A powerful atmospheric river event is expected to bring heavy rain, “potentially life-threatening flash flooding,” and high-elevation mountain snow to much of California Sunday through Tuesday morning. Track the storm with the interactive radar map below.

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Use the controls or your thumb to move the map, zoom, and add LAYERS for satellite imagery, temperatures, severe weather alerts, and precipitation. The satellite and weather radar updates approximately every 5 minutes. Hit the play icon to start the animated loop.

Pineapple Express Storm Timing
A chart showing rainfall intensity and timing. Feb. 4, 2024. (National Weather Service)