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 >
Last Update: 1031 PM EST Wed Dec 24 2025
For More Weather Information:
3NM SE Key Largo FL
Marine Zone Forecast
Overnight
Northeast to east winds 15 to 20 knots, decreasing to near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Nearshore waters choppy, becoming a moderate chop.
Thursday
Northeast to east winds 10 to 15 knots, decreasing to 5 to 10 knots. Seas around 2 feet, subsiding to 1 to 2 feet. nearshore waters a light to moderate chop, becoming smooth to a light chop. Isolated showers.
Thursday Night
Northeast to east winds 5 to 10 knots, becoming north to northeast and increasing to near 10 knots. Seas 1 to 2 feet, except around 2 feet west of cosgrove shoal light. nearshore waters smooth to a light chop, becoming a light chop. isolated showers.
Friday
North to northeast winds near 10 knots, decreasing to near 5 knots. Seas 1 to 2 feet, subsiding to around 1 foot. nearshore waters a light chop, becoming smooth. Isolated showers.
Friday Night
North to northeast winds near 5 knots. Seas around 1 foot. Nearshore waters smooth.
Saturday
North to northeast winds near 5 knots, becoming northeast. Seas 1 foot or less. Nearshore waters smooth.
Saturday Night
Northeast to east winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth.
Sunday
Northeast to east winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
Sunday Night
Northeast to east winds near 5 knots, becoming north to northeast. Seas 1 foot or less. Nearshore waters smooth.
Monday
North winds 5 to 10 knots, becoming northwest to north. Seas around 1 foot. Nearshore waters smooth to a light chop.
Monday Night
Northwest winds near 10 knots, increasing to 10 to 15 knots. Seas 1 to 2 feet, except building to 2 to 3 feet west of cosgrove shoal light. Nearshore waters a light chop, becoming a light to moderate chop. Isolated showers.
Additional Forecasts and Information
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