On Tuesday at 4:07 am a coastal flood advisory was issued by the National Weather Service valid for Wednesday between midnight and 5 am for Eastern Montgomery and Lower Bucks as well as Philadelphia County.
The weather service says, “Up to one foot of flooding above ground level expected in low-lying areas near shorelines and tidal waterways.”
“At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible,” says the weather service. “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.”
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 flooding 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.
Weather service flood safety guidelines: Weathering the storm
Floods can pose a significant threat, especially if you live in a flood-prone area or find yourself camping in a low-lying region. To ensure your safety, the weather service offers essential flood safety guidelines:
1. 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.
2. Follow evacuation orders:
- When local authorities issue an evacuation order, promptly comply. Before leaving, secure your home by locking it.
3. Disconnect utilities and appliances:
- If time allows, disconnect your utilities and appliances. This reduces the risk of electrical hazards during flooding.
4. Steer clearing of flooded basements and submerged areas:
- Avoid basements or rooms submerged in water with electrical outlets or cords. Preventing electrical accidents is crucial.
5. 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.
6. Stay away from 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.
7. 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 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 weather service. Prioritize your safety by staying informed and prepared.
Advance Local Weather Alerts is a service provided by United Robots, which uses machine learning to compile the latest data from the National Weather Service.
