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27 Jan 2023 - 13:35 EST
27 Jan 2023 - 18:35 UTC

GOES-West - Sector view: Northern Pacific - Air Mass

2 hour loop - 12 images - 10 minute update

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Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1600 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1600 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1620 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1620 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1630 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1630 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1640 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1640 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1650 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1650 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1700 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1700 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1710 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1710 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1720 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1720 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1730 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1730 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1740 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1740 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1800 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1800 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1810 UTC
Air Mass - RGB based on data from IR & water vapor - 27 Jan 2023 - 1810 UTC Latitude / Longitude grid
legend for AirMass RBG

Key for AirMass RGB:

1 - Jet stream / potential vorticity (PV) / deformation zones / dry upper level (dark red / orange)

2 - Cold air mass (dark blue/purple)

3 - Warm air mass (green)

4 - Warm air mass, less moisture (olive/dark orange)

5 - High thick cloud (white)

6 - Mid level cloud (tan/salmon)

7 - Low level cloud (green, dark blue)

8 - Limb effects (purple/blue)

Air Mass RGB is used to diagnose the environment surrounding synoptic systems by enhancing temperature and moisture characteristics of airmasses. Cyclogenesis can be inferred by the identification of warm, dry, ozone-rich descending stratospheric air associated with jet streams and potential vorticity (PV) anomalies. The RGB can be used to validate the location of PV anomalies in model data. Additionally, this RGB can distinguish between polar and tropical airmasses, especially along upper-level frontal boundaries and identify high-, mid-, and low-level clouds.

• For more details, see the Air Mass RGB Guide, (PDF, 1.1 MB)