Austin astronomy cloud forecasts

Generated manually for astronomy events of interest or upon request. These charts are not manually updated. If you have questions, or ideas for other parameters that might help amateur astronomers, please E-mail .

Forecast for AAS astronomer's night valid May 23 2004 06Z (1 am Sunday morning) using May 22 2004 12Z 18 hr fcst data.
NOTE: Low level moisture was shown as being shallow, with greatest depth W-NW of San Antonio, so take these panels with a grain of salt.

About these maps
These maps depict the maximum relative humidity values in specific layers of the atmosphere at the forecast time. Values above 60% are indicative of a slight cloud risk or a thin layer, and values above 80% carry a high degree of probability of clouds. Source data is the latest NOAA/NCEP Eta model. Be aware that all numerical weather models have errors and may be unrepresentative of actual conditions. The general pattern of clouds shown is often much more useful than their specific locations.



High cloud (cirrus and cirrostratus)



Middle cloud (altocumulus and altostratus)



Low cloud (stratus, stratocumulus, etc)


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