Het KNMI waarschuwt voor zware windstoten, waarvan de eerste ons land in de loop van dinsdagavond bereiken. Each level needs to be stacked on top each other vertically in order for the storm to maintain strength or intensify. Laura’s eye was clearly visible, the storm was well rounded, and the eye was surrounded by powerful thunderstorms. The estimated minimum central pressure is 1006 millibars. The NASA / JAXA GPM Core Observatory satellite flew over Hurricane Laura shortly before it made landfall at 10:00pm CT on Wednesday, August 26th, then again at 7:42am CT on Thursday, August 27th when it was over land, capturing data on precipitation within the storm. Johnson Bayou, LA to Rockefeller Wildlife Refuge including Calcasieu Lake is between 15 to 20 feet. The photos showed the extent of this large hurricane. All of those areas were generating heavy rain, but within a couple of hours, they diminished. Less than 2 hours later, infrared data showed those cloud tops were cooling, meaning they dropped in altitude. Confidence is therefore fairly high that Hernan has persisted as a tropical cyclone, at least through 12 a.m. EDT (0400 UTC) this morning.” WindSat is the primary instrument aboard the Coriolis mission satellite, which is jointly sponsored by the U.S. Dept. Laura made landfall as a powerful Category 4 hurricane along the Louisiana coast. Laura made landfall as strong category 4 hurricane near Cameron, Louisiana shortly after midnight on August 27, 2020, bringing extreme rainfall, storm surge, and winds up to 150 mph. That is about 480 miles (770 km) southwest of the southern tip of Baja California, Mexico. Surrounding that area were cloud top temperatures were as cold as minus 70 degrees Fahrenheit (minus 56.6. degrees Celsius). Een zomerstorm is minder zwaar dan een herfst- of winterstorm, omdat de temperatuurverschillen nog niet zo groot zijn. A few tornadoes remain possible, mainly over parts of Mississippi, Tennessee and southern Kentucky. Het is bewolkt. Will Lang, hoofd weerdienst bij Met Office, kijkt ernaar uit om opnieuw nauw samen te werken met het KNMI en Met Éireann. We worden wakker van het verkeer op de A348. Wind shear occurs when winds at different levels of the atmosphere push against the rotating cylinder of winds, weakening the rotation by pushing it apart at different levels. The latest minimum central pressure estimated from reconnaissance aircraft data is 952 millibars. 10/13/2020 4:49 AM Laura’s cloud cover extends from Houston, Texas east to just west of New Orleans, Louisiana. As it moved inland heading north over western Louisiana, Laura was overflown by the NASA / JAXA GPM Core Observatory satellite at 10:00 p.m. CDT on Wednesday August 26th, shortly before the storm made landfall, then again at 8:11 a.m. CDT on Thursday August 27th, about 7 hours after making landfall, as shown in the animation below. NOAA’s National Hurricane Center (NHC) reported at 2 p.m. EDT (1800 UTC), the eye of Hurricane Laura was located near latitude 27.3 degrees north and longitude 92.5 degrees west. At 5 a.m. EDT on Aug. 27, the National Hurricane Center noted, “Although Hernan is a sheared tropical cyclone, another strong burst of deep convection with cloud tops of minus 83 to minus 86 degrees Celsius has developed near and south through west of the center.” NASA research has shown that cloud tops that cold have the ability to generate heavy rainfall. Winds gusting at up to gale force 11 hit parts of the Dutch coast on Sunday afternoon as storm Ciara moved in from the Atlantic. At 8 a.m. EDT (1200 UTC), the center of Hurricane Laura was located near latitude 31.2 degrees north and longitude 93.3 degrees west. National Hurricane Center (NHC) Senior Hurricane Specialist John Cangialosi and Hurricane Model Diagnostician and Meteorologist David Zelinsky noted, “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.”. Sept. 18, 2020, will be known in history for a frenetic burst of three Atlantic named storm formations in just six hours. The storm is expected to make landfall in southern South Korea and will start to become extra-tropical. Stronger gusts are possible within thunderstorms. Sat 8 Feb 2020 07.36 EST First published on Fri 7 Feb 2020 12.03 EST. Additional weakening is forecast, and Hernan is expected to degenerate to a remnant low-pressure area tonight. Laura’s Status on Aug. 27 at 8 a.m. EDT Instead, what the IMERG algorithm does is “morph” high-quality satellite observations along the direction of the steering winds to deliver information about rain at times and places where such satellite overflights did not occur. The new season's storm names were released on 1 September 2020. A Storm Surge Warning is in effect for High Island, Texas to the mouth of the Mississippi River. De storm die na dit weekend voor onstuimig weer in Nederland gaat zorgen, heeft de naam Ciara gekregen. Thank