Orange County Coast and San Diego County Coastal Areas are under a coastal flood advisory which was issued by the National Weather Service on Wednesday at 11:46 a.m. The advisory is valid from Thursday 1 p.m. until Friday Oct. 30, at 2 p.m.

“Minor coastal flooding expected,” the NWS San Diego CA said. “Coastal residents and managers of infrastructure in the warned/advisory area should prepare for rising water and take appropriate action to protect life and property. Highest tides will occur around 11 a.m. on Thursday and noon on Friday. Observed high tides are 1.4 to 1.6 feet above astronomical tide predictions.”

“Numerous roads may be closed. Low-lying property including homes, businesses, and some critical infrastructure will be inundated. Some shoreline erosion will occur,” according to the NWS. “Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth.”

Coastal flood advisory for Orange County Coast and San Diego County Coastal Areas for Thursday and Friday

Breaking down weather alerts: advisories, watches, and warnings

Flash flood warning: Take action.

A flash flood warning is issued when a flash flood is either imminent or already occurring. In flood-prone areas, it’s crucial to move immediately to higher ground. A flash flood is a sudden and violent inundation that can develop within minutes to hours, and it can even happen in areas not currently experiencing rainfall.

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 released when flooding is not expected to reach a severity level necessitating a warning. Nonetheless, it can still cause considerable inconvenience and, without exercising caution, potentially lead to situations that 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.

Keeping safe during floods: Expert advice 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:

Seek higher ground:

If you’re in a flood-prone area, or if you’re camping in a low-lying spot, move to higher ground as a first step.

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.

Avoid basements and submerged areas:

Steer clear of basements or rooms where water has submerged electrical outlets or cords. This helps prevent electrical accidents.

Swift evacuation for your safety:

If you notice sparks or hear buzzing, crackling, snapping, or popping noises, evacuate immediately. Avoid any water that may be charged with electricity.

Refrain from walking in floodwaters:

Never attempt to walk through floodwaters, even if they appear shallow. Just 6 inches of fast-moving water can forcefully sweep 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.

During heavy rainfall, there is a risk of flooding, especially in low-lying and flood-prone areas. Remember to never drive through water on the road, even if it seems shallow. According to the NWS, as little as 12 inches of rapidly flowing water can carry away most cars. Stay safe by being prepared and informed.

For more local weather alerts, visit our Weather Advisory page