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Category: Fog detection

Widespread fog/stratus over snow cover across the Northern Plains

A sequence of GOES-16 (GOES-East) “Red” Visible (0.64 µm), Day Cloud Phase Distinction RGB and Day Snow-Fog RGB images (above) showed widespread fog/stratus across parts of Montana, North/South Dakota and Minnesota during the day on 06 January 2023. With a quasi-stationary area of high pressure located over that area (surface analyses), winds remained light and the fog/stratus layer was slow... Read More

GOES-18 IFR Probability Fields now operational

GOES-18 became the operational GOES-West satellite at 1800 UTC on 4 January. The toggle above shows the GOES-West (labeled as GOES-17, but the 1806 UTC image is using GOES-18 satellite information) IFR Probability Fields before/after the changeover. The IFR Probability field gives more useful information about surface visibility/ceiling restrictions than (for example) visible imagery (shown here) that shows widespread cloudiness at the... Read More

There GOES a Review of 2022

It’s very hard to choose just one event from every month of the year, but the goal is to show the range of phenomena and locations that NOAA‘s GOES ABI routinely monitors, in this case during 2022. Most loops generated are from the University of Wisconsin-Madison CIMSS Satellite Blog, which... Read More

Lake effect cloud plume in northeastern Montana

GOES-16 (GOES-East) Nighttime Microphysics RGB and Day Snow-Fog RGB images (above) showed a lake effect fog/stratus plume that was meandering slowly northward from the still-unfrozen Fort Peck Lake in northeastern Montana (just south of Glasgow) on 08 December 2022.During the hours leading up to sunrise, GOES-16 Nighttime Microphysics RGB images with an overlay of the GOES-16 Cloud Top Phase derived... Read More