Category Archives: Aviation Weather

21 October 2019 – nighttime detection of fog and outflow boundaries

During the overnight hours of 21 October 2019, we analyze multiple applications of GOES imagery at night. First, we look over the northeast where fog developed.  Here is the GOES-16 nighttime microphysics product: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/21Oct19/fog&loop_speed_ms=60 We observe large areas of fog … Continue reading

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17 April 2019 thunderstorm event over northern Mexico as observed by GOES-16

By Louie Grasso and Dan Bikos On the day of 17 April 2019 observations indicated a significant upper-level trough over the southwest portions of the US.  As is typical with this type of synoptic setup, southwesterly flow ahead of the … Continue reading

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Nighttime Fog Monitoring

Satellite fog monitoring during the nighttime can be a challenge since geostationary datasets are limited to infrared imagery. However, with the new GOES-16/17 and JPSS datasets users can employ polar-orbiting and geostationary imagery to identify and monitor areas of fog … Continue reading

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Low cloud / fog over snow covered ground on 25 February 2019

During the overnight hours of 25 February 2019, low clouds and fog developed over portions of northwest Kansas, eastern Colorado and southwest Nebraska.  The low cloud and fog developed over a field of snow on the ground from a recent … Continue reading

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Popocatépetl Volcanic Eruption

Popocatépetl Volcano erupted overnight, spewing volcanic ash emissions, from 0200-1600UTC, 15 February 2019. Geostationary and polar-orbiting satellites observed this atmospheric phenomenon from 00-16 UTC, 15 February 2019. GOES-16 3.9um  A hot spot (i.e. white, warm brightness temperature) is produced from … Continue reading

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