I awoke to thunderstorms in Madison, Wisconsin this morning. The elevated storms were riding a warm front at 850 mb, fueled by moderate-to-strong warm-air advection.This was a good opportunity to look at ProbSevere LightningCast version 2, which includes Multi-Radar Multi-Sensor (MRMS) Reflectivity -10C as a predictor, along with several visible, near-infrared,... Read More
On 20 February 2025, high winds at Pago Pago International Airport (located at 14.3oS, 170.7oW) meant Hawaiian Airlines Flight 465 (an A330 with 160 passengers on board) was forced to return to Honolulu (News Article; FlightAware screenshot) without its scheduled landing in Pago Pago. American Samoa at the time was within the... Read More
GOES-19 today is positioned at 89.5oW, the test position, but is presently scheduled to drift east to the GOES-East location at 75.2oW. When on station in early April, it will become the operational GOES-East satellite. CIMSS scientists have been modifying CSPPGeo software to produce products, such as LightningCast probability (available online here,... Read More
5-minute CONUS Sector GOES-16 (GOES-East) Visible and Infrared images (above) displayed a thunderstorm that was moving southeast from Aberdeen (KABR) to Watertown (KATY) in northeastern South Dakota on 24 February 2025. While overall GLM-detected lightning activity was relatively modest, periodic increases in Flash Extent Density (orange to red pixels) were evident.A Special... Read More
