The animation above steps between NUCAPS Sounding Availability points and MIRS estimates of Rain Rate derived from NOAA-20’s Advanced Technology Microwave Sounder (ATMS) instrument (and available via LDM download from CIMSS). ‘Red’ points in NUCAPS sounding availability are usually associated with precipitation, and that relationship is apparent in the toggle. With the exception of four red points... Read More
GOES-16 Split Window difference (SWD) fields, above, and Meteosat Dust RGB imagery (both from 1500 UTC on 15 June 2020, and available at this site) suggest that a Saharan Air Layer (SAL) event is developing in the eastern Atlantic Ocean. (Click here to see an animation of the Split Window Difference; AWIPS note: the... Read More
GOES-17 (GOES-West) Mid-level Water Vapor (6.9 µm) images (above) showed the circulation of an anomalous middle-tropospheric cutoff low over the northwestern portion of Alaska on 12 June 2020. A Potential Vorticity (PV) anomaly associated with this low was causing the dynamic tropopause — represented by the pressure of the PV1.5 surface —... Read More
Showers developed over southern Wisconsin late in the day on 12 June 2020. What satellite products could be used to anticipate where the showers would develop? The animation of visible and radar, above, shows that the storms initiated near a boundary (mostly stationary) that separated Lake Michigan-influenced air with less... Read More
