Straka provided the nighttime and infrared images. Douglas will gradually weaken, but is still likely to strike Hawaii Sunday. Douglas was moving toward the west near 23 mph (37 km/h), and this general motion is expected to continue until Douglas crosses the International Date Line in about 24 hours. Hurricane Douglas swirls 'uncomfortably close' to Hawaii Honolulu Mayor Kirk Caldwell is urging residents to take the threat from Hurricane Douglas seriously as the storm packing 85 … [10] After successfully mixing out mid-level dry air from the core of the system, Douglas swiftly recuperated. At 5 a.m. EDT (0900 UTC) on July 29/11 p.m. HST on July 28, NOAA’s Central Pacific Hurricane Center (CPHC) in Honolulu, Hawaii noted, “Due to persistent southerly vertical wind shear, Douglas has been devoid of deep convection for nearly 24 hours, and it appears that it will soon be a post-tropical remnant low.”. The high-resolution infrared imagery from Suomi NPPs Visible Infrared Imaging Radiometer Suite (VIIRS) instrument showed a closed circulation and a relatively compact storm. NASA’s Goddard Space Flight Center. Douglas is moving toward the west-southwest near 15 mph (24 kph). [11] This marked the fourth-latest date on record that the first hurricane formed in a season, tying the record of 2004's Hurricane Celia. [36] In Oahu, 13 emergency shelters were opened across the island for those in need. HONOLULU — Hawaii prepared for the onslaught of Hurricane Douglas on Sunday, with predictions of high winds, rain and storm surge. [39] Maui Mayor Mike Victorino stated "You can pretty much see clear skies. A Hurricane Watch is in effect for portions of the Papahanaumokuakea Marine National Monument from French Frigate Shoals to Maro Reef, and a Tropical Storm Watch is in effect for portions of the Papahanaumokuakea Marine National Monument from Maro Reef to Lisianski. Douglas was a Category 4 hurricane on July 24. Hurricane Douglas rapidly intensified into a major hurricane as it moves toward Hawaii By Judson Jones , Derek Van Dam and Virginia Langmaid, CNN … Gradual and steady weakening is expected to continue through the weekend. NASA’s expertise in space and scientific exploration contributes to essential services provided to the American people by other federal agencies, such as hurricane weather forecasting. Hurricanes/tropical cyclones are the most powerful weather events on Earth. However, it remained a major Category 3 storm. Tropical storm conditions are expected from French Frigate Shoals to Maro Reef Tuesday and Tuesday night, with hurricane conditions possible. The strong wind shear that weakened Douglas to a tropical storm early on July 29 has further weakened it to a post-tropical low-pressure area. In a … Although a compact storm, hurricane Douglas in the Eastern Pacific is mighty, as it has become the season’s first major hurricane. Maximum sustained winds are near 65 mph (100 km/h) with higher gusts. Hurricane Douglas passed 35-miles north of Oahu yesterday making Douglas the closest tropical cyclone to pass North of Oahu since Hurricane Dot in 1959. West of the dateline is the western Pacific Ocean. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km). NHC forecaster Andrew Latto noted in the morning discussion, “The system is forecast to remain in a favorable environment for intensification for the next day or so. Status of Tropical Storm Douglas on July 29, 2020. The proclamation authorized the expenditure of state funds for the quick and efficient relief of disaster-related damage, losses and suffering that may result from the storm. It is traveling west northwest at 16 miles an hour. [29] However, strengthening was very short-lived as wind shear quickly displaced deep convection from the storm's circulation. NASA’s Aqua Satellite Shows a Post-tropical System. NOAA’s CPHC said weakening is forecast over the next couple of days, and Douglas is expected to dissipate by Thursday, July 29. Maximum sustained winds are near 130 mph (215 kph) with higher gusts. In those areas, temperatures were as cold as or colder than minus 70 degrees Fahrenheit (minus 56.6 Celsius). It is traveling west northwest at 16 miles an hour. [6], A small cyclone, Douglas continued to take advantage of its favorable environment and continuously intensified. NASA’s Aqua satellite used infrared light to identify strongest storms and coldest cloud top temperatures and found them surrounding the eyewall of the powerful hurricane. NHC forecaster Robbie Berg said, “The low-[wind]shear, warm sea surface temperature environment within which Douglas is moving is a recipe for continued strengthening, potentially at a rapid rate, for the next 48 hours.”