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    Flash flood warning active for Orange County Thursday morning
    • March 13, 2025

    Orange County is under a flash flood warning which was released by the National Weather Service on Thursday at 4:30 a.m. The warning is in effect until 7:30 a.m.

    “Flooding of areas in and around the Airport Burn Scar,” according to the NWS San Diego CA. “This is a life threatening situation. Heavy rainfall will cause extensive and severe flash flooding of creeks, streams and ditches in the Airport Burn Scar. Severe debris flows can also be anticipated across roads. Roads and driveways may be washed away in places. If you encounter flood waters, climb to safety.”

    Road closures

    Updates on road closures can be found on CalTrans’ website or mobile app or by calling 800-427-7623.

    Emergency alerts in Southern California

    For “considerable or catastrophic” hazards, emergency alerts will be sent to all enabled mobile phones in the area. To monitor lesser risk, residents are advised to sign up for county alert systems and to monitor agencies’ social media. How to sign up for alerts in your area:

    LA County

    Orange County

    Riverside County

    San Bernardino County

    Where to get sandbags

    If you’re in an area at risk of flooding, sandbags can be one line of defense. County fire departments typically offer a limited supply of free sandbags for residents of their nearby communities. You should bring your own shovel to fill your bags, and be prepared to show proof of residency.

    Sand and sandbags can also be purchased at many home improvement and hardware stores.

    Here are links of locations that might have sandbags in your area:

    Los Angeles County https://dpw. Lacounty. Gov/dsg/sandbags/

    Orange County https://ocfa. Org/AboutUs/Departments/OperationsDirectory/Sandbags. Aspx

    San Bernardino County https://sbcfire. Org/sandbags/

    Riverside County https://rvcfire. Org/resources/fire-stations

    How to fill a sandbag

    Not sure how to fill your sandbags? Watch the how-to video, provided by the City of Seal Beach.

    Understanding the differences between 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 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 does not mean flooding will occur, but it is possible.

    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 reside in a flood-prone region or are camping in low-lying terrain, the first step to safety is relocating to higher ground.

    Follow 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 allows, disconnect your utilities and appliances. This reduces the risk of 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.

    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.

    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:

    Should you become trapped by moving water, reach the highest point possible and dial 911 to contact emergency services.

    During heavy rain, flooding is possible, especially in low-lying and flood-prone areas. Never drive through water on the road, even if it does not appear to be deep. It takes just 12 inches of rushing water to carry away most cars, according to the NWS. Prioritize your safety by staying informed and prepared.

    Driving through downpours: Safety guidelines for wet roads

    When heavy rain sets in, the risk of flooding and hazardous driving conditions rises. Whether it’s prolonged rainfall or rapid runoff, being prepared is essential. Here are some valuable safety tips from the NWS to ensure you stay safe in heavy rain:

    Beware of swollen waterways:

    Avoid parking or walking in close proximity to culverts or drainage ditches, as the swiftly moving water during heavy rain can potentially carry you away.

    Maintain safe driving distances:

    The two-second rule for following distance is your ally in heavy rain. Extend it to four seconds to ensure safe spacing in adverse conditions.

    Slow down and stay cautious:

    On wet roads, slowing down is paramount. Gradually ease off the accelerator and avoid abrupt braking to prevent skidding.

    Choose your lane wisely:

    Stick to the middle lanes to minimize the risk of hydroplaning. Outer lanes are more prone to accumulating water.

    Prioritize visibility:

    Turn on your headlights and be careful of other vehicles to the rear and in blind spot areas as they are especially difficult to see through rain-spattered windows.

    Watch out for slippery roads:

    The first half-hour of rain is when roads are slickest due to a mix of rain, grime, and oil. Exercise heightened caution during this period.

    Keep a safe distance from large vehicles:

    Don’t follow large trucks or buses too closely. The spray created by their large tires reduces your vision. Take care when passing them as well; if you must pass, do so quickly and safely.

    Mind your windshield wipers:

    • Overloaded wiper blades can hinder visibility. If rain severely limits your sight, pull over and wait for conditions to improve. Seek refuge at rest areas or protected spots.
    • If the roadside is your only option, pull off as far as possible, preferably past the end of a guard rail, and wait until the storm passes. Keep your headlights on and turn on emergency flashers to alert other drivers of your position.

    In the face of heavy rain, these precautions can make a significant difference in ensuring your safety on the road. Remember to stay informed about weather conditions and heed guidance from local authorities for a secure journey.

     Orange County Register 

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