Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

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 >

NO active tropical cyclones at this time.

Thu, Dec 25, 4:32 PM ChST

The tropical systems depicted in these graphics are west of 180 (dateline) and based on bulletins issued by the Joint Typhoon Warning Center (JTWC), based in Honolulu, HI, and generated by the Central Pacific Hurricane Center (CPHC), based in Honolulu, HI for cyclones between EQ-25N and 180-130E. The Regional Specialized Meteorological Center (RSMC) for this area is the Japan Meteorological Agency (JMA).

To learn more the new probabilistic tropical cyclone graphics, read our introduction here: Introducing New Probabilistic TC Graphics PDF

Printer-friendly typhoon tracking chart (landscape)

Tropical Cyclone Public Advisories issued by WFO Guam for Guam, the Marianas and Micronesia are available via xml feed at https://www.weather.gov/source/hfo/xml/HFOTCPPQ.xml.