NOAA GOES Image Viewer website
27 Jan 2023 - 12:40 EST
27 Jan 2023 - 17:40 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 - 1641 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1641 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1646 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1646 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1651 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1651 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1656 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1656 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1701 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1701 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1706 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1706 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1711 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1711 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1716 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1716 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1721 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1721 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1726 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1726 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1731 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1731 UTC Latitude / Longitude grid
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1736 UTC
Tropospheric Dust Content - RGB for identifying tropospheric dust - 27 Jan 2023 - 1736 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)