NOAA GOES Image Viewer website
2 Feb 2023 - 19:49 EST
3 Feb 2023 - 00:49 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 - 02 Feb 2023 - 2346 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 02 Feb 2023 - 2346 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 02 Feb 2023 - 2351 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 02 Feb 2023 - 2351 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 02 Feb 2023 - 2356 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 02 Feb 2023 - 2356 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0001 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0001 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0006 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0006 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0011 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0011 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0016 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0016 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0021 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0021 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0026 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0026 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0031 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0031 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0036 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0036 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0041 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 03 Feb 2023 - 0041 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)