UC Berkeley Central Sierra Snow Lab
@UCB_CSSL • 23,557 subscribers
The CSSL is a research station of UC Berkeley specializing in snow physics, snow hydrology, meteorology, and climatology. The lab is at an elevation of 6894 ft.
Shorts
MASSIVE STATISTIC: Official #snowfall rates of 7.5" per hour at the lab between 4-5pm today. Snow is light and fluffy. Onsite researcher recorded the daily 4pm measurement and went back to check accumulation an hour later. #CAwx #CAwater #CAsnow #Snow #Weather #AtmosphericRiver
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2/17/26 8:55am Update: It. Is. Dumping. We had 28.1" (71.5 cm) of #snow in the last day and we're expecting another 2-3 feet by tomorrow night. Anecdotally, the combination of low visibility, intense snowfall, and high winds have created the worst conditions since Feb 2023!
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We have a deep 30.5" (77.5 cm) of new #snow that has fallen over the last 24 hours. Our season total is now 562" (14.29 m) and we're now within one foot of the 2016/2017 winter snowfall total. We're expecting another 2-4 feet through tomorrow and more this week! #CAwx #CAwater
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4/12/26 9:35am Update: Heavy #snow started yesterday evening and continued into the night, bringing 13.6" (34.5 cm). That brings our 2-day snow total to 21.5" (54.5 cm). Snowfall and low visibility are still present and we're expecting another 5-10" by tomorrow. #weather #CAwx
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A very light and fluffy 36" (91.5 cm) of new #snow over the last 24 hours! That brings our 2-day total to 52.2" (132.5 cm) and our 7-day total to 109.3" (277.5 cm)! We are now within 6.5 feet of our 2016/2017 winter season (47.77 feet). Plenty more on the way! #CAwx #CAwater
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Happy first day of meteorological spring! We've had 35" of new #snow over the last day. That brings our 3-day total to 87.2" (221.5 cm) and our 7-day total to 141.9" (360.5 cm)! Our season total is now 531" and we're ~42" from the '16/'17 winter record. 1/2 #CAwx #CAwater
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3/2/24 8:45am Update: We received 20.7" (52.5 cm) of #snow in the last day, which brings our storm total to 39.8" (101 cm) so far. Several more feet are expected by Monday morning. We lost power overnight but were able to keep all systems online. It's back on for now.
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12/25/25 9:35am Update: Good morning and Merry Christmas! It's a snowy one for us. We received 23.6" (60 cm) of #snow in the last day, which brings our 2-day total to 24.8" (63 cm). We're expecting another 2-3 feet, mostly today but a little tomorrow as well. #CAwx #weather
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We have received 19.1" (48.5 cm) of #snow in the last day. Snowpack at the lab is now 102% of median to date. Conditions have already deteriorated this morning with gusty winds and significantly reduced visibility. The next 24 hours will be the heaviest portion of the storm.
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We had 19.3" (49 cm) of #snow in the last 24 hours and have seen some brief rain this morning as well, snow is now falling. We are expecting a switch to rain later this morning. Power went out briefly overnight, shutting down our livestream but it's back up. #CAwx #CAwater
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1/4/26 9:20am Update: 1-day ❄️: 14.4" (36.5 cm) 2-day ❄️: 19.7" (50 cm) Plenty more #snow is expected today and into tomorrow with potential for another 8-16". #CAwx #CAwater #weather
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4/21/26 9:30am Update: #Snow began early this morning and we've accumulated 3.5" (9 cm). We are expecting 1-2 feet total from this storm. Right now we have moderate to heavy snowfall rates with low winds but speeds are expected to increase this afternoon. #weather #CAwater
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10/13/25 9:30am Update: Not enough #snow for a measurement this morning because we only measure accumulation greater than 0.5 cm (0.2"). Something tells us we'll have enough within the next 24 hours though... #CAwx #CAwater
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It is DUMPING out here! Who ordered the #snow? #CAwx #CAwater
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We barely got to the threshold but yesterday was the first official snowfall of the 2025 water year (2024/2025 winter season) at the lab with 0.2" (0.5 cm)! Here's a relaxing video of the snow falling to start off your Friday! #snow #CAwx #CAwater
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11/5/2025 9:35am Update: The storm has arrived and is bringing us #snow. In fact, between the snow and windy conditions, it's absolutely dumping out there! Most of the precipitation is expected to be rain, so we probably won't see too much accumulation, if any. #CAwx #CAwater
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10/15/25 9:20am Update: It's official! Our first measurable snowfall happened. We had 7.3" (18.5 cm) of #snow accumulation at our measurement this morning. It looks like we're done with snow for the next 10 days but we'll be watching the forecast excitedly. #CAwx #CAwater
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Videos
FIRST #SNOW OF THE SEASON ❄️🌨️❄️ #CAwx #CAwater
UC Berkeley Central Sierra Snow Lab59,898 views • 1 year ago
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