NOAA GOES Image Viewer website
27 Jan 2023 - 02:46 EST
27 Jan 2023 - 07:46 UTC

GOES-West - Sector view: Pacific Northwest - Nighttime Microphysics

1 hour loop - 12 images - 5 minute update

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Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0646 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0646 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0651 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0651 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0656 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0656 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0701 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0701 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0706 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0706 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0711 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0711 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0716 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0716 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0721 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0721 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0726 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0726 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0731 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0731 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0736 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0736 UTC Latitude / Longitude grid
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0741 UTC
Nighttime Microphysics - RGB to distinguish clouds from fog - 27 Jan 2023 - 0741 UTC Latitude / Longitude grid

This RGB will be phased out around 1 Feb 2023 and will be replaced by the Day Night Cloud Micro Combo RGB.

Nighttime Microphysics RGB The distinction between low clouds and fog in satellite imagery is challenging. While the difference between the 10.4 and 3.9 μm channels has been a regularly applied product to meet aviation forecast needs, the Nighttime Microphysics (NtMicro) RGB adds another channel difference (12.4- 10.4 μm) as a proxy to cloud thickness and repeats the use of the 10.4 μm thermal channel to enhance areas of warm (i.e. low) clouds where fog is more likely. The NtMicro RGB is also an efficient tool to quickly identify other cloud types in the mid and upper atmosphere.

• For more details, see the Nighttime Microphysics RGB Quick Guide, (PDF, 1.41 MB)