NASA conducted a SLS rocket Green Run Test at Stennis Space Center in southern Mississippi on 18 March 2021. The test began at 2037 UTC, with the engine burn lasting about 8 minutes. Signatures of the resulting condensation cloud (brighter shades of white) were evident in GOES-16 (GOES-East) ABI spectral bands 1 (0.47 µm),... Read More

Clear skies over much of Alaska on 12 March meant that GOES-17 had a clear view of Denali.  The animation above, of GOES-17 CIMSS True Color imagery, shows the shadow of Denali (near the center of the imagery, due north of Cook Inlet) moving during the day.A higher-resolution animation, below,... Read More

The system that produced the high-impact flooding event on Maui (discussed here) also  caused flooding rains on Oahu on the 9th.   (A Flash Flood Emergency was declared at 348 HST on 9 March:  Link)  How well did quantitative satellite estimates of this event perform?  Hydroestimator values, above, from the 24... Read More

GOES-17 (GOES-West) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.35 µm) images (above) revealed 2 bursts of back-building thunderstorms that produced heavy rainfall (as much as 19.21 inches) and flooding along the northern coast of the Hawaiian island of Maui on 08 March 2021. This heavy rain caused rockslides that closed some... Read More