Locations that experience eyewall winds, areas within 15 miles or so of where the center tracks, could see destructive gusts over 130 mph, especially right along the coast. “This is a time for all of us to be praying for the best, while we’re prepared for the worst. The NASA Earth Applied Sciences Disasters Program has activated in support of Hurricane Laura, and is working to determine what NASA resources and capabilities may be available to support response and recovery for this event. The warnings, which urge similar protective actions as tornado warnings, also trigger wireless emergency alerts to cellphones. Let’s wait for the official assessment from the National Weather Service, but it is certainly a great discussion point (and hopefully saved lives). Dr. J. Marshall Shepherd, a leading international expert in weather and climate, was the 2013 President of American Meteorological Society (AMS) and is Director of the. The National Hurricane Center declared at 2 a.m. Eastern time (1 a.m. Central time) that Laura came ashore near Cameron, La., packing 150 mph maximum sustained winds. “At the time of landfall, Laura was a ferocious looking hurricane with a clear circular eye, an intense eyewall, and tightly-coiled surrounding spiral bands,” the National Weather Service said in an update on the storm early Thursday. Even before the most destructive part of Hurricane Laura arrived in Lake Charles, winds were starting to gust over 70 mph amid blinding sheets of rain. “Extremely dangerous Laura has the signature of a classic hurricane on satellite images, with a well-defined eye surrounded by very deep convection,” forecasters wrote. Hurricane Laura slammed ashore in southwestern coastal Louisiana early Thursday with a ferocity that this region has never previously endured. The surge threat prompted a mandatory evacuation for Lake Charles, La., where much of the city of 78,000 may flood. The National Weather Service reported sustained winds of 85 mph in Lake Charles around 1:20 a.m. wow.” While there is no official confirmation of this observation, it is worth exploring. This same location also recorded a 127 mph wind gust. The northern eyewall of Hurricane Laura reached sparsely populated Cameron Parish, La., at about midnight Thursday, bringing gusts of wind as strong as 115 mph and a “catastrophic storm surge” that threatened to put most of the region under several feet of water, according to the National Weather Service. Because of its intensity and forward movement, it was still classified as a hurricane well inland at the time of writing. It was centered 75 miles south of Lake Charles, La., moving northwest at 15 mph. The physics and underlying processes associated with intensity changes are not as well-represented, but a newer generation of models like HWRF shows potential for bridging this critical gap. He also pointed out, “With the slight exception of two forecasts overnight Sunday into Monday that brought Laura into central LA, every subsequent forecast for landfall location had very small forecast error.”. As the eyewall crossed Cameron, La., winds were sustained at 88 mph with gusts to 115 mph. On Wednesday, Louisiana Gov. © 2020 Forbes Media LLC. and PhD in physical meteorology from Florida State University. The damage Hurricane Laura is expected to wreak will probably be calamitous for Cameron Parish. The Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the NOAA-20 satellite acquired this image of Hurricane Laura at 2:50 a.m. CT on August 27, 2020, about two hours after the storm made landfall. “Take cover now!” stated the warning. He closed by noting, “There is some year-to-year variation, but the trend lines point toward steady improvement at all forecast time steps.” The forecasts on Sunday morning, as Laura crossed the Dominican Republic and Haiti, were the first to shift west to a landfall location near the Texas/Louisiana border according to Professor Cordeira. The “enveloped eyewall lightning” signature is an indicator to meteorologists of a storm that is strengthening. Heavy rain was predicted to be widespread across the west-central Gulf Coast with five to 10 inches falling over a broad area, and locally up to 18 inches, leading to flash flooding. “They’re thinking Cameron parish is going to look like an extension of the Gulf of Mexico for a couple of days,” Edwards said Wednesday. The historically powerful cyclone made landfall near Cameron, La., around 1 a.m. local time. 4 Hurricane Laura Twice As It Makes Landfall in Louisiana, https://gpm.nasa.gov/applications/weather/gpm-flies-over-cat-4-hurricane-laura-twice-it-makes-landfall-louisiana. In case you are having trouble deciphering the graphic, let’s explore the yellow line at the endpoint (2019). Clouds are shown in infrared using brightness temperature data, which is useful for distinguishing cooler cloud structures from the warmer surface below. Dr. J. Marshall Shepherd, a leading international expert in weather and climate, was the 2013 President of American Meteorological Society (AMS) and is Director of the University of Georgia’s (UGA) Atmospheric Sciences Program. For a brief time, lightning discharges were detected by satellite and ground-based instruments along the entire periphery of the eyewall, which is the area of towering thunderstorms surrounding the eye. The storm’s most extreme winds should arrive just after 2 a.m. (1 a.m. local time). Speaking of models, there are early indications that the American GFS model and some of the regional models like H-WRF performed very well with Hurricane Laura. The system produced disorganized convection over a broad area, and steadily consolidated. … Cordeira, a meteorology professor at Plymouth State University, told me by email, “I downloaded the forecast track/best track shapefiles from NHC and plotted them in QGIS....The ~1 km was derived from an approx. Laura was beginning to unleash a swath of destructive winds when it made landfall, with “catastrophic damage” expected, according to the National Hurricane Center, along with widespread power outages. Be safe tonight.”. The latest: Hurricane Laura has made landfall near Cameron, Louisiana, as a Category 4 storm. Even more people decided not to return to the parish after that storm. Hurricane-force winds are expected well inland from the point of landfall, with a lengthy corridor of wind damage comparable to a tornado strike stretching northward by about 100 miles. Have a question about our comment policies? Those in an eyewall wind warning should take care to shelter in an interior, low location that is not susceptible to storm surge flooding. Officials in coastal states most affected by the hurricane season have had months to prepare for the summer’s storms. In other words, the National Hurricane Center got the exact location of landfall correct to within less than a mile according to his analysis. Louisiana Gov. Greg Abbott (R) announced shelters and buses would be stocked with hand sanitizer and face masks and shelters would be spaced appropriately. “Isolated totals of 7-9 [inches] and flash flooding, significant in places, is likely” through 5 a.m., the Weather Service wrote in a special bulletin. Most forecasters clearly understood the potential for Hurricane Laura to rapidly intensify and it did. The National Weather Service said the hurricane was moving north at about 15 mph. The biggest potential killer, and biggest story, in this storm will be the surge, given the topography of the area the storm is hitting, and the unprecedented surge heights forecast in this region. Cameron is the second smallest parish in the state by population, in part because the southwest region has a long history of being decimated by hurricanes. Laura’s first major and potent rain band has moved ashore in southern Louisiana, where winds are howling and a tornado warning covers a lengthy section of coastline. Just three years after Rita, Hurricane Ike walloped the region, flooding the coastline.

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