Using a combined LEO/GEO approach, ABI and VIIRS retrievals are used to estimate flooding from a satellite perspective. Individual flood products from VIIRS and ABI (or AHI, depending on location) are blended to create the NOAA LEO/GEO Flood Mapping Product.An example is shown below over the... Read More
Auckland, on the North Island of New Zealand, has experienced significant flooding starting on 27 January 2023. MIMIC Total Precipitable Water fields, above, (from this site, or downloadable here) show an atmospheric connection between the deep tropical moisture that is persistent between 5oS and 20oS; a filament moves with a cyclonic swirl from 26-28 January. A second region of... Read More
1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Clean” Infrared images (above) showed convection — which was focused along a quasi-stationary surface trough axis — that was producing periods of moderate to heavy rainfall across parts of Hawai’i on 28 January 2023. Numerous Flash Flood Warnings were issued by NWS Honolulu during this time,... Read More
A strength of the Night Microphysics RGB in the tropics is that it’s pretty easy to use it in regions of mostly clear skies to diagnose wind shear, because high clouds will show up as dark red, and low cloud show up as pale pink or cyan (see this annotated image). In... Read More
