Heavy Rain and Flash Flooding Concerns in California; Heavy Snow in the Sierra

An atmospheric river will bring heavy rainfall to lower elevations of California this week, and heavy snow to the Sierra Nevada mountains. Flash flooding, some of which may be locally considerable, will be a concern on the western foothills of the Sierra Nevada mountains through Tuesday. Landslides, rockfalls and mudslides are possible in the Southern California mountains. 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