Probabilistic Heavy Snow and Icing Discussion
NWS Weather Prediction Center College Park MD
334 PM EDT Thu Apr 24 2025

Valid 00Z Fri Apr 25 2025 - 00Z Mon Apr 28 2025


...Sierra Nevada...
Days 1-3...

Digging trough west of 130W this evening will slip into the CA
coast overnight with light snow breaking out tomorrow over the high
Sierra as initial height falls cross the mountains. Upper low will
eventually come ashore on Saturday with downstream light to
occasionally moderate snow for the Sierra as snow levels lower to
around 5000-6000ft with the approach of the cold core. By Sunday,
the upper low will cross through the Great Basin, with snow ending
from west to east. WPC probabilities for at least 8 inches of snow
over the next three days are >50% above 6500ft or so.


The probability of at least 0.10" of freezing rain across CONUS is
less than 10%.

Fracasso