Active MJO Pushes East - What Effect Will Coming Inactive Phase Have? - Video Forecast HERE (12/7/25)

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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 Thu 11DEC2025 Day Frcst Time/Date 34.6 Deg Elev 32 Deg Elev 28 Deg Elev Srf Temp (F) Accum Snow (In) Thu 10AM 11DEC25 12185 12467 14376 64.6 - Thu 01PM 11DEC25 12161 12423 14192 69.4 0.0 Thu 04PM 11DEC25 12145 12401 14034 57.6 0.0 Thu 07PM 11DEC25 12158 12419 14165 49.1 0.0 Thu 10PM 11DEC25 12184 12455 14324 47.6 0.0 Fri 01AM 12DEC25 12173 12451 14334 47.0 0.0 Fri 04AM 12DEC25 12149 12438 14335 46.2 0.0 Fri 07AM 12DEC25 12162 12458 14390 45.2 0.0 Fri 10AM 12DEC25 12162 12473 14436 63.7 0.0 Fri 01PM 12DEC25 12156 12473 14443 69.1 0.0 Fri 04PM 12DEC25 12136 12456 14426 56.2 0.0 Fri 07PM 12DEC25 12075 12391 14303 47.4 0.0 Fri 10PM 12DEC25 12024 12335 14104 46.2 0.0 Sat 01AM 13DEC25 12025 12343 14168 45.5 0.0 Sat 04AM 13DEC25 11990 12311 14064 45.4 0.0 Sat 07AM 13DEC25 11848 12190 12725 45.5 0.0 Sat 10AM 13DEC25 10756 12058 12579 62.9 0.0 Sat 01PM 13DEC25 10642 11950 12459 65.0 0.0 Sat 04PM 13DEC25 10543 11855 12377 54.3 0.0 Sat 07PM 13DEC25 10453 10803 12306 47.1 0.0 Sat 10PM 13DEC25 10336 10694 12189 46.1 0.0 Sun 01AM 14DEC25 10285 10650 12132 45.2 0.0 Sun 04AM 14DEC25 10284 10631 12095 44.1 0.0 Sun 07AM 14DEC25 10247 10598 12078 43.3 0.0 Sun 10AM 14DEC25 10194 10573 12084 59.5 0.0 Sun 01PM 14DEC25 10361 10717 12179 63.0 0.0 Sun 04PM 14DEC25 10353 10719 12187 52.5 0.0 Sun 07PM 14DEC25 10462 11805 12308 46.6 0.0 Sun 10PM 14DEC25 10537 11846 12392 45.2 0.0 Mon 01AM 15DEC25 10548 11882 12443 44.8 0.0 Mon 04AM 15DEC25 10480 11829 12447 44.5 0.0 Mon 07AM 15DEC25 10564 11920 12510 46.0 0.0 Mon 10AM 15DEC25 10744 12058 12582 59.3 0.0 Mon 01PM 15DEC25 10798 12093 12603 62.3 0.0 Mon 04PM 15DEC25 10597 11964 12504 52.4 0.0 Mon 07PM 15DEC25 10517 11844 12410 47.4 0.0 Mon 10PM 15DEC25 10262 10617 12146 46.6 0.0 Tue 01AM 16DEC25 10102 10491 12101 46.7 0.0 Tue 04AM 16DEC25 10037 10416 12009 47.0 0.0 Tue 07AM 16DEC25 9966 10337 11884 48.3 0.0 Tue 10AM 16DEC25 8961 10293 11912 49.9 0.0 Tue 01PM 16DEC25 8875 10259 11933 47.6 0.0 Tue 04PM 16DEC25 9893 10357 11933 46.4 0.0 Tue 07PM 16DEC25 8701 9998 10561 46.1 0.0 Tue 10PM 16DEC25 8205 8652 10289 44.9 0.0 Wed 01AM 17DEC25 6935 8175 8655 43.0 0.0 Wed 04AM 17DEC25 6504 6839 8286 41.2 0.0 Wed 07AM 17DEC25 5456 6580 7060 39.6 0.0 Wed 10AM 17DEC25 5472 6594 7100 41.8 0.0 Wed 01PM 17DEC25 5287 5566 7189 39.4 0.0 Wed 04PM 17DEC25 5172 5481 8375 37.9 0.0 Wed 07PM 17DEC25 5066 5495 8701 35.9 0.0 Wed 10PM 17DEC25 4907 5277 6902 35.3 0.0 Thu 01AM 18DEC25 3482 3868 5294 30.5 0.0 Thu 04AM 18DEC25 3466 3826 5173 30.7 21.9 Thu 07AM 18DEC25 3678 4823 5383 31.9 22.7 Thu 10AM 18DEC25 3804 4933 5471 33.3 24.1 Thu 01PM 18DEC25 3874 5002 5542 33.8 24.5 Thu 04PM 18DEC25 4900 5202 6480 35.4 0.0 Thu 07PM 18DEC25 3349 3808 6550 28.6 0.0 Thu 10PM 18DEC25 3458 3896 6763 29.5 0.0 Fri 01AM 19DEC25 3466 3922 6456 29.4 24.6 Fri 04AM 19DEC25 3779 4926 5489 32.6 24.7 Fri 07AM 19DEC25 3693 4832 5378 32.2 0.0 Fri 10AM 19DEC25 3792 4906 5405 33.7 25.0 Fri 01PM 19DEC25 5009 5293 6574 37.3 25.2 Fri 04PM 19DEC25 3971 5133 6569 34.3 26.0 Fri 07PM 19DEC25 4795 5141 6497 34.5 26.6 Fri 10PM 19DEC25 4975 5273 6541 34.4 0.0 Sat 01AM 20DEC25 3399 3934 6455 28.7 0.0 Sat 04AM 20DEC25 2828 3509 6833 26.9 0.0 Sat 07AM 20DEC25 2836 6537 8420 26.8 0.0 Sat 10AM 20DEC25 6459 6918 8568 38.1 0.0 Sat 01PM 20DEC25 6427 6933 8604 42.8 0.0 Sat 04PM 20DEC25 6740 7209 8696 38.3 0.0 Sat 07PM 20DEC25 7055 8274 8784 30.9 0.0 Sat 10PM 20DEC25 7088 8307 8847 30.6 0.0 Sun 01AM 21DEC25 7092 8304 8838 29.8 0.0 Sun 04AM 21DEC25 6996 8255 8890 33.0 0.0 Sun 07AM 21DEC25 7204 8498 10085 36.2 0.0 Sun 10AM 21DEC25 5190 8178 10428 35.0 0.0

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