During the late afternoon and early evening, GOES-14 Visible (0.63 µm) images (below; also available as a large 59 Mbyte animated GIF) revealed additional thunderstorms which produced hail and damaging winds across eastern Missouri and southern Illinois (SPC storm reports). These storms fired along an outflow boundary left in the wake of another mesoscale convective system (MCS) that moved through the region earlier in the day.Side note: there was a planned outage of GOES-14 SRSO-R imagery from 1059-2119 UTC. During this time, the GOES-13 (GOES-East) satellite had been placed into Rapid Scan Operations (RSO) mode, providing images as frequently as every 5-7 minutes. Visible (0.63 µm) images (below) showed the mesoscale convective system that produced hail as large as 4.0 inches in diameter in the St. Louis, Missouri area. Finally, late in the day another MCS developed in North Texas, just west of the Dallas/Fort Worth area. GOES-14 Visible (0.63 µm) images with parallax-corrected SPC storm reports (below; also available as a large 54 Mbyte animated GIF) showed the large hail and damaging winds produced by this storm. One feature of interest was the “storm-top plume” that emanated from the largest cluster of overshooting tops, and was blown northeastward.
SRSO-R) mode for part of the day on 11 May 2016; Infrared Window (10.7 µm) images (above) showed the nocturnal development of a severe thunderstorm ahead of an approaching occluded front (surface analyses) that dropped large amounts of hail in the northwestern section of Omaha, Nebraska (station identifier KOMA), stripping trees of foliage and clogging