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18 Mar 2024 - 22:34 EDT
19 Mar 2024 - 02:34 UTC

Post-tropical Cyclone Vicky - Air Mass at 21.1°N - 39.1°W

 « Storm overview »

12 frame animation displayed.

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

  

  

  
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0230 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0230 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0240 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0240 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0250 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0250 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0300 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0300 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0320 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0320 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0330 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0330 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0350 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0350 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0430 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0430 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0440 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0440 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0450 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0450 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0500 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0500 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0510 UTC
Air Mass - RGB composite based on the data from IR and WV - 18 Sep 2020 - 0510 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)