Four major wildfires are burning in northern Washington, including Upper Falls, Little Bridge Creek, Lone Mountain, and Duncan fires, all started by lightning strikes, with dry conditions and red flag warnings in place.
Tropical Storm Julio is weakening as it moves through cooler Central Pacific Ocean waters, with most clouds and precipitation pushed north of the center. The storm is expected to gradually turn north before turning into a depression by August 14, according to NOAA's CPHC.
Genevieve has been downgraded to a tropical storm, tracking northwestward at 8 knots per hour. Maximum sustained winds of 70 knots and gusts up to 85 knots are expected, making it far southeast of the Aleutian islands within 2-3 days.
The Devil's Elbow Complex is a four-wildfire system burning over 17,000 acres on the Colville Indian Reservation. The fires, sparked by lightning, have merged and are fuel-driven, producing pyrocumulus clouds. Active fire behavior is expected, with evacuations in place for nearby communities.
Hurricane Julio is expected to weaken slightly over the next 48 hours, down to tropical storm strength by tonight. The storm will pass north of the Hawaiian islands, bringing large swells that produce dangerous surf conditions.
The Southfork Complex fire began with a lightning strike on July 31, 2014, affecting 62,476 acres to date. Crews are utilizing helicopters for bucket drops and constructing indirect lines to secure the perimeter of the fire.
Typhoon Halong is expected to make landfall in southern Japan on August 9 with maximum sustained winds near 85 knots, generating dangerous swells. The storm has already passed over the Minamidaito and Kitadaito Islands with hurricane-force winds.
Hurricane Iselle is expected to bring heavy rains, high surf, and damaging winds to Hawaii. Rainfall totals of 5-12 inches are predicted along its track, with storm surge up to 3 feet expected on the Big Island.
Dozens of fires burn in the Northwest Territories, producing massive amounts of smoke that have drifted over the Labrador Sea. The smoke carries hazardous particles and chemicals, posing health risks to vulnerable populations.
Super Typhoon Genevieve rapidly intensified into a Category 5 storm after crossing the International Dateline. The NASA-NOAA Suomi NPP satellite captured infrared images of the storm, revealing a symmetrical structure with a clear eye and powerful thunderstorms.
NASA's Fermi and Aqua satellites captured two distinct views of Hurricane Julio as it intensified: a gamma-ray flash produced by the powerful electric fields in thunderstorms, and a more structurally organized storm. These findings provide insights into the complex relationship between thunderstorms and hurricane dynamics.
A rare pyrocumulonimbus cloud has been spotted over Canadian wildfires, posing a risk to air quality. The cloud, which is an extreme manifestation of pyrocumulus clouds, can inject smoke and pollutants high into the atmosphere, affecting areas far from the fire site.
Jason Budinoff's project uses additive manufacturing to create fully functional imaging telescopes with a reduced number of components. The technology enables the production of complex geometries and mitigates risks associated with traditional manufacturing methods.
The NASA Terra satellite captured images of three tropical cyclones in the Pacific Ocean: Hurricane Genevieve, Hurricane Iselle, and Hurricane Julio. Satellite data shows that Genevieve has strengthened into a hurricane with maximum sustained winds near 75 mph.
Astronomers discovered a star system that could have left behind a 'zombie star' after an unusually weak supernova explosion. The team used Hubble Space Telescope images taken years before the stellar explosion to identify a blue companion star feeding energy to a white dwarf.
NASA's GOES-East satellite captures Bertha merging with a frontal system in the North Atlantic Ocean, causing its circulation to become barely discernible. The post-tropical storm is now moving rapidly northeastward and then eastward over the North Atlantic.
Typhoon Halong has reopened its eye after going through eyewall replacement, a sign of weakening winds. The storm is still powerful, with maximum sustained winds of 85 knots and rough seas.
Tropical Storm Julio is part of a heated Eastern Pacific, with warmer waters contributing to its development. The storm's trajectory and potential impact on Hawaii are being closely monitored by forecasters.
The Atmospheric Infrared Sounder and Moderate Resolution Imaging Spectroradiometer instruments aboard NASA's Aqua satellite provided infrared data and a visible image of Hurricane Bertha. The storm weakened to a tropical storm by August 5, with maximum sustained winds near 65 mph.
Thunderstorms re-developed around Tropical Depression Genevieve's center on August 5, suggesting the storm may strengthen. Genevieve is forecast to gradually intensify over the next couple of days and cross the International Date Line in a few days.
TRMM satellite data revealed extreme rainfall rates of almost 182 mm per hour in Hurricane Iselle's eye wall, making it a category four hurricane at the time. The storm is expected to weaken as it heads westward into the Central Pacific Ocean and may make landfall over the Big Island as a tropical storm.
Typhoon Halong appears lopsided due to inhibited thunderstorm development in the northern quadrant. The storm's cloud top temperatures indicate potential for heavy rainfall.
A blanket of heavy smoke covers dozens of wildfires in remote eastern Russia areas caused by lightning strikes. The fires spread rapidly, covering the landscape with no apparent stopping point.
NASA captured images of a large swath of smoke from Canadian wildfires hovering over the Great Lakes and settling over the Bay of Baffin, which borders Greenland. The fires have been raging this summer, with some smoke drifting southward into the US.
Fires and smoke are as widespread as they were in July, with hundreds of fires detected across the region. The Air Quality Health Index reached 12 on August 3, indicating a high health risk due to air pollution.
