From mavensnotebook.com (towards the bottom of the page) – “The April 25, 2020 Real time SWE Report (in PDF format) for the Sierra Nevada Mountains is now available. The regional summary map (first figure in the report) shows the mean SWE above 5000′ elevation for three major regions of the Sierra Nevada. As of April 25^th regional average SWE remains below average across the Sierra, with percent of average SWE highest in the south (65%), central (60%) and lowest in the north (34%).“ (more).