A positively-tilted upper-level trough generated severe thunderstorms across the eastern U.S. recently. The associated surface low-pressure system with attendant cold front spawned numerous severe storms from Mississippi to Ohio to Virigina. The LightningCast model picked up on this developing convection,

GOES-16 True-Color imagery, daily at about 2050 UTC, from 13-24 September 2024 Hurricane Helene spent time percolating in the northwestern Caribbean over the past week. The animation above show true-color imagery from the CSPP Geosphere site at 1-day intervals from

The Fall Equinox in 2024 happened on September 22. According to the astronomical definition of the seasons, the autumnal (or fall) equinox marks the end of summer and the beginning of autumn, which lasts until the winter solstice (around December

NOAA-21 VIIRS Day Night Band visible (0.7 µm) imagery, 0903 UTC on 12 September 2024 (Click to enlarge) Day Night band visible imagery (0.7 µm) from NOAA-21 shows the characteristic signal of Aurora Borealis over southern Canada early in the

RealEarth LightningCast Display over Bebinca, 1650-1920 UTC on 11 September 2024, plotted over the Himawari-9 Band 13 (10.4 µm) imagery (Click to enlarge) LightningCast probabilities (from this website) over the Central Dense Overcast of Tropical Cyclone Bebinca in the western

GOES-East True Color imagery, 1816 UTC 10 September – 0001 UTC 11 September 2024 Francine became the 4th Hurricane of the Atlantic Tropical Cyclone season at 0000 UTC on 11 September (NHC advisory) 2024. The animation of True-Color imagery, above,