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12/23/2024
WT Staff
 Got water questions? Give us a call at 877-52-WATER (877-529-2837), or email us at info@watertoday.ca
December 23, 2024 941 am PST
Coastal Flood Warning for San Francisco, North Bay to Big Sur
Coastal Flood Warning issued by NWS San Francisco 9 am Mon Dec 23
COASTAL FLOOD WARNING WITH HIGH SURF WARNING REMAINS IN EFFECT UNTIL NOON PST TUESDAY
Coastal flooding in low lying areas. For the High Surf Warning, dangerously large
breaking waves of 25 to 35 feet, with largest wave sets up to 50 feet at favored spots.
Life-threatening swimming and surfing conditions and significant shoreline erosion can be expected. Numerous roads may be closed, and sand berms over-topped. Large waves can sweep across the beach without warning, pulling people into the sea from rocks, jetties and beaches. Sudden immersion in cold
water can result in cold water shock even for the most experienced swimmers. Cold water shock can result in dramatic changes in breathing, heart rate and blood pressure, greatly increasing the risk of drowning in rough open waters.
Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.
Everyone should remain out of the water due to life-threatening
surf conditions. Stay off of jetties, piers, and other waterside
infrastructure.
Impacting Coastal North Bay Including Point Reyes National Seashore-
San Francisco Peninsula Coast-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast
Streamflow Situation from the network of USGS river flow gauges in California
Mist, 52 degrees at Visalia Municipal Airport with a high expected around 65 under sunny skies in the central valley. San Francisco reports 56 degrees with multiple hazards in effect, 20% chance of rain showers today increasing to 90% chance of rain tonight, mostly after 1 am, up to half an inch possible. Coastal flooding with high surf warning is in effect until tomorrow at noon, stay away from the water as waves up to 50 ft can pull people off the beach and jetties. Los Angeles is under an air quality advisory today, high 69, rain likely tomorrow. San Diego is under a high surf advisory until 4 am Dec 25, NWS warns of large breaking waves of 6 to 10 feet in San Diego County, with local sets to 13 feet. Waves of 5 to 8 feet in Orange County, with local sets to 12 feet on west-facing beaches.
Streamflows run normal to much above normal in the North Coast Region 1, San Francisco, Central Coast and central valley watershed Region 5, with above normal streamflows in Los Angeles to San Diego watersheds. Interion Colorado River and Lahontan watershed regions remain below seasonal, Lahontan continues with extreme drought in southeast Inyo County, below normal conditions through the remainder of Inyo extending over the height of land divide into the Colorado River watershed's west San Bernardino County. Riverside and Imperial Counties are no longer rated below normal on the drought map.
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