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Videos: This week in Weather

LATEST VIDEO: This Week in Weather: Gravity Waves:

This Week in Weather: Gravity Waves:

On April 3, 2021, NOAA’s GOES-16 and NOAA-20 satellites viewed gravity waves rippling over Western Pennsylvania. Waves form in the atmosphere when air is disturbed, like a stone dropped into a calm pond. The gravity waves seen over Pennsylvania were caused by air being forced upward by hills into a layer of stable air. Gravity causes the air to fall back down, and it begins to oscillate, creating a ripple effect. Download Video | Transcript Credit: NOAA/NASA/CIRA

This Week in Weather: Severe Storms Strike Southern U.S.:

From March 17-18, 2021, a severe weather outbreak swept across the Southern U.S. The storms produced damaging winds, large hail, and dozens of tornadoes, including significant EF2 tornadoes in Mississippi and Alabama. Throughout the event, GOES-16 (GOES East) monitored conditions and tracked the storms in real time. The satellite provided important information on cloud properties, storm structure, and lightning activity within the storms. Download Video | Transcript Credit: NOAA/NASA Goddard Space Flight Center/CIRA

This Week in Weather: Late-Season Snowstorm Breaks Records:

A late-season snowstorm dropped feet of snow in parts of Colorado, Wyoming, Nebraska and South Dakota from March 13-14, 2021. Record-breaking snowfall was measured in Cheyenne, Wyoming and Denver, Colorado. NOAA’s geostationary satellites, GOES-16 (GOES East) and GOES-17 (GOES West) and polar-orbiting NOAA-20 and Suomi-NPP satellites monitored a low-pressure system in the region and followed its evolution into an historic storm. The satellites allowed scientists to forecast the storm’s path and intensity while providing early warning. They also kept watch throughout the event, monitoring the progression of the storm and resulting snow cover. Download Video | Transcript Credit: NOAA/NASA Goddard Space Flight Center/CIRA

Tracking Fires from Space:

From March 7-9, 2021, NOAA satellites monitored numerous fires over the Southern Plains. GOES-16 (GOES East) observed these fires in near-real time. By keeping constant watch over the same area, GOES-16 helps to locate fires, detect changes in a fire’s behavior, and predict its motion. The NOAA-20 satellite captured high-resolution imagery of the fires on March 9. This satellite’s VIIRS instrument has an imager band with high spatial resolution, at 375 meters per pixel, which allows it to detect smaller, lower temperature fires. Together, the satellites monitored both the hot spots and smoke plumes from the fires. Satellites allow for detecting and monitoring a range of fires, providing information about the location, duration, size, temperature, and power output of those fires that would otherwise be unavailable. Download Video | Transcript Credit: NOAA/NASA Goddard Space Flight Center/CIRA

Superior Flow of Clouds:

On March 1, 2021, NOAA satellites monitored lake-effect clouds flowing over Lake Superior. The satellites captured light snow bands embedded in the clouds. Lake-effect snow occurs when very cold air moves over the warmer waters of a lake. GOES-16 viewed the clouds in motion and tracked convection within them, while NOAA-20 captured the scene in stunning detail when the satellite passed over that afternoon. Specialized GOES-16 imagery distinguished snow/ice (white) from the clouds (yellow). Download Video | Transcript Credit: NOAA/NASA/CIRA

This Week in Weather: Tracking Dust in the Wind:

From Feb. 17–22, 2021, NOAA satellites monitored a large plume of dust from the Sahara Desert as it traveled off the west coast of North Africa and across the Atlantic Ocean. The Saharan Air Layer (SAL), a mass of dry, dusty air that forms over the Sahara Desert, can transport dust far away from the Sahara throughout the year. NOAA satellites like the geostationary GOES-16 and GOES-17 and the polar-orbiting NOAA-20 and NOAA/NASA Suomi-NPP help forecasters and scientists to continuously monitor the evolution of SAL outbreaks and their effects on the meteorology and climatology of the tropical North Atlantic. Download Video | Transcript Credit: NOAA/NASA/CIRA