-Feed National Weather Service -YouTube -Weather Radio -Houston Intercontinental The squalls will likely be separated by periods of multiple hours with no rain. On the morning of the 23rd, Harvey was upgraded again to tropical depression as the Bay of Campeche and the Western Gulf of Mexico had very warm waters. When it made landfall hours earlier, Harvey easily was the strongest hurricane to hit the United States since Charley in 2004 and the first Category 3 or greater storm … Questions? -Granger (Central Texas) Additionally, a storm surge watch became in effect from Port Mansfield to High Island. 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. This resulted in a rapid development of flash flooding between 10:00 p.m. and 1:00 a.m. as tremendous rainfall rates occurred across much of Harris County. Storm surge is a very complex phenomenon because it is sensitive to the slightest changes in storm intensity, forward speed, size (radius of maximum winds-RMW), angle of approach to the coast, central pressure (minimal contribution in comparison to the wind), and the shape and characteristics of coastal features such as … Here is the Post-Harvey Report Provides Inundation Maps and Flood Details from the USGS. 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. Both were large, powerful storms that hit in vulnerable locations. Between 4.62 and 56 inches fell across the area with the lowest rainfall totals falling in the Crockett area and the highest rainfall totals falling in the Friendswood area. Hurricane Harvey threatens to generate a prolonged storm surge event along the central and upper Texas coast. The last hurricane to make landfall in the state was Hurricane Ike in 2008. Hurricane Harvey made landfall near Rockport, Texas, as a Category 4 hurricane yesterday evening. ... 2008 (Ike) and 2017 (Harvey). This means the center of circulation has been located, which will improve forecasts. Hurricane Harvey (2017) caused extensive flooding in coastal Texas due to a combination of storm surge and heavy precipitation. -Tides and Currents An estimated 300,000 structures and 500,000 vehicles were damaged or destroyed in Texas alone. That’s more than any other natural disaster in U.S. history except Hurricane Katrina . Time series of storm tide (surge plus tide) levels at Port Lavaca above mean sea level from 1900-2017. I’ve Lived Through Tropical Storms. Many places in Laura’s path, like Port Arthur and Beaumont, Texas, suffered extensive damage when Hurricane Harvey ripped ashore in 2017. Maximum storm surge heights along the western Gulf Coast during Hurricane Harvey. -FloodAware This will be a major problem, as Harvey is forecast to dump 20+ inches of rain across a widespread area over the next week. Harvey has struck an area that has observed multiple major hurricane strikes and storm surge events in the past century. -Fire -FAQ, Rivers/Lakes/Bayous 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. Here is the Service Assessment Report on Hurricane Harvey from DOC/NOAA/NWS. For some in New York, it may have brought back memories of Sandy, another destructive October storm that broke flood records and upended the region. Hours later, the storm tore through much of North Carolina. Like a washer machine on heavy duty cycle. -2020 Hurricane Guide Once we truly understand our risks, widespread support for coastal protection rapidly increase and funding these projects follows. If Harvey tracks northeast after stalling, the threat of strong onshore winds and heavy rainfall will increase in this region. -StormReady Hurricane Harvey (2017) caused extensive flooding in coastal Texas due to a combination of storm surge and heavy precipitation. Over the next 48 hours Harvey would undergo a period of rapid intensification from a tropical depression to a category 4 hurricane. Please Contact Us. However, Harvey’s storm surge level in this area is not as rare as we might believe, and it may come in fifth place for all surges since 1919. “In my 18 years here, I haven’t seen a peak surge where it was measured by an instrument,” said Jamie Rhome, who heads the National Hurricane Center’s storm surge team. He is the founder and president of Marine Weather and Climate. Elsewhere, Katrina's storm surge reached 30 feet. -Local/Regional/National This blog post provides some insights on Harvey’s storm surge and widespread flood threat. The storm’s center was “inching its way inland,” National Hurricane Center forecaster Daniel Brown said Wednesday morning. All NOAA. 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. Strong squalls of rain and wind will occur east of Harvey's circulation center. 