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

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

Hourly estimates of Total Precipitable Water (TPW) from MIMIC, shown above in an mp4 animation (click here for an animated gif), show the Intertropical Convergence Zone (ITCZ, as measured by TPW) over the western Pacific evolving from a linear feature at the start of the animation to one with a... Read More