Tropical Storm Nakri formed on August 2 and struggled to organize for a week, eventually becoming visible to NASA's Suomi NPP satellite. The storm dissipated just one day later while approaching the Korean peninsula, with its maximum sustained winds reaching near 40 knots.
Fires in California and Oregon are burning due to lightning strikes, affecting over 36,000 acres. The Beaver Complex fires have reached 20% containment despite shifting wind conditions and weather inversions aiding firefighting efforts.
NASA's Aqua and Terra satellites captured images of Super Typhoon Halong, revealing an 11.5-mile-wide eye and signs of eyewall replacement. The storm has weakened from a Category 5 to a Category 2 hurricane, with maximum sustained winds near 120mph.
Tropical Storm Bertha passed over Puerto Rico and the British Virgin Islands before heading towards the Bahamas. The storm's powerful thunderstorms were being pushed southeast by wind shear from the northwest.
Tropical Depression Genevieve may strengthen late on August 4 and 5, while Hurricane Iselle moves toward the Hawaiian Islands. Tropical Storm Julio is also forming southwest of Mexico, expected to become a hurricane later this week.
The Eiler wildfire has consumed 26,000 acres with unknown cause, while the Bald Fire has spread 39,500 acres with moderate containment, fueled by dry lightning and thunderstorms.
Tropical Storm Bertha is experiencing heavy rainfall northeast of the center due to strong vertical wind shear. The storm's interaction with upper-level troughs will continue to limit its development and strengthening.
Scientists observed six minutes worth of data from NASA's EUNIS mission, gathering strong evidence for nanoflares as the source of the sun's corona heat. The detection is consistent with only one current theory: constant bursts of impulsive heating provide the mysterious extra heat.
Tropical Storm Iselle has developed powerful thunderstorms, including one with cloud top temperatures as cold as -63F/-52C, according to NASA's Aqua satellite data. The storm is expected to strengthen over the next couple of days due to favorable environmental conditions.
Tropical Storm Halong is expected to intensify for three days before weakening, with forecasters predicting a path near Okinawa. The storm's strongest thunderstorms and coldest cloud tops are located on the east side of its center, indicating potential heavy rainfall.
A train of five tropical lows is stretching across the Pacific Ocean, featuring remnants of Tropical Storm Genevieve and newly developed Tropical Storm Iselle. The system includes three other low-pressure areas, with a well-developed Iselle near the end of the train.
Tropical Depression Genevieve is located near latitude 13.1 north, longitude 150.5 west, about 550 miles southeast of Hilo, Hawaii. It's moving west at 6 mph with minimal intensity changes forecasted through Friday night.
Astronomers have discovered the most distant galaxy that acts as a cosmic magnifying glass, with a massive elliptical galaxy weighing 180 billion times more than our sun. The lensing effect offers insight into how young galaxies build themselves up into today's massive dark-matter-dominated galaxies.
Novae are sudden, short-lived brightenings of stars caused by thermonuclear explosions on white dwarf surfaces. NASA's Fermi Gamma-ray Space Telescope has detected gamma-rays from these events, showing they release up to 100,000 times the annual energy output of the sun.
Tropical Storm Halong moved northwest of Guam, with heavy rain falling over the island and thunderstorms reaching heights of over 10.4 miles near its center.
Tropical Storm Genevieve weakened to a tropical depression on July 27, but reorganized and became a tropical depression again on July 30. Rainfall rates reached over 28.5 mm/hr near the storm's center.
NASA has chosen a team at Goddard Space Flight Center to build its first Earth science-related CubeSat mission, known as IceCube. The tiny payload will test a new submillimeter-wave receiver that could help advance scientists' understanding of ice clouds and their role in climate change.
NASA's Aqua satellite captures infrared data on Tropical Storm Halong and developing System 96W, showing powerful thunderstorms with potential for heavy rainfall. Halong is expected to strengthen to typhoon status by August 1.
NASA's Goddard Space Flight Center team has demonstrated that electrostatically actuated microshutter arrays are as functional as magnetically activated arrays, eliminating macro-moving parts and lowering voltage needs. This advancement makes them suitable for Explorer-class missions and larger fields of view.
Forest fires in the Northwest Territories have destroyed over 893,000 hectares of land, with lightning blamed for most fires. The ongoing wildfires are also affecting residents in Yellowknife, prompting residents to stay indoors due to unhealthy air quality.
A NASA-funded X-ray instrument has confirmed that a region of million-degree interstellar plasma known as the local hot bubble is the main source of a foggy glow observed over the entire sky. The study also establishes upper limits on soft X-rays produced within our planetary system by solar wind.
Tropical Storm Hernan's weakening lifted its cloud tops, with infrared data revealing warming temperatures in the system. The storm dissipated into a remnant low-pressure area, with forecasters predicting its remaining systems to dissipate over the next few days.
Tropical Storm Halong is intensifying with a strong eye forming and closely tracked by NASA's Aqua satellite. The storm is expected to move west-northwest through the Marianas Islands while intensifying.
Industrial air pollution from smelting and mining activities arrived at the South Pole in the late 19th century, decades before Norwegian explorer Roald Amundsen's historic visit in 1911. The study, published in Scientific Reports, shows that lead concentrations peaked in 1900 and remained high until the 1920s.
Tropical Storm Genevieve has weakened to a tropical depression, but its remnants are being chased by two developing low-pressure areas. NASA's GOES-West satellite imagery shows these systems moving westward towards Hawaii, with a 30% chance of development over the next couple of days.