Visible imagery after sunrise on 3 June 2015 over Kansas, above, shows the parallel lines of low clouds that characterize a bore feature. As the bore penetrated southward, winds initially shifted before becoming more variable. Bore propagation requires the presence of an inversion, and 1200 UTC Soundings from both Dodge City... Read More
GOES-14 0.62 µm visible imagery, above, (here as an mp4, and here as a very large (220+ megabytes) animated gif) shows the development of convection over eastern North Carolina in a region of slight risk according to SPC (below). ==================================================================================Mesoscale Discussion #713 from SPC, below, referenced the Super-Rapid scan imagery:MESOSCALE DISCUSSION 0713 NWS STORM PREDICTION CENTER NORMAN... Read More
Thunderstorms began to develop across West Texas during the afternoon hours on 19 May 2015, along and ahead of an eastward-moving dryline. One of the storms went on to produce a few brief tornadoes, and hail as large as 3.0 inches in diameter (SPC storm reports). Different views of this storm were provided by... Read More
Atmospheric Bores form in stable air and create horizontal cloud bands that propagate perpendicular to the along-band direction. The feature seen above in GOES-13 visible imagery formed in stable air south of a High Pressure system that pushed a backdoor cold front into New England (surface analyses). The southern edge of... Read More