. Forecasters noted that Douglas’ overall appearance has changed little over the early morning hours on July 22. Hurricane Douglas skirts Hawaii, gives islands close-call with heavy rain, strong winds, dangerous surf Hurricane Douglas is still packing winds of 90 mph as it passes Hawaii Maximum sustained winds are near 35 mph (55 kph) with higher gusts. Major Hurricane Douglas is the strongest storm on the planet right now and it’s approaching Hawaii.The storm is a category 4 hurricane, packing dangerous winds of 120 mph that extend 25 miles from the center of the storm, according to the Central Pacific Hurricane Center.A major hurricane is any storm ranked category 3 — winds 111 to 129 mph — or stronger. Tropical cyclones are made up of hundreds of … Hurricane Douglas was a strong tropical cyclone that became the closest passing Pacific hurricane to the island of Oahu on record, surpassing the previous record held by Hurricane Dot in 1959. Imagery from NASA’s Terra satellite was used to create an animation showing Douglas’ movement past the Hawaiian Islands. NASA’s Goddard Space Flight Center. By Rob Gutro  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. Cloud top temperatures that cold indicate strong storms with the potential to generate heavy rainfall. The estimated minimum central pressure is 973 millibars. It was packing maximum sustained winds of 115 mph (185 kph), making it a Category 3 hurricane… Andrew Latto, hurricane specialist at NOAA’s National Hurricane Center noted, “Douglas continues to look impressive in satellite images, with a clear eye and symmetric convection in all quadrants.”. Additional strengthening is forecast during the next several days, and Douglas could become a hurricane later today. For updated forecasts, visit: www.nhc.noaa.gov, For past NASA updates on Douglas visit: https://blogs.nasa.gov/hurricanes/tag/douglas-2020/. [25][26][27] Douglas' close pass just 30 mi (48 km) north of Oahu broke the previous record set by Hurricane Dot for closest passing tropical cyclone to the island, whereas Dot passed about 60 mi (97 km) southwest of Oahu. Aqua found several areas of strong storms around the center of Douglas’ circulation and in broken bands of thunderstorms wrapping into that low-level center. Visible imagery of Hurricane Douglas from July 25 to 26, taken from the Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA’s Terra satellite was compiled and made into an animation using NASA’s Worldview application. Interests elsewhere in the Papahanaumokuakea Marine National Monument should monitor the progress of this system. Douglas is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Honolulu (AP) -- Heavy rain and wind gusts battered Maui on Sunday as Hurricane Douglas swirled off the coast of Hawaii and officials urged residents to … East of the Date Line lies the central Pacific Ocean. The strongest thunderstorms that reach high into the atmosphere have the coldest cloud top temperatures. Those storms had cloud top temperatures as cold as minus 50 degrees Fahrenheit (minus 45.5 Celsius). This motion is expected to continue through Saturday, followed by a slight decrease in forward speed and a turn toward the west. Despite the vertical wind shear, Douglas is expected to only slowly weaken as it comes dangerously close to the Hawaiian Islands.”, Hurricane Douglas’ Status on Sunday, July 26, 2020. [1] This tropical wave was located further east and in a slightly more conducive environment than another tropical wave to its east, later to become Tropical Depression Seven-E.[1] With large convective bursts repetitively occurring near the circulation, the wave became more organized into the day and chances of development were gradually raised. [8] At the time, Douglas' southwest movement was largely influenced by strong mid-level ridging to its north. [32] Douglas' post-tropical low entered the Western Pacific basin later on July 30. On the forecast track, Douglas will be near the main Hawaiian Islands Saturday night through Sunday night. A turn toward the west at a similar forward speed is expected later today, followed by a turn toward the west-northwest Wednesday night (July 22). [19][20] At this time, Douglas was located roughly 325 miles east of Hilo, Hawaii. This was supported by the Advanced Microwave Scanning Radiometer 2 (AMSR2) instrument (that also flies aboard Suomi NPP) data taken roughly 20 minutes earlier, which also seemed to show an exposed circulation on the southeast side.”, CPHC Hurricane forecaster Thomas Birchard said in the July 26 discussion, “Worth noting is that the data also indicate that the low-level center is south of the center that is seen in conventional satellite imagery. 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. [34] By July 25, hurricane warnings were put in effect for Oahu and Kauai, while tropical storm warnings were issued for Big Island and Maui as Douglas' track forecast became more definitive. NASA’s Goddard Space Flight Center, National Aeronautics and Space Administration, https://blogs.nasa.gov/hurricanes/tag/douglas-2020/, NASA Aids Disaster Response after Eta and Iota Hit Central America. Track the Storm. Maximum sustained winds were near 40 mph (65 kph) with higher gusts. Tropical cyclones are made up of hundreds of thunderstorms, and when there are no strong storms present in satellite imagery, it is a sure sign of weakening. Douglas is moving toward the west-northwest near 18 mph (30 km/h). Early on July 22, Douglas was still a tropical storm. [11] Convection re-developed and a ragged eye became briefly evident on satellite imagery, indicating Douglas had strengthened to low-end hurricane intensity. Maximum sustained winds have increased to near 120 mph (195 kph) with higher gusts. What NASA-NOAA’s