Calendar
Search
Archives
Categories
Blogroll
Links
Monthly Archives: February 2019
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
Posted in Ceilings, Fog, Visibility
Leave a comment
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
Posted in Aviation Weather, GOES R, POES, Satellites, Volcano Weather
Leave a comment
14 February 2019 California Atmospheric River event
Advected Layer Precipitable Water loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/14feb19/alpw&loop_speed_ms=400 Blended Total Precipitable Water loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/14feb19/blended_tpw&loop_speed_ms=100 Percent of Normal TPW loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/14feb19/blended_percent&loop_speed_ms=100
VIIRS Captures Ice/Ocean Movements
By Lewis Grasso and Jorel Torres VIIRS captures interesting imagery in the Arctic. From 0314 UTC to 1233 UTC, 13 February 2019, VIIRS, on-board NOAA-20 and S-NPP, imaged fascinating features in the Arctic. In particular, imagery from Band I4 (3.74um) … Continue reading
Posted in Miscellaneous, POES, Satellites
Leave a comment
4 February 2019 significant ice storm in the Upper Great Lakes
On 4 February a shortwave tracked across the Upper Great Lakes towards the east, ahead of the shortwave, anomalously high moisture at low to mid-levels existed which contributed to a historic ice storm for the region. The NWS forecast office … Continue reading
Posted in Icing
Leave a comment