If you have any questions about Harvey or anything related to coastal flooding in general, shoot me an email and I will try to get back to you ASAP. 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. The squalls will likely be separated by periods of multiple hours with no rain. I usually write well-referenced articles, but as Harvey is impacting our area, I do not have time to add references and citations right now to this blog. 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 (AL092017) 17 August – 1 September 2017. WeatherBELL Chief Meteorologist Joe Bastardi on Hurricane Harvey. Hurricane Harvey resulted in elevated water levels along the Texas and western Louisiana coast for several days due to storm surge and excessive rainfall runoff as the storm lingered over the region. 8-25-2017 Port Aransas, Tx Surge flooding roads, high winds and massive breakers Hurricane Harvey - … The National Oceanic and Atmospheric Administration estimated total damage at $125 billion, with a 90% confidence interval of $90–160 billion. September 2017 has accumulated the most cyclone energy of any month on record in the Atlantic. The highest maximum storm tides were observed at the Aransas Wildlife Refuge, where the storm surge levels were more than 12 feet above ground level. The winds from these storms are often the main focus of people's attention, and with good reason. storm surges Florida. Harvey not only affected the coastal region with wind speeds that peaked near 50 m/s, it also dumped ~7.6 × 10 10 m 3 of rain over 3 days. Here are the areas that concern me most: The Great Hurricane of 1898 generated a 16-foot storm surge at Brunswick, Ga., completely devastating the harbor. Hurricane Harvey (2017) caused extensive flooding in coastal Texas due to a combination of storm surge and heavy precipitation. 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. As Harvey is forecast to drift for several days, a change in the center of circulation by even a few miles can change the wind direction from offshore to onshore in places. The 1947 Hurricane smashed the coastline of Palm Beach County with a powerful storm surge. Laura has killed at least 23 people after lashing Haiti and the Dominican Republic. Storm Surge. ... 2008 (Ike) and 2017 (Harvey). Inland flooding and hurricane-force winds are expected in some areas. As I told a reporter on the phone yesterday, our foremost problems are public perception and lack of awareness. In just 57 hours, Harvey intensified from a regenerated tropical depression into a Category 4 hurricane, making landfall northeast of Corpus Christi Texas on August 25 with wind speeds of 130 mph. Harvey meandered around southern Texas for days as a weakening hurricane and tropical storm. Harvey is a classic example of why we need to know our hurricane history. By Nina Godlewski @NinaGodlewski 08/25/17 AT 3:41 PM. Depending on Harvey’s track, onshore winds and rainfall may increase in this area from late Sunday through Tuesday, which would increase flood potential. Here's why. Harvey is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Harvey is a classic example of why we need to know our hurricane history. Water levels in places like Rockport, Texas have been highly variable. Heavy rainfall can compound the effects of a storm surge, dumping more water on top of the ocean surge. Storm surge is an inundating flow of water pushed up onto land, due to the force of the surface winds blowing over that water. Hurricane #Harvey continues to pound #PortLavaca #Texas with wind and storm surge. He is the founder and president of Marine Weather and Climate. The last substantial storm surge in this region occurred in 1921, when a hurricane generated a 10.5-foot surge. However, this is just the beginning of a saga that could last the better part of a week. Some additional strengthening is possible before Harvey makes landfall overnight. In Miami Beach, Florida, a student died when ... Harvey was the earliest eighth named storm on record before being surpassed by Hurricane Hanna during the 2020 Atlantic hurricane season. Harvey dumped more rain on the United States than any previous hurricane. The official National Hurricane Center track and intensity forecast depicts Harvey tracking towards the Texas coast by Friday evening, and then stalling for, The destructive force of storm surge was on clear display this weekend as Hurricane Matthew ripped across the Caribbean, Florida and the Carolinas. Areas closest to Harvey’s circulation center may see rapid water level rises and falls as wind direction changes from offshore to onshore and vice versa. Clearly, Harvey had a catastrophic amount of precipitation and its impacts were much larger than the purely oceanic-driven storm surge in this storm. Harvey has struck an area that has observed multiple major hurricane strikes and storm surge events in the past century. The red line in this graph is observed water level and the blue line is predicted water level, based on astronomical tides. Powerful winds aren’t the only deadly force during a hurricane. Hurricane Harvey reached Category 4 when it made landfall on the coast of Texas in late August 2017. Hurricanes Frances and Jeanne, both in 2004, made landfall just north of this region, keeping it on the weaker side and forcing the strongest winds to blow offshore. Time series of storm tide (surge plus tide) levels at Port Lavaca above mean sea level from 1900-2017. Credit: NOAA/NHC, Sources: U.S. National Hurricane Center | NOAA | NOAA Ocean Today, © 2020 The Weather Network Pelmorex Weather Networks. A NOAA Tides and Currents gauge at Port Lavaca, Texas, reported an observed storm tide level of 7.0 feet above Mean Sea Level (MSL) at 3:48AM Central Time. The National Weather Service warned Wednesday of a potentially “unsurvivable storm surge” up to 15-20 feet in some areas. The 2017 Atlantic hurricane season is one for the history books. 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