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Basin4/1/244/8/244/1/244/8/244/8/244/8/24‡Area (mi2)4/1/244/8/244/8/24
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% 4/1 Avg.% 4/8 Avg.SWE (in)SWE (in)% SCAVol (af)> 5000'PillowsPillowsSNODAS* (in)
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Upper Sacramento12313225.331.888.9216,778127.842.0 ( 1 )41.8 ( 1 )41.0
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McCloud12313826.931.788.1301,637178.2NANA41.2
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Pit§1331005.67.538.9912,0862,292.029.7 ( 4 )29.8 ( 4 )7.0
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Sac at Bend Bridge12912419.520.568.1281,260256.7NANA20.9
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Feather§13812613.614.572.61,646,8202,130.536.8 ( 6 )37.3 ( 6 )16.9
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Yuba11112125.628.982.8846,303549.549.0 ( 4 )49.5 ( 4 )36.2
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American§11411620.619.185.8809,991796.528.2 ( 10 )28.1 ( 10 )26.5
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Cosumnes11510317.519.960.999,50393.7NANA17.5
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Mokelumne11212220.727.984.1496,509334.033.6 ( 1 )34.0 ( 1 )28.4
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Stanislaus11512821.627.796.7874,809591.638.3 ( 4 )40.0 ( 4 )27.5
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Tuolumne§11612921.026.095.41,132,609816.930.0 ( 7 )31.4 ( 7 )26.8
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Merced§11512816.421.392.7567,918500.734.0 ( 2 )35.7 ( 2 )25.7
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San Joaquin§11212519.023.092.11,259,6121,028.727.7 ( 7 )28.5 ( 6 )22.1
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Kings§11212317.225.791.91,198,809875.224.8 ( 4 )25.2 ( 4 )22.3
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Kaweah§11212715.116.781.3265,761299.219.9 ( 2 )20.3 ( 2 )20.5
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Tule10411210.310.451.478,380141.6NANA10.3
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Kern§1391327.39.557.1740,6031,457.318.1 ( 8 )20.8 ( 7 )9.0
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Truckee§11712318.517.787.0393,285416.522.5 ( 5 )22.0 ( 5 )20.6
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Tahoe§11712019.319.585.7289,894278.726.6 ( 7 )25.9 ( 7 )22.1
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W Carson11211721.623.192.185,12969.129.8 ( 2 )30.4 ( 2 )25.2
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E Carson12310915.815.365.6312,317381.918.5 ( 5 )23.9 ( 4 )14.9
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W Walker11811521.520.482.2208,069191.230.9 ( 3 )32.0 ( 3 )24.2
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E Walker150†10012.99.750.1193,793375.915.9 ( 1 )16.4 ( 1 )8.8
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Mono157†905.55.027.4280,3481,057.1NANA3.3
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Upper Owens144†10810.310.654.4223,412395.037.3 ( 1 )43.4 ( 1 )7.7
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Owens149†964.44.625.6461,9451,864.815.1 ( 5 )15.7 ( 5 )3.2
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§ Data in all ASO-collected basins have been bias-corrected using ASO data and therefore the SWE changes might not represent snowmelt/accumulation but rather an update to the SWE estimates based on airborne data.
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† Deep and recent snow in areas that typically are snow-free can report high percent of average for this date because the mean 2001-2021 regression-derived SWE for that area is low or 0.
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‡ For volume totals above Shasta Lake add Upper Sac, McCloud and Pit volumes. For volume totals above Bend Bridge add Upper Sac, McCloud, Pit and Sac at Bend Bridge volumes.
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* This is a comparison to the SNODAS (SNOw Data Assimilation System) nationwide product from the National Weather Service.
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