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. -National Weather Service -Galveston Beach Patrol (Flag Warning System), FORECASTS Hurricane Harvey started as a tropical wave off the African coast on Sunday, August 13th and tracked westward across the Atlantic and on August 17th become a tropical storm which moved into the Caribbean Sea where Harvey become disorganized. The minimum pressure of Harvey is estimated to be 937 mb, based on a dropsonde measurement of 938 mb with 10 kt of surface wind at 0215 UTC 26 August . -Houston/Galveston Additionally, you have many other processes affecting water levels during a storm or hurricane. Hurricane Harvey threatens to generate a prolonged storm surge event along the central and upper Texas coast. Harvey is forecast to make landfall as a major hurricane in this region with maximum sustained wind speeds exceeding 110 mph and a storm surge of 6-12 feet. 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. The storm surge from Hurricane Ike floods a public park on the waterfront September 12, 2008 in Texas City, Texas. The Flood Event Viewer or FEV was created by the USGS to provide public access to coordinated, short snippets (lengths) of coastal and riverine water-level and highwater mark records corresponding to major storms or other short-term events. The maximum potential storm surge for a particular location depends on a number of different factors. The highest storm surge found due to Hurricane Harvey was an 8.4 ft surge near Palacios. -Publications/Brochures Here are Hurricane Harvey websites from National Weather Service Offices in Corpus Christi and Lake Charles. Widespread 2-4' surge has been observed from Port O'Connor to Galveston Bay. Of these, 60 points (approximately 90%) reached flood stage. UPDATE (August 25, 10:15 PM EST): Hurricane Harvey has become a Category 4 storm with sustained winds of over 130 miles per hour.The storm is due to make landfall near the town of Rockport, Texas, sometime tonight. It caused $125 billion in damage according to the National Hurricane Center. Here is the final report from Harris County on Hurricane Harvey - Storm and Flood Information. -Drought, History Upon the NHC resuming advisories for Harvey at 15:00 UTC on August 23, a hurricane watch was issued in Texas from Port Mansfield to San Luis Pass, while a tropical storm watch was posted from Port Mansfield south to the mouth of the Rio Grande and from San Luis Pass to High Island.Additionally, a storm surge watch became in effect from Port Mansfield to High Island. Stay safe, much love, and thanks for reading! Houston/Galveston, TX1353 FM 646 Suite 202Dickinson, TX 77539281-337-5074Comments? Harvey’s highest storm surge occurred east of Rockport. -Public Information Statement Weakening is then expected over the weekend while the center moves inland over Texas. Forecast rainfall totals from Hurricane Havey through Thursday. Surge could be recorded as far as 30 miles inland. When it made landfall hours earlier, Harvey easily was the strongest hurricane to hit the United States since Charley in 2004 and the first Category 3 or greater storm … Harvey has generated the highest storm surge at Port Lavaca since Hurricane Carla (1961). -Climate Summaries The maximum recorded water level from a NOAA Tides and Currents gauge was observed at Port Lavaca, where surge levels exceeded 6 ft. We should expect a long-term, severe storm surge as far east as Matagorda Bay, where strong onshore winds are continuing to push a substantial storm surge into places like Port Lavaca. The city has observed seven storm surges that have exceeded 7.9 feet in the past 102 years, or about one surge every 15 years over that threshold. -Corpus Christi Even a modest storm surge in this area could exacerbate flooding, as a prolonged storm surge of 2-4 feet in Galveston Bay will impede the drainage of torrential rainfall. -Frequent Products Data from three 11-day periods before, during, and after the storm (Figure 2) were visualized to characterize magnitude, duration, and spatial variation of medical surge associated with Hurricane Harvey. -Historical Tracks To the east of the storm center, onshore winds will keep storm surge levels elevated and impede the drainage of heavy rainfall. pic.twitter.com/XIxFZsaKUO, — Rob Marciano (@RobMarciano) August 26, 2017. This Is Why Irma Worries Me, Harvey’s Rain and Surge Flooding Could be Catastrophic for Houston and Galveston, Tropical Depression Harvey Is Threatening Texas with Major Flooding, Sandy’s Surge Was Extreme. As a tropical storm, Harvey dropped 40-61 inches of rainfall in southeast Texas and southwest Louisiana. The last hurricane to make landfall in the state was Hurricane Ike in 2008. Long-term records for permanent USGS streamgages are available at the USGS National Water Information System (NWIS). Hurricane Harvey is currently striking the fourth region that concerns me. -Tropical Storm Imelda The 2017 Atlantic hurricane season is one for the history books. 