
A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >
The Monthly Hydrologic Conditions Report (NWS E-5) will typically be posted by the 15th of the following Month.
Latest Monthly Hydrologic Conditions Report: November 2025
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If you have any questions please contact nws.caribou@noaa.gov