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30 Jan 2023 - 19:31 EST
31 Jan 2023 - 00:31 UTC

GOES-West - Sector view: U.S. Pacific Coast - Air Mass

2 hour loop - 12 images - 10 minute update

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Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2210 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2210 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2220 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2220 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2230 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2230 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2240 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2240 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2300 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2300 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2310 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2310 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2320 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2320 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2330 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2330 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2340 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2340 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2350 UTC
Air Mass - RGB based on data from IR & water vapor - 30 Jan 2023 - 2350 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 31 Jan 2023 - 0000 UTC
Air Mass - RGB based on data from IR & water vapor - 31 Jan 2023 - 0000 UTC Latitude / Longitude grid
Air Mass - RGB based on data from IR & water vapor - 31 Jan 2023 - 0010 UTC
Air Mass - RGB based on data from IR & water vapor - 31 Jan 2023 - 0010 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)