From a storm surge perspective, this event may seem exceptional along the central Texas coast, but in the bigger picture it may end up more like a 20-25 year storm surge event (surge level we should expect every 20-25 years on average). Friday, August 25, 2017, 4:03 PM - Hurricane Harvey is packing powerful winds that will blast the Texas coastline over the next several days, but the biggest threat to life will come from the storm surge. The total destruction that Harvey will bring is far from clear. This photograph of the Seacrest Hotel in Delray Beach was taken at the northwest corner of Ocean Blvd. Hurricane Carla (1961) made landfall in the Port Lavaca region, but generated several powerful tornadoes that caused substantial damage in Galveston. WeatherBELL Chief Meteorologist Joe Bastardi on Hurricane Harvey. Part of the danger of the storm surge is the waves, which can be quite strong during a storm, riding along the top of the storm surge to cause significant damage as they crash into buildings, vehicles and whatever else is in the way, as they make their way towards the new inland shoreline produced by the surge. A scientific literature review provides maximum water levels for 28 storm surge events at Miami since 1880. Health scientists with Tarrant County Public Health worked with CDC to investigate the medical surge associated with Hurricane Harvey in Dallas–Fort Worth (DFW) metroplex EDs. Storm surge from a hurricane approaching shore. That’s more than any other natural disaster in U.S. history except Hurricane Katrina . 'Unsurvivable' storm surge feared as Hurricane Laura strengthens to Cat 4. Depending on Harvey’s track, onshore winds and rainfall may increase in this area from late Sunday through Tuesday, which would increase flood potential. The scope of flooding in areas with low National Flood Insurance Program(NFIP) participation lends to the large uncertainty in the dam… In addition to the wind-driven storm surge, the low pressure towards the center of these storms can produce a secondary, pressure-driven surge, as the air pressure towards the edges of the storm pushes down harder on the water there than near the storm's core. You can reject cookies by changing your browser settings. Harvey became a hurricane later on August 24, and by that night a well-defined eye appeared in infrared satellite pictures. Storm surge levels closest to Harvey’s center of circulation will be highly variable, depending upon wind direction. Additionally, depending on the timing of the surge, it can combine with high tide to produce a storm tide, which can result in even worse flooding than the storm surge alone. As Harvey is forecast to stall near the central Texas coast, and the circulation around hurricanes is counterclockwise, locations like Freeport, Galveston, Galveston Bay and Bolivar Peninsula will observe days of strong onshore winds. Friday, August 25, 2017, 4:03 PM - Hurricane Harvey is packing powerful winds that will blast the Texas coastline over the next several days, but the biggest threat to life will come from the storm surge. He likened the storm's plodding pace to that of Hurricane Harvey, which inundated Houston in 2017. Harvey meandered around southern Texas for days as a weakening hurricane and tropical storm. I hope I can access email on my phone and you can contact me at hal@marineweatherandclimate.com. Hurricane-force winds extend outward up to 35 miles (55 km) from the center, and tropical-storm-force winds extend outward up to 140 miles (220 km). Hurricane Harvey's intensification and impacts. Here's why. 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