
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 NWS Integrated Dissemination Program (IDP) infrastructure hosts NWS applications and is operated by NCEP Central Operations (NCO) at on-premises data centers. Application requirements and release prioritization are developed through the NWS Office of Dissemination.