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 >

Marianas Surf Zone Reef Displays
Guam Surf Zones	Rota Surf Zones	Tinian Surf Zones	Saipan Surf Zones

High Surf Warning Criteria (feet)
Location	All Reefs
Guam, Rota, Tinian, Saipan, Palau, Yap, Chuuk, Pohnpei, Kosrae and Majuro	15

High Surf Advisory Criteria (feet)
Location	North Facing	East Facing	South Facing	West Facing
Guam, Rota, Tinian, Saipan, Palau, Yap, Chuuk and Pohnpei	9	12	9	9
Kosrae	9	8	8	9
Majuro	12	12	8	9

Rip Current Risk Criteria (feet) for Guam, Rota, Tinian and Saipan
Rip Risk Level	All Reefs
Low Risk	1 to 4
Moderate Risk	5 to 8
High Risk	≥ 9