Winter Storm Data 2024-2025

MOUNTAIN SYSTEM MONITORING: WINTER STORM DATA

See our Current Conditions page for the latest hourly data. All times shown are in Mountain Standard Time (MST).

• CSAS Storm Definition >= 12 mm SWE with no break in precipitation >12 hours
• SASP =Swamp Angel Study Plot(11,060′, in sub-alpine meadow)
• SBSP =Senator Beck Study Plot(12,186′, on alpine bench)
• PTSP =Putney Study Plot(12,323′ alpine ridge ‘free air’ site)

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2024-2025 Winter Storm Reports

Storm Report #15, April 17, 2025: A multi-day storm, a needed albedo reset

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PTSP Storm 15 Windrose

Storm Report #14, April 1, 2025: Two-day storms drops a foot of new accumulation

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PTSP Storm 14 Windrose

Storm Report #13, March 17, 2025: Potential dust, 11.5″ snow depth accumulation

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PTSP Storm 13 Windrose

Storm Report #12, March 12, 2025: A mellow, overnight storm

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PTSP Storm 12 Windrose

Storm Report #11, March 5, 2025: High, tail-end winds

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PTSP Storm 11 Windrose

Storm Report #10, March 3, 2025: 1.8″ SWE, 12″ depth

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PSTP Storm 10 Windrose

Storm Report #9, February 17, 2025: A short follow-up

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PTSP Storm 9 Windrose

Storm Report #8, February 13, 2025: Atmospheric river drops 29″

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Storm Report #7, January 4, 2025: 10″ over the weekend

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Storm Report #6, December 26, 2024: Almost a foot of snow accumulation at Swamp Angel

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Storm Report #5, December 24, 2024: Holiday flurries!

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Storm Report #4, November 25, 2024: Thanksgiving storm

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Storm Report #3, November 5, 2024

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Storm Report #2, October 29, 2024

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Storm Report #1, October 16, 2024: First storm of the season

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