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

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Donner_Summit_I80 - Snow Level 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 Wed 17SEP2025 Day Frcst Time/Date 34.6 Deg Elev 32 Deg Elev 28 Deg Elev Srf Temp (F) Accum Snow (In) Wed 11AM 17SEP25 12658 14067 14697 80.9 - Wed 02PM 17SEP25 12653 14075 14698 83.5 0.0 Wed 05PM 17SEP25 13987 14282 14740 80.2 0.0 Wed 08PM 17SEP25 12655 14029 14689 62.5 0.0 Wed 11PM 17SEP25 12635 14009 14685 62.2 0.0 Thu 02AM 18SEP25 12559 13882 14659 61.5 0.0 Thu 05AM 18SEP25 12566 13910 14665 60.4 0.0 Thu 08AM 18SEP25 12526 13836 14649 64.1 0.0 Thu 11AM 18SEP25 12478 12744 14630 76.0 0.0 Thu 02PM 18SEP25 12419 12687 14601 76.2 0.0 Thu 05PM 18SEP25 12277 12547 14484 69.5 0.0 Thu 08PM 18SEP25 12222 12524 14487 58.7 0.0 Thu 11PM 18SEP25 11950 12272 13837 55.6 0.0 Fri 02AM 19SEP25 10574 11830 12394 56.6 0.0 Fri 05AM 19SEP25 10528 11917 14163 52.5 0.0 Fri 08AM 19SEP25 10642 12070 14189 53.1 0.0 Fri 11AM 19SEP25 10683 12152 14359 54.4 0.0 Fri 02PM 19SEP25 10761 12157 14063 56.0 0.0 Fri 05PM 19SEP25 10754 12156 14115 56.0 0.0 Fri 08PM 19SEP25 11783 12185 14022 54.9 0.0 Fri 11PM 19SEP25 10542 11883 12631 54.4 0.0 Sat 02AM 20SEP25 10603 11969 12577 50.8 0.0 Sat 05AM 20SEP25 10657 12085 14181 49.5 0.0 Sat 08AM 20SEP25 10712 12104 13945 53.8 0.0 Sat 11AM 20SEP25 10694 12106 14053 68.5 0.0 Sat 02PM 20SEP25 10594 11994 14260 71.7 0.0 Sat 05PM 20SEP25 10742 12199 14355 65.8 0.0 Sat 08PM 20SEP25 11838 12266 14319 54.7 0.0 Sat 11PM 20SEP25 12022 12385 14386 53.1 0.0 Sun 02AM 21SEP25 12011 12410 14457 52.6 0.0 Sun 05AM 21SEP25 11989 12356 14350 52.1 0.0 Sun 08AM 21SEP25 11927 12355 14430 58.0 0.0 Sun 11AM 21SEP25 12127 12614 14599 73.4 0.0 Sun 02PM 21SEP25 12031 13877 14658 76.7 0.0 Sun 05PM 21SEP25 12509 13940 14671 73.4 0.0 Sun 08PM 21SEP25 12499 13909 14664 57.4 0.0 Sun 11PM 21SEP25 12766 14153 14714 56.1 0.0 Mon 02AM 22SEP25 13923 14239 14732 56.1 0.0 Mon 05AM 22SEP25 13873 14206 14725 54.9 0.0 Mon 08AM 22SEP25 13939 14250 14734 60.3 0.0 Mon 11AM 22SEP25 13998 14289 14742 80.4 0.0 Mon 02PM 22SEP25 13912 14232 14730 83.1 0.0 Mon 05PM 22SEP25 13997 14288 14742 77.9 0.0 Mon 08PM 22SEP25 12666 14061 14696 61.6 0.0 Mon 11PM 22SEP25 12688 14082 14700 60.5 0.0 Tue 02AM 23SEP25 12629 14022 14687 60.5 0.0 Tue 05AM 23SEP25 12601 14002 14683 58.9 0.0 Tue 08AM 23SEP25 12285 12611 14569 60.7 0.0 Tue 11AM 23SEP25 12165 12440 14301 63.2 0.0 Tue 02PM 23SEP25 10449 11831 12493 57.0 0.0 Tue 05PM 23SEP25 11843 12154 12639 53.6 0.0 Tue 08PM 23SEP25 10552 11819 12268 48.2 0.0 Tue 11PM 23SEP25 10383 10676 12122 50.5 0.0 Wed 02AM 24SEP25 9920 10277 11798 49.1 0.0 Wed 05AM 24SEP25 8834 10184 11927 46.8 0.0 Wed 08AM 24SEP25 8966 10656 12449 49.5 0.0 Wed 11AM 24SEP25 8766 10755 14081 62.2 0.0 Wed 02PM 24SEP25 10110 12147 14284 65.7 0.0 Wed 05PM 24SEP25 11840 12282 14364 62.6 0.0 Wed 08PM 24SEP25 11894 12256 14079 50.0 0.0 Wed 11PM 24SEP25 10627 12002 12684 49.0 0.0 Thu 02AM 25SEP25 10558 11863 12419 49.3 0.0 Thu 05AM 25SEP25 10532 11835 12367 48.3 0.0 Thu 08AM 25SEP25 10509 11812 12378 53.3 0.0 Thu 11AM 25SEP25 10358 10751 12259 64.8 0.0 Thu 02PM 25SEP25 10393 11846 12343 67.9 0.0 Thu 05PM 25SEP25 10343 11873 12422 63.8 0.0 Thu 08PM 25SEP25 10266 10730 12404 49.6 0.0 Thu 11PM 25SEP25 10676 12031 12590 47.4 0.0 Fri 02AM 26SEP25 10245 11856 12656 45.8 0.0 Fri 05AM 26SEP25 8916 10327 12140 44.5 0.0 Fri 08AM 26SEP25 8319 8728 10373 45.5 0.0 Fri 11AM 26SEP25 7192 8570 10207 49.7 0.0 Fri 02PM 26SEP25 8276 8701 10194 46.8 0.0 Fri 05PM 26SEP25 8264 8634 10085 45.8 0.0 Fri 08PM 26SEP25 7198 8445 9951 45.2 0.0 Fri 11PM 26SEP25 6753 7073 8514 42.5 0.0 Sat 02AM 27SEP25 6682 7076 8496 41.4 0.0 Sat 05AM 27SEP25 6482 6868 8304 40.4 0.0 Sat 08AM 27SEP25 6434 6793 8221 40.3 0.0 Sat 11AM 27SEP25 6590 6862 8167 46.9 0.0

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