Tropical Storm Idalia has formed in the northwestern Caribbean Sea, in between Cuba and Mexico. The True-Color mp4 animation above, taken from CSPP Geosphere site (direct link to the animation), shows active convection over the Caribbean that is coalescing around the low-level circulation center (located near 20oN, 85.5oW at 2100 UTC... Read More

This recent blog post highlighted an Advanced Microwave Scanning Radiometer (AMSR-2) product showing estimates of Sea Ice concentration at high spatial resolution. This followup post shows the product on a different day in 2022. The MODIS True-Color imagery below, from March 22, 2022, shows ice in the Bering Sea and Arctic Ocean surrounding... Read More

GOES-18 (GOES-West) Mid-level Water Vapor (6.9 µm) images (above) included plots of 1-hour Precipitation Accumulation — which showed rainfall associated with the northward spread of moisture across the Southwest US as Tropical Storm Hilary made landfall in Baja California on 20 August 2023. A similar animation with plots of 6-hour Precipitation Accumulation is... Read More

Hurricane Hilary, off the coast of Mexico, is forecast to move northward into the southwestern United States, becoming a rare instance of a tropical cyclone affecting California. The 1200 UTC imagery on 18 August 2023 above shows a well-defined eye, with warm sea-surface temperatures (SSTs) in the Pacific Ocean along... Read More