5 Day Forecasted Rainfall Totals as of 5AM 8/26. For the most frequent updates, check out the U-Surge Hurricane Harvey page. As the center of Harvey slowly moved east-southeast and back offshore heavy rainfall continued to spread through much of the 29th and the 30th exacerbating the ongoing widespread and devastating flooding. -Preparedness Meetings Harvey meandered around southern Texas for days as a weakening hurricane and tropical storm. After moving offshore, Harvey made a third landfall just west of Cameron, Louisiana on the morning of the 30th and brought more heavy rainfall to the Northern Gulf States. Harvey is forecast to make landfall as a major hurricane in this region with maximum sustained wind speeds exceeding 110 mph and a storm surge of 6-12 feet. US Dept of Commerce -Storm Prediction Center -CoCoRaHS -Satellite Farther east from the center of circulation, around the Houston-Galveston-Freeport area, expect persistent onshore winds with strong squalls today. But forecasters expect that to change in the coming weeks as the peak of the hurricane season arrives. More than 118,000 homes in the Houston area are potentially at risk of storm surge damage should Hurricane Harvey reach Category 3, according to a report by CoreLogic. The hurricane centre said: "Life-threatening and devastating flooding expected near the coast due to heavy rainfall and storm surge." The area south of Charleston concerns me the most, because they were on the “weak” side of Hurricane Hugo (1989) and did not experience Hugo’s massive surge. -River Forecast Centers -Austin/San Antonio Irma maintained the highest category 5 longer than any storm anywhere in the world. -Lower Colorado River Authority Harvey has now re-formed into a tropical depression off the northwest coast of the Yucatan Peninsula. The widespread and catastrophic effects of Hurricane Harvey resulted in one of the costliest natural disasters in United States history. Please select one of the following: -Galveston Beach Patrol (Flag Warning System), National Oceanic and Atmospheric Administration, GOES 16 IR Satellite as Category 4 Hurricane Harvey makes landfall, 5 Day Rainfall Total based on rivers and bayous (courtesy of the West Gulf River Forecast Center), Catastrophic flooding as seen on one road near Houston on 8/28, GOES 16 IR Satellite as Category 4 Hurricane Harvey Makes Landfall, GOES 16 Visible Satellite as Category 4 Hurricane Harvey Makes Landfall via NWS Tallahassee, GOES 16 Daytime Composite on 8/31 Showing River and Lake Expansions, NWS HGX Radar Showing Heavy Rain Falling Over the Area along with Active Warnings @ 4:07AM on 8/27/17, GOES 16 Visible Satellite Red Band on 8/25 at 4 PM, 5 Day Rainfall Totals within Rivers & Bayous Courtesy of West Gulf River Forecast Center, Preliminary Crest Table for Record Crests of River Forecast Points, River & Bayou Measuring Points as of 8/27 at 5AM, EF 0 Flipped a Trailer in Matagorda County, Thunderstorm Wind Damage on a Home in Jackson County, Colorado River Flooding in Matagorda County, Lake Houston Spillway on 8/30 via Jeff Linder, Harris County Sheriff Office Texas Air Support Aerial View on 8/30, I-10 at Jefferson/Chambers County Line via Dade Phelan, Flooded Homes near Lake Houston on 8/31 via Jeff Linder, Beltway 8 at I-10 near Westheimer on 9/2 via Harris County Toll Road Authority, Storm Surge Remnants from 8 ft Surge in Jackson County. Here are Flood Damage Assessment Images from the National Geodetic Survey (NGS). UPDATE (August 25, 10:15 PM EST): Hurricane Harvey has become a Category 4 storm with sustained winds of over 130 miles per hour.The storm is due to make landfall near the town of Rockport, Texas, sometime tonight. Many agencies are working on developing a measure of water level that includes all these processes. The highest storm surge found due to Hurricane Harvey was an 8.4 ft surge near Palacios. A strong rainband developed over Fort Bend and Brazoria Counties during the evening hours of the 26th and spread into Harris County and slowed while training from south to north. Hurricane Andrew (1992) was a powerful but geographically compact hurricane the made landfall south of Miami and did not generate substantial surge in Fort Lauderdale or Palm Beach. Storm surges are one of the greatest threats to life during a hurricane, and Texas is about to be battered with the full might of Hurricane Harvey. As a tropical storm, Harvey dropped 40-61 inches of rainfall in southeast Texas and southwest Louisiana. The scope of flooding in areas with low National Flood Insurance Program(NFIP) participation lends to the large uncertainty in the dam… Only around 10 percent of the river forecast points in southeast Texas remained below flood stage due to the event, and approximately 46 percent of the river forecast points reached new record levels. 