you! Hurricanes/tropical cyclones are the most powerful weather events on Earth. De storm bereikte in de loop van dinsdagochtend Ierland. Based on decreasing satellite intensity estimates, Hernan was downgraded to a tropical depression. Little change in strength is forecast during the next couple of days. NHC said, “The combination of a dangerous storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline. Maysak’s center is expected to pass just west of Okinawa within 24 hours. Het is de eerste storm in Nederland sinds het KNMI … A northeastward to east-northeastward motion is expected tonight and Friday. Wind Nu de zomer op zijn einde loopt, nemen de temperatuurverschillen tussen de polen en de tropen toe. 16 NUjij-reacties reacties. Hij raadt mensen aan niet met een lege caravan of aanhangwagen te gaan rijden. Strongest storms with cloud top temperatures as cold as minus 70 degrees Fahrenheit (minus 56.6. degrees Celsius) were west of the center and were dropping large amounts of rain. By the weekend, Hernan is expected to absorb nearby Tropical Storm Iselle. Some had cloud top temperatures as cold as minus 70 degrees Fahrenheit (minus 56.6. degrees Celsius) and were dropping large amounts of rain. Wanneer de radiant in het zenit zou staan, zouden er van deze zwerm naar verwachting gemiddeld zo'n 85 meteoren per uur vallen. IMERG surface rainfall accumulations were compiled for the period 22 to 27 August 2020 for the southeastern U.S., Gulf of Mexico, the northwest Caribbean and adjacent regions. For updated and detailed forecasts, visit: www.nhc.noaa.gov, National Aeronautics and Space Administration, https://disasters.nasa.gov/hurricane-laura-2020/terra-misr-used-visualize-cloud-top-heights-hurricane-laura-3d, GPM Flies Over Cat. The KNMI issued a code orange weather warning for the entire country and the ANWB motoring organisation warned drivers not to use the roads unless necessary. NASA’s Goddard Space Flight Center. 25 augustus 2020 20:39 25-08-20 20 ... Het KNMI waarschuwde dinsdag al met code geel voor zware windstoten aan de kust van Nederland. The near-real-time rain estimate comes from the NASA’s Integrated Multi-satellitE Retrievals for GPM (IMERG) algorithm, which combines observations from a fleet of satellites, in near real time, to provide near-global estimates of precipitation every 30 minutes. A University of Florida observing tower near Lake Charles recently reported a sustained wind of 86 mph (138 kph) with a gust to 112 mph (180 kph). Typhoon Maysak continued to move through the Northwestern Pacific and was closing in on Japan’s Okinawa Island when NASA’s Terra satellite obtained a visible image of the storm. ... Het fijnmazige Harmonie weermodel (afgesteld op het weer in Nederland en de nabije omgeving) komt ook met haar prognose voor morgen. Rockefeller Wildlife Refuge to Intracoastal City, LA between 10 and 15 feet. Reports from an Air Force Reserve Hurricane Hunter aircraft indicate that maximum sustained winds have increased to near 140 mph (220 kph) with higher gusts. Over the next 36 hours, as Laura gradually turned northward around the western edge of a high pressure ridge across Florida and headed for the northern Gulf Coast, it underwent a rapid deepening cycle. IMERG fills in the “blanks” between weather observation stations. Maximum sustained winds have increased to near 60 mph (95 kph) with higher gusts. NASA research has determined that cloud top temperatures as cold as or colder than minus 63 degrees Fahrenheit (minus 52.7 degrees Celsius) has the capability to generate heavy rainfall. The ridge of high pressure north of Laura that was steering the storm expanded westward, keeping the center well over water and further away from the south coast of Cuba. Laura too originated from an easterly wave but began as TD #13 well out into the central tropical Atlantic on the night of August 19. GPM overpass visualization by Alex Kekesi (NASA Goddard Scientific Visualization Studio) At 11 a.m. EDT (1500 UTC), the center of Tropical Storm Maysak was located near latitude 16.3 degrees north and longitude 129.5 degrees east. So far, 22 deaths are being blamed on Laura in the US, 14 of those in Louisiana. By 5 p.m. EDT, it strengthened into a tropical storm and was re-named Iselle. NASA’s Goddard Space Flight Center. A Storm Surge Warning means there is a danger of life-threatening inundation, from rising water moving inland from the coastline, during the next 36 hours in the indicated locations. Animating Hurricane Laura’s Path to Landfall. In de daaropvolgende nacht, tussen 4 en 5 uur, bereikt de windkracht zijn maximum, zegt Sluijter. Iselle is expected to begin weakening late this weekend. This rainfall will continue to contribute to isolated flash and urban flooding, and overflow of small streams and creeks across the aforementioned regions. 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