The residents of American Samoa found themselves in the early morning hours of 20 November 2025, as strong maritime convection moved into the region. There is no radar in the area, so satellite observations are critical for operational awareness and nowcasting. The Band 13 infrared view on GOES-18 showed a... Read More
A large severe weather outbreak took place across the south central United States on Wednesday 2 April 2025. The NWS Storm Prediction Center (SPC) anticipated a significant weather event in the region, having predicted an enhanced risk of severe weather as early as Monday 31 March and a rare high risk the night before the event.... Read More
Early this morning at around 3:15 AM local time, an EF-0 tornado touched down in Pico Rivera, a community in Los Angeles County, California. It damaged several homes and knocked down numerous trees over the course of its mile-long path. Numerous instances of damaging winds were also reported, as seen... Read More
April showers developed over the upper Midwest on the afternoon of 24 April 2021. The toggle above shows atmospheric lapse rates (as derived from NUCAPS Sounding observations) at 1818 UTC in 3 different layers: 925-850 mb, 900-700 mb, and 850-500 mb. A very tight gradient in low-level lapse rates exists southwest-to-northeast over Wisconsin. ... Read More
