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Category: GOES-18

SAR Observations over American Samoa (part IV)

RADARSAT-2 passed over Samoan waters again on 9 February 2023, just after sunset (above) and near sunrise (at bottom). The imagery above compares the SAR winds to GOES-18 visible (with a changed enhancement to account for low light conditions, with reflectance values ranging from 0 to 6.3 only vs. the... Read More

Snow squalls in Wyoming and Colorado

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Clean” Infrared Window (10.3 µm) images (above) showed the colder cloud tops (shades of green) associated with snow squalls that moved east-southeastward across parts of far southern Wyoming and northern/central Colorado late in the day on 08 February 2023. Plots of 15-minute METAR surface reports indicated how... Read More

SAR Observations near American Samoa (part III)

Synthetic Aperture Radar (SAR) RADARSAT-2 observations continue in/around the South Pacific Ocean surrounding American Samoa. On 6 February, observations occurred at 0543 and 1640 UTC. The toggle below compares the 0540 UTC Band 13 Clean Window infrared (10.3 µm) image with overlain SAR winds (color-enhanced with the AWIPS ‘gridded data’... Read More