Category Archives: Severe Weather

General questions and answers concerning Severe Thunderstorms.

Nighttime view of inflow feeder clouds from GOES Nighttime Microphysics RGB

Posted on March 20, 2020 by dbikos

During the overnight hours of March 18-19, 2020, there were numerous reports of severe weather (including tornadoes) in north Texas: https://www.spc.noaa.gov/climo/reports/200318_rpts.html This blog entry will focus on the storm repsonsible for the tornado reports between 0615 – 0650 UTC near … Continue reading →

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Advected Layer Precipitable Water (ALPW) product for 5 February 2020 Severe and Flood event

Posted on February 6, 2020 by dbikos
Posted in Heavy Rain and Flooding Issues, POES, Severe Weather | Comments Off on Advected Layer Precipitable Water (ALPW) product for 5 February 2020 Severe and Flood event

10 January 2020 – Southern Plains Severe Weather event with Elevated Mixed Layer (EML)

Posted on January 10, 2020 by dbikos

https://rammb-slider.cira.colostate.edu/?sat=goes-16&z=0&im=12&ts=1&st=20200110090117&et=20200110160617&speed=130&motion=loop&map=1&lat=0&opacity%5B0%5D=1&hidden%5B0%5D=0&pause=0&slider=-1&hide_controls=0&mouse_draw=0&follow_feature=0&follow_hide=0&s=rammb-slider&sec=conus&p%5B0%5D=band_10&x=5000&y=5000 Alternately, also available here: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/10jan20/band10&loop_speed_ms=60   ALPW Loop: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/10jan20/alpw&loop_speed_ms=120  

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Elevated Mixed Layer event on 16 December 2019

Posted on December 16, 2019 by dbikos

On 16 December 2019, SPC issued an enhanced risk of severe thunderstorms for portions of Louisiana and Mississippi: One of the favorable ingredients for this severe weather setup was the presence of an Elevated Mixed Layer (EML) which is depicted … Continue reading →

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21 October 2019 – nighttime detection of fog and outflow boundaries

Posted on October 21, 2019 by dbikos

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 →

Posted in Aviation Weather, Ceilings, Convection, Fog, Severe Weather, Visibility | Comments Off on 21 October 2019 – nighttime detection of fog and outflow boundaries