Category Archives: Severe Weather

General questions and answers concerning Severe Thunderstorms.

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 →

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Dryline Bulges Identified in GOES-16 Split Window Difference on 30 April 2019

Posted on May 7, 2019 by dbikos

By Dan Bikos and Lewis Grasso During the afternoon of 30 April 2019, a dryline mixed eastward from New Mexico into the Texas panhandle, as seen in this GOES-16 visible loop with METARs overlaid: http://rammb.cira.colostate.edu/templates/loop_directory.asp?data_folder=training/visit/loops/30apr19/vis_metars&loop_speed_ms=60 Thunderstorms initiate along various segments … Continue reading →

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

Posted on May 1, 2019 by dbikos

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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NCC monitoring severe weather during the nighttime

Posted on April 18, 2019 by Jorel Torres

Monitoring severe weather during the nighttime can be challenging since GOES-16/17 is limited to infrared imagery during the overnight hours. In complement to geostationary data sets, polar-orbiting satellite data can be utilized, specifically the Near-Constant Contrast (NCC) product. For unfamiliar … Continue reading →

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Hail damage swaths from severe storms over the High Plains as viewed from satellites during July 2018

Posted on October 2, 2018 by dbikos

By Louie Grasso, Dan Bikos, Jorel Torres and Ed Szoke During the summer of 2018 over the High Plains, several significant severe storms occurred.  Several hailstorms moved southward over the Central High Plains and produced noticeable hail swaths and damage … Continue reading →

Posted in Convection, GOES R, Hail, POES, Satellites, Severe Weather | Comments Off on Hail damage swaths from severe storms over the High Plains as viewed from satellites during July 2018