A severe hail-producing thunderstorm moved over northeast Nebraska before noon on 22 September (SPC Storm Reports). The region hit was just south of a Marginal Risk of Severe Weather (The update at 1630 UTC included the region of severe weather). The GOES-13 visible animation, above, shows the initial development occurring along a subtle cloud line aligned mostly east-west.The NOAA/CIMSS ProbSevere model produces... Read More
A tornado was reported near Yuma, CO, (SPC Storm Reports) at 1910 UTC on 27 May 2015. GOES-14 was in SRSO-R scanning mode, and a storm-centered animation of the visible imagery (0.626 µm) is shown above (Warning: the animation above is 270M; click here for an mp4, or view it on YouTube). Note that GOES-14 produces... Read More
GOES-14, in SRSO-R mode, animation, above (YouTube video), captured the development of an isolated cell over northeastern Andrews County in west Texas. Intersecting boundaries helped force the isolated convection, above, that was strong enough to produce a signal in the NOAA/CIMSS ProbSevere product, with ProbSevere peaking at around 15%. ... Read More
Severe thunderstorms moved across central Texas on April 24th (Link). The NOAA/CIMSS ProbSevere product can be used with storms like this to alert a forecaster to when severe weather will develop. ProbSevere output tells you the probability that a given storm cell will first produce severe weather in the next... Read More