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. Hurricane Carla (1961) made landfall in the Port Lavaca region, but generated several powerful tornadoes that caused substantial damage in Galveston. Surge could be recorded as far as 30 miles inland. Galveston Bay area received 1 to 4 ft rises. The red line in this graph is observed water level and the blue line is predicted water level, based on astronomical tides. -Rainfall Reports -Aviation This area is setup for a massive storm surge event with an astronomical impact because the bay is highly developed, with relatively minor flood protection. Freeport has a 3.5 ft storm surge. -Weather Prediction Center The total destruction that Harvey will bring is far from clear. Galveston Bay area received 1 to 4 ft rises. NWS ... which can be used to predict storm surge. -Evacuation Routes Many places in Laura’s path, like Port Arthur and Beaumont, Texas, suffered extensive damage when Hurricane Harvey ripped ashore in 2017. The storm’s strong winds extended far inland and storm surge inundated the South Carolina coast from Charleston to Myrtle Beach. -Our Office Hurricane Dorian made landfall in the Bahamas on Sunday as a Category 5 storm, pummeling parts of the Great Abaco and Grand Bahama islands with heavy rains, strong winds, and flooding of up to 23 feet of water. Irma maintained the highest category 5 longer than any storm anywhere in the world. Hurricane Laura Savage Storm Surge A car drives under an ominous rain cloud from tropical storm Marco as locals prepare for the arrival of hurricane Laura near Lake Charles, Louisiana. Upon the NHC resuming advisories for Harvey at 15:00 UTC on August 23, a hurricane watch was issued in Texas from Port Mansfield to San Luis Pass, while a tropical storm watch was posted from Port Mansfield south to the mouth of the Rio Grande and from San Luis Pass to High Island. Even before that, Hurricane Rita in 2005 caused $25 billion in damage to the region. -Evacuation ZipZone -Harris County Flood Warning System Harvey is a classic example of why we need to know our hurricane history. On the east side of Harvey, a storm surge up to 12.5 feet affected eastern Aransas, southeastern Refugio, and … -Climatology for SE TX -Local Page. -Beach 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. The estimate also includes gross losses accrued to the National … -Major Events, RADAR Affected areas can expect heavy rains, high winds, and, along the coast, storm surge in the hours and days ahead. Hurricane Laura was barreling towards the coast of the southern US states of Louisiana and Texas on Wednesday as a monster Category 4 storm, prompting warnings of "unsurvivable" storm surge and evacuation orders for hundreds of thousands of Gulf Coast residents. As Harvey approaches Texas, all eyes are on the central coast from around Corpus Christi to Sargent. Tropical Storm Harvey is becoming better organized this morning. -Tropical Even before that, Hurricane Rita in 2005 caused $25 billion in damage to the region. Hurricane Harvey is the first hurricane to hit the Texas coast since 2008 when Hurricane Ike came through the Houston area -Forecast Discussion “Hurricane” Hal Needham is a storm surge scientist who specializes in data-driven storm surge analysis. There are 67 River Forecast Points in Southeast Texas. -Old Climate Page -Find It Quick, Tropical Storm surge models suggest a surge exceeding 20 feet could strike the bay, if a hurricane tracked in from the southwest and made landfall north of St. Petersburg-Clearwater. It Could Become Normal, ‘Extremely Active’ Hurricane Season Is Forecast as Peak Lies Ahead. Harvey is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. -Hurricane Harvey Hurricane Harvey was a Category 4 storm that hit Texas on August 25, 2017. Stations farther inland experienced some of the highest water levels as freshwater runoff from rainfall added to already elevated heights. Hurricane Katrina’s storm surge drowned New Orleans. Storm surge levels closest to Harvey’s center of circulation will be highly variable, depending upon wind direction. On the west side of Harvey, winds pushed water across Corpus Christi and Copano Bays. The hurricane centre said: "Life-threatening and devastating