NOAA GOES Image Viewer website
27 Jan 2023 - 15:21 EST
27 Jan 2023 - 20:21 UTC

GOES-West - Sector view: Pacific Northwest - Tropospheric Dust Content

1 hour loop - 12 images - 5 minute update

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Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1921 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1921 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1926 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1926 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1931 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1931 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1936 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1936 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1941 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1941 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1946 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1946 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1951 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1951 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1956 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1956 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2001 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2001 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2006 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2006 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2011 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2011 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2016 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 2016 UTC Latitude / Longitude grid
legend for Dust RBG

Dust RGB key:

1 - Dust plume, day (bright magenta, pink) Note: Dust at night becomes purple shades below 3 km

2 - Low, water cloud (light purple)

3 - Desert surface, day (light blue)

4 - Mid, thick clouds (tan shades)

5 - Mid, thin cloud (green)

6 - Cold, thick clouds (red)

7 - High, thin ice clouds (black)

8 - Very thin clouds, over warm surface (blue)


Dust RGB Dust can be hard to see in visible and infrared imagery because it is optically thin, or because it appears similar to other cloud types such as cirrus. The RGB product is able to contrast airborne dust from clouds using band differencing and the IR thermal channel. The IR band differencing allows dust storms to be observed during both daytime and at night.

• For more details, see the Dust RGB Quick Guide, (PDF, 978 KB)