120.34W
Base Elevation: 7259 ft
Peak Elevation: 7259 ft

 

240 hour GFS Model (0.25 deg) - 3 hr incrememts

 

Data

Initialized: 18Z Mon 28JUL2025
Day Frcst Time/Date Speed (kts) Gust (kts) Dir (degs) MidSpd (kts) Gust (kts) Dir (degs)
Mon 11AM 28JUL25 4.7 7.0 317 - - -
Mon 02PM 28JUL25 4.6 6.9 299 - - -
Mon 05PM 28JUL25 4.0 6.0 231 - - -
Mon 08PM 28JUL25 6.9 10.3 194 - - -
Mon 11PM 28JUL25 8.6 12.9 17 - - -
Tue 02AM 29JUL25 8.4 12.6 14 - - -
Tue 05AM 29JUL25 5.3 8.0 15 - - -
Tue 08AM 29JUL25 7.4 11.2 9 - - -
Tue 11AM 29JUL25 7.2 10.7 336 - - -
Tue 02PM 29JUL25 5.6 8.4 318 - - -
Tue 05PM 29JUL25 6.6 9.8 214 - - -
Tue 08PM 29JUL25 2.1 3.1 224 - - -
Tue 11PM 29JUL25 4.1 6.1 20 - - -
Wed 02AM 30JUL25 5.4 8.1 14 - - -
Wed 05AM 30JUL25 7.5 11.2 11 - - -
Wed 08AM 30JUL25 2.1 3.1 328 - - -
Wed 11AM 30JUL25 3.5 5.3 290 - - -
Wed 02PM 30JUL25 5.9 8.8 239 - - -
Wed 05PM 30JUL25 9.0 13.5 209 - - -
Wed 08PM 30JUL25 9.3 13.9 186 - - -
Wed 11PM 30JUL25 5.7 8.6 163 - - -
Thu 02AM 31JUL25 4.6 6.9 164 - - -
Thu 05AM 31JUL25 1.7 2.6 98 - - -
Thu 08AM 31JUL25 2.4 3.5 171 - - -
Thu 11AM 31JUL25 5.1 7.7 236 - - -
Thu 02PM 31JUL25 4.6 6.8 251 - - -
Thu 05PM 31JUL25 5.6 8.4 231 - - -
Thu 08PM 31JUL25 7.6 11.5 189 - - -
Thu 11PM 31JUL25 6.8 10.2 171 - - -
Fri 02AM 01AUG25 5.0 7.5 162 - - -
Fri 05AM 01AUG25 1.8 2.7 74 - - -
Fri 08AM 01AUG25 2.0 3.0 174 - - -
Fri 11AM 01AUG25 5.2 7.8 242 - - -
Fri 02PM 01AUG25 6.6 9.9 232 - - -
Fri 05PM 01AUG25 8.2 12.3 217 - - -
Fri 08PM 01AUG25 11.9 17.8 188 - - -
Fri 11PM 01AUG25 13.6 20.4 176 - - -
Sat 02AM 02AUG25 14.6 22.0 177 - - -
Sat 05AM 02AUG25 13.8 20.7 176 - - -
Sat 08AM 02AUG25 12.6 19.0 182 - - -
Sat 11AM 02AUG25 11.7 17.6 205 - - -
Sat 02PM 02AUG25 11.8 17.7 203 - - -
Sat 05PM 02AUG25 14.5 21.8 197 - - -
Sat 08PM 02AUG25 15.3 23.0 187 - - -
Sat 11PM 02AUG25 14.5 21.7 175 - - -
Sun 02AM 03AUG25 13.2 19.7 175 - - -
Sun 05AM 03AUG25 12.1 18.1 174 - - -
Sun 08AM 03AUG25 10.9 16.3 179 - - -
Sun 11AM 03AUG25 9.1 13.7 203 - - -
Sun 02PM 03AUG25 9.1 13.6 207 - - -
Sun 05PM 03AUG25 10.4 15.6 204 - - -
Sun 08PM 03AUG25 10.2 15.3 185 - - -
Sun 11PM 03AUG25 9.4 14.1 171 - - -
Mon 02AM 04AUG25 6.9 10.4 169 - - -
Mon 05AM 04AUG25 7.1 10.7 167 - - -
Mon 08AM 04AUG25 6.1 9.1 175 - - -
Mon 11AM 04AUG25 3.1 4.6 212 - - -
Mon 02PM 04AUG25 2.3 3.4 282 - - -
Mon 05PM 04AUG25 1.3 1.9 296 - - -
Mon 08PM 04AUG25 2.2 3.4 111 - - -
Mon 11PM 04AUG25 5.1 7.7 27 - - -
Tue 02AM 05AUG25 2.8 4.2 151 - - -
Tue 05AM 05AUG25 3.5 5.3 160 - - -
Tue 08AM 05AUG25 3.9 5.9 177 - - -
Tue 11AM 05AUG25 3.9 5.8 235 - - -
Tue 02PM 05AUG25 4.5 6.8 299 - - -
Tue 05PM 05AUG25 3.0 4.5 245 - - -
Tue 08PM 05AUG25 2.9 4.4 343 - - -
Tue 11PM 05AUG25 12.9 19.3 8 - - -
Wed 02AM 06AUG25 12.5 18.7 12 - - -
Wed 05AM 06AUG25 10.7 16.1 11 - - -
Wed 08AM 06AUG25 9.7 14.5 353 - - -
Wed 11AM 06AUG25 8.9 13.3 335 - - -
Wed 02PM 06AUG25 6.2 9.4 310 - - -
Wed 05PM 06AUG25 4.3 6.5 259 - - -
Wed 08PM 06AUG25 5.3 7.9 185 - - -
Wed 11PM 06AUG25 4.5 6.8 162 - - -
Thu 02AM 07AUG25 2.8 4.3 155 - - -
Thu 05AM 07AUG25 2.3 3.5 144 - - -
Thu 08AM 07AUG25 3.7 5.5 171 - - -
Thu 11AM 07AUG25 2.8 4.1 219 - - -

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