1-minute Mesoscale Domain Sector GOES-16 “Clean” Infrared Window (10.3 µm) images (above) include an overlay of GLM Flash Extent Density — which showed rapidly-cooling cloud-top infrared brightness temperatures (and intermittent lightning) over the eastern half of Lake Erie, associated with the initial impulse of lake effect snow (LES) immediately downwind of the lake... Read More
The Gálvez-Davison index (GDI) is a useful derived product (available online here from NCEP) for predicting tropical convection in tradewind regimes. In general, the larger the GDI, the more likely that showers and thunderstorms will be present. The toggle above compares GDI with K-Index derived from NUCAPS data (the Sounding Availability plot shows in... Read More
RADARSAT-2 observations of SAR data near/around the island of Guam in the Marianas Islands continue in November (as previously discussed here, here and here). Overpasses on 15 November (above) and 17 November (below) contain features that deserve comment. For example, there is an obvious seam (and a less-obvious second seam)... Read More
Overlapping 1-minute Mesoscale Domain Sectors provided 30-second images from GOES-16 (GOES-East) ABI spectral bands 01-16, in addition to a Rocket Plume RGB (above) — which displayed visible reflectance and/or thermal signatures of the NASA Artemis Space Launch System rocket booster (as it moved quickly northeastward) and its low-altitude launch condensation cloud (as it drifted... Read More
