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3 Nov 2024 - 12:26 EST
3 Nov 2024 - 17:26 UTC

Post-tropical Cyclone John - Air Mass at 18.5°N - 103.5°W

 « Storm overview »

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Apparent 'jumps' in the animation occur due to adjustments to reflect storm movement.

  

  

  
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0020 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0020 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0030 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0030 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0040 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0040 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0100 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0100 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0110 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0110 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0120 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0120 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0130 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0130 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0140 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0140 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0200 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0200 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0210 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0210 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0220 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0220 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0230 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0230 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0240 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0240 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0300 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0300 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0310 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0310 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0320 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0320 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0330 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0330 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0340 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0340 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0400 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0400 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0410 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0410 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0420 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0420 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0430 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0430 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0440 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0440 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0500 UTC
Air Mass - RGB based on data from IR & water vapor - 28 Sep 2024 - 0500 UTC
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)