flooding expected near the coast due to heavy rainfall and storm surge." and Atlantic Ave. -Aviation Weather Center Prolonged onshore winds even below tropical storm force could elevate water in places like Galveston Bay by several feet for multiple days. -Brazos River Authority, CLIMATE Thunder starting again and lights flickering, so I guess that means I’m done here! Such squalls produce torrential rain and sometimes spawn tornadoes. -NCDC/NCEI I hope I can access email on my phone and you can contact me at hal@marineweatherandclimate.com. Hurricane Katrina's 20-foot storm surge in New Orleans breached the city's levees 15 years ago. Photos from Tornadoes and Thunderstorm Winds, CURRENT HAZARDS ... 2008 (Ike) and 2017 (Harvey). This resulted in a storm surge of up to 12 feet that affected Port Aransas and western Aransas county. -more, ADDITIONAL INFO Favorable water temperatures and winds mean there’s “the possibility now, Larger Perspective on Coastal Flooding and Extreme Events, For the most frequent updates, check out the, Four Storm Surges in One Storm: Perspective on Irma’s Wild Coastal Floods, Here’s How You Can Help Hurricane Researchers Map Irma’s Flooding, I’m a Hurricane Researcher. -Web Weather for Kids Sustained surface winds are currently at 45 MPH, but strengthening is forecast. What is a storm surge? -Center Weather Service Units Here is our most recent Post Tropical Cyclone Report. Clearly, Harvey had a catastrophic amount of precipitation and its impacts were much larger than the purely oceanic-driven storm surge in this storm. Tornadoes most often are spawned in these bands well east of the circulation. -Observations Hurricane Harvey likely generated a storm tide of 10-12 feet near Port Lavaca, although the highest observed level reported was 7 feet above mean sea level. -Jefferson County Drainage District 6 'Unsurvivable' storm surge feared as Hurricane Laura strengthens to Cat 4. This photograph of the Seacrest Hotel in Delray Beach was taken at the northwest corner of Ocean Blvd. However, this is just the beginning of a saga that could last the better part of a week. The National Oceanic and Atmospheric Administration estimated total damage at $125 billion, with a 90% confidence interval of $90–160 billion. In the following hydrographs, the yellow line represents bankfull, the orange area is within flood stage, the red area is moderate flood stage, and the purple area represents major flood stage. 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. The morning of the 27th saw additional rain bands continued to develop and produced additional excessive rainfall amounts. Harvey has developed an organized inner core and is in an environment favorable for strengthening. -Severe Stats Powerful winds aren’t the only deadly force during a hurricane. -Air Now Data from the Air Force and NOAA Hurricane Hunter aircraft indicate that the minimum central pressure is falling. The 2017 Atlantic hurricane season is one for the history books. Hurricane Harvey set to batter Texas with up to 12ft wall of water HURRICANE Harvey will slam into the coast of Texas with life-threatening storm surges … -National Here is the Weather Prediction Center's (WPC) Hurricane Harvey Page. -NOAA -Storm Data This area observed large surges in 1928 and 1947 and has had many near misses. -Astronomical Info According to ABC News, Hurricane Harvey's storm surge is expected to raise water levels by 12 feet along the Texas coast, and this elevation in water level may be … Harvey meandered around southern Texas for days as a weakening hurricane and tropical storm. However, this is just the beginning of a saga that could last the better part of a week. -National Hurricane Center Deadly storm surge - the push inwards of abnormally high ocean water above regular tides - could reach 12 feet, the National Hurricane Center warned, calling Harvey life-threatening. As Harvey moved inland, it’s forward motion slowed to near 5mph after landfall and then meandered just north of Victoria, TX by the 26th. While there have been more storms than usual, they’ve all been pretty dinky and short-lived. September 2017 has accumulated the most cyclone energy of any month on record in the Atlantic. -National 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. Several scientists stressed that while the damage of Hurricane Harvey was unrelenting, it was not unexpected. Multiple locations were found. Harvey was then downgraded to a tropical wave which entered the Gulf of Mexico on the 22nd. -Evacuation Planning -Twitter Hurricane #Harvey continues to pound #PortLavaca #Texas with wind and storm surge. 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