Winter Storm Data 2023-2024
MOUNTAIN SYSTEM MONITORING: WINTER STORM DATA
See the PDF Reports and Excel Workbook page for the current CSAS Storms and Precip workbook (up to WY2023), and PDFs of all the winter storm reports per water year.
The CSAS Storms and Precip workbook contains the past 20 seasons of CSAS winter storm data, including:
- Dates, times and duration of each winter storm event (2003-current)
- Change in the height of snow at both our alpine Senator Beck study plot and our subalpine Swamp Angel site.
- Peak gust data from our Putney site.
- Mean and maximum precipitation intensity during each storm
- Total new water accumulation in mm for each storm event.
- Summary data for each month of the season.
- Cumulative annual precipitation graph by month
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)
2023-2024 Winter Storm Reports
Storm Report #20, May 9-11: A few inches, we love an albedo reset
Storm Report #19, May 5-6: Bringer-of-dust
Storm Report #18, April 25-28: A fresh 9 inches over four days
Storm Report #17, April 15-16: Brief storm, 5 inches at Swamp Angel
Storm Report #16, April 5-7: Windy storm, new light dust layer
Storm Report #15, March 26-27: One more little storm, snowpack at 2 meters
Storm Report #14, March 23-25: Another good dump at Swampy, not so much up high
Storm Report #13, March 12-15: Over a foot at Swamp Angel
Storm Report #12, March 3-4: A few inches of snow at Swamp Angel
Storm Report #11, February 26-28: Too windy for accumulation at Senator Beck
Storm Report #10, February 6-8: Another long one, more gain at Senator Beck
Storm Report #9, February 1-3: Two+ feet at Swamp Angel
Storm Report #8, January 17-18, 2024: A few more inches
Storm Report #7, January 10-15, 2024: Two feet over five days!
Storm Report #6, January 6-8, 2024: Back to back storms
Storm Report #5, January 4-6, 2024: 9 inches at Swamp Angel
Storm Report #4, December 13-14, 2023: Short, intense storm
* Station troubles at the moment; we’re working on it.
