NOAA GOES Image Viewer website
27 Jan 2023 - 03:53 EST
27 Jan 2023 - 08:53 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 - 0751 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0751 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0756 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0756 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0801 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0801 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0806 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0806 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0811 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0811 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0816 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0816 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0821 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0821 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0826 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0826 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0831 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0831 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0836 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0836 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0841 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0841 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0846 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 0846 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)