Suomi NPP Satellite Showed. Douglas is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. NOTE: Since this stream Douglas has moved even further north of the forecasts and information available during the live event. Those storms had cloud top temperatures as cold as minus 50 degrees Fahrenheit (minus 45.5 Celsius). [28] After moving away from Kauai, Douglas briefly re-intensified as confirmed from reconnaissance. [21] Douglas continued a slow approach to the Hawaiian islands while retaining its intensity,[22] before weakening further as it passed north of Big Island. It was centered near latitude 24.7 degrees north and longitude 175.4 degrees west. This generic term describes a cyclone that no longer possesses sufficient tropical characteristics to be considered a tropical cyclone. The imagery showed Douglas’ center staying just off shore from the Hawaiian Islands. Strong wind shear has been the undoing of Tropical Storm Douglas. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 105 miles (165 km). Infrared data provides temperature information, and the strongest thunderstorms that reach high into the atmosphere have the coldest cloud top temperatures. [5] This, bundled with increasing satellite estimates, allowed the National Hurricane Center to upgrade the depression to Tropical Storm Douglas at 03:00 UTC, July 21. Gradual weakening is forecast to begin by early Friday. It became a tropical depression on July 2… On July 25 at 5 a.m. EDT (0900 UTC) Hurricane Douglas was a strong Category 2 storm with winds near 110 mph. Tropical cyclones/hurricanes are the most powerful weather events on Earth. Douglas weakens, but Hawaii could still see severe impact Thirteen hurricane shelters will open Sunday morning on Oahu as Hurricane Douglas bears down on the island state Strengthening is forecast during the next couple of days, and Douglas is expected to become a hurricane on Wednesday, July 23. A Hurricane Watch is in effect for Hawaii County, Maui County, including the islands of Maui, Lanai, Molokai and Kahoolawe and Oahu. [16] Douglas entered the Central Pacific Hurricane Center's area of responsibility by 21:00 UTC on July 24. Cloud top temperatures that cold indicate strong storms with the potential to generate heavy rainfall. Each level needs to be stacked on top each other vertically in order for the storm to maintain strength or intensify. The estimated minimum central pressure was 967 millibars. On July 28, NOAA’s Central Pacific Hurricane Center (CPHC) continued posting warnings and watches. [18] Douglas eventually fell below major hurricane status late on July 24, and weakened to a Category 1 hurricane about 12 hours later. [11] It soon became apparent Douglas was entering a phase of rapid intensification as a ring of intense thunderstorms formed around a warming eye. [13] Intensification slightly leveled down as the day went on, but the formerly ragged eye became very warm and symmetrical, indicating the storm had entered a more stable state. Large swells generated by Douglas will affect a large swath of the Papahanaumokuakea Marine National Monument the next couple of days. Maximum sustained winds are near 90 mph (150 kph) with higher gusts. Douglas is the first Eastern Pacific major hurricane of 2020. The National Hurricane Center’s key about Douglas is that the storm is expected to move near or over portions of the Hawaiian Islands this weekend, and there is an increasing chance that strong winds, dangerous surf, and heavy rainfall could affect portions of the state beginning Saturday night or Sunday. A Tropical Storm Watch is in effect for portions of the Papahanaumokuakea Marine National Monument from Nihoa to French Frigate Shoals. Douglas is moving toward the west-northwest near 17 mph (28 kph), and this general motion will continue the next couple of days, with a slight turn toward the west. [35] Emergency sirens were blared across Oahu and Maui on July 26 as Douglas approached closer to the islands. A Tropical Storm Watch is in effect for portions of the Papahanaumokuakea National Marine Monument from Maro Reef to Lisianski. using the NASA Worldview platform, an animation was created to show Douglas over four days. Note that former tropical cyclones that have become fully extratropical… as well as remnant lows…are two classes of post-tropical cyclones. Maximum sustained winds are near 110 mph (175 kph) with higher gusts. NASA’s Terra satellite uses infrared light to analyze the strength of storms by providing temperature information about the system’s clouds. The west-northwestward motion is forecast to continue at least through Saturday. Hurricane Douglas triggers emergency declaration in Hawaii as Texas braces for Hanna. HONOLULU (KHON2) — Hurricane Douglas continued to nudge northward, according to the Central Pacific Hurricane Center’s 8 p.m. update on July 24. Wind shear had sapped the strength of the storm and prevented strong thunderstorms from forming. A Tropical Storm Warning is in effect for Hawaii County, Maui County, including the islands of Maui, Lanai, Molokai and Kahoolawe. Gradually weaken, but is still likely to bring rain and wind impacts to Hawaii are from... 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