San Rafael Faces Atmospheric River Risks During Rainy Season
San Rafael, California, experiences its highest weather risks during the atmospheric river season, which spans from November to March. These events are the primary drivers of precipitation in the region, often leading to heavy rainfall. The San Rafael rain radar, powered by data from NEXRAD stations such as KVTX (Los Angeles), KMUX (Mt. Umunhum/San Jose), and KBBX (Sacramento), provides real-time precipitation updates every 4–6 minutes with a resolution of up to 250 meters. This radar system is particularly useful during seasonal transitions when storm behavior becomes less predictable. The drier season, from May to September, typically sees reduced rainfall activity. 
