Bay Area Shorelines placed under a coastal flood advisory until Sunday afternoon
Bay Area Shorelines is the focus of a coastal flood advisory released at 5:10 a.m. on Thursday by the National Weather Service. The advisory is in effect until Sunday Jan. 4, at 2 p.m.
“Up to 2.5 ft of inundation above ground level is possible in low-lying areas near shorelines and tidal waterways,” can be expected according to the NWS San Francisco CA. “At the San Francisco tidal gauge, high tide is expected to be: 2.0 ft above normal (7.8 ft MLLW) at 8:41 a.m. Thursday 1/1 2.2 ft above normal (8.0 ft MLLW) at 9:34 a.m. Friday 1/2 2.5 ft above normal (8.30 ft MLLW) at 10:26 a.m. Saturday 1/3 1.8 ft above normal (7.6 ft MLLW) at 11:18 a.m. Sunday 1/4 These predictions include up to 1.3 feet of storm surge that will enhance the astronomical tide and flooding threat. High tide varies up to 90 minutes earlier or later along the Pacific Coast and through the San Francisco Bay, respectively.”
“Flooding of lots, parks, and roads with only isolated road closures expected,” the NWS said. “If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.”
The full list of affected locations includes:
- Coastal North Bay including Point Reyes National Seashore
- North Bay Interior Valleys
- San Francisco Bay Shoreline
- San Francisco Peninsula Coast
- Northern Monterey Bay
- Southern Monterey Bay and Big Sur Coast
- San Francisco County
How to use a sandbag and where to get sandbags in your area:
Follow these instructions on how to use sandbags and other flood preparation tips to protect your home, and click on the links below to get sandbags in your county:
Where to get sandbags in San Mateo County
Where to get sandbags in Alameda County
Where to get sandbags in Santa Clara County
Breaking down weather alerts: advisories, watches, and warnings
- Flash flood warning: Take action!
A flash flood warning is issued when a flash flood is imminent or occurring. If you are in a flood-prone area, move immediately to high ground. A flash flood is a sudden violent flood that can take from minutes to hours to develop. It is even possible to experience a flash flood in areas not immediately receiving rain.
- Flood warning: Take action!
A flood warning is declared when flooding is on the verge of happening or is already underway.
- Flood advisory: Be aware:
A flood advisory is issued when flooding is not expected to be bad enough to issue a warning. However, it may cause significant inconvenience, and if caution is not exercised, it could lead to situations that may threaten life and/or property.
- Flood watch: Be prepared:
A flood watch is issued when conditions are favorable for flooding. It doesn’t guarantee that flooding will occur, but it signifies that the possibility exists.
Weathering the storm: Flood safety guidelines from the NWS
In flood-prone regions or while camping in low-lying areas, understanding and following the NWS flood safety guidelines can be a lifesaver:
Move to higher ground:
If you reside in a flood-prone region or are camping in low-lying terrain, the first step to safety is relocating to higher ground.
Adhere to evacuation orders:
When local authorities issue an evacuation order, promptly comply. Before leaving, secure your home by locking it.
Disconnect utilities and appliances:
If time permits, disconnect your utilities and appliances. This precaution minimizes electrical hazards during flooding.
Steer clear of flooded basements and submerged areas:
Steer clear of basements or rooms where water has submerged electrical outlets or cords. This helps prevent electrical accidents.
Evacuate promptly for safety:
If you notice sparks or hear buzzing, crackling, snapping, or popping noises, evacuate immediately. Avoid any water that may be charged with electricity.
Stay away from floodwaters:
Never attempt to walk through floodwaters. Even just 6 inches of swiftly moving water can forcefully knock you off your feet.
Seek higher ground when trapped:
In the event you become trapped by moving water, make your way to the highest point available and contact emergency services by calling 911.
When heavy rain occurs, there is a potential for flooding, particularly in areas that are low-lying or prone to floods. It is crucial to never drive through water on the road, even if it appears shallow. According to the NWS, as little as 12 inches of fast-flowing water can carry away most vehicles. Prioritize your safety by staying informed and prepared.
For more weather alerts in the Bay Area, visit Weather Advisories