On Wednesday at 7:34 p.m. a flash flood warning was issued by the National Weather Service in effect until 9:30 p.m. for Allegheny County.
On Wednesday at 7:34 p.m. a flash flood warning was issued by the National Weather Service in effect until 9:30 p.m. for Allegheny County. "At 7:34 p.m., Doppler radar indicated thunderstorms producing heavy rain across the warned area.
The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 3 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly," says the weather service. "Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas." Locations impacted by the warning include Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Ross Township, McCandless Township, Monroeville, Moon Township, McKeesport, Franklin Park, Gastonville, Shaler Township, Plum, West Mifflin, North Side Pittsburgh, Baldwin, Upper St. Clair, Murrysville, Hampton Township and Scott Township. The weather service states, "Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles."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 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.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.In flood-prone regions or while camping in low-lying areas, understanding and following the weather service flood safety guidelines can be a lifesaver: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.When local authorities issue an evacuation order, promptly comply. Before leaving, secure your home by locking it.If time allows, disconnect your utilities and appliances. This reduces the risk of electrical hazards during flooding.Steer clear of basements or rooms where water has submerged electrical outlets or cords. This helps prevent electrical accidents.If you notice sparks or hear buzzing, crackling, snapping, or popping noises, evacuate immediately. Avoid any water that may be charged with electricity.Never attempt to walk through floodwaters. Even just 6 inches of swiftly moving water can forcefully knock you off your feet.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. Prioritize your safety by staying informed and prepared.When heavy rain pours, the risk of flooding and treacherous roads rises. Here's your guide from the weather service to staying safe during downpours:During heavy rain, avoid parking or walking near culverts or drainage ditches, where swift-moving water can pose a serious risk.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.On wet roads, slowing down is paramount. Gradually ease off the accelerator and avoid abrupt braking to prevent skidding.Stick to the middle lanes on multi-lane roads to minimize the risk of hydroplaning, as water tends to accumulate in outer lanes.Enhance your visibility in heavy rain by activating your headlights. Be particularly vigilant for vehicles in blind spots, as rain-smeared windows can obscure them.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.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.Heavy rain can overload the wiper blades. When visibility is so limited that the edges of the road or other vehicles cannot be seen at a safe distance, it is time to pull over and wait for the rain to ease up. It is best to stop at rest areas or other protected areas. 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. By following these safety measures, you can significantly reduce risks and ensure your well-being when heavy rain pours down. Stay informed about weather conditions and heed advice from local authorities to make your journey safe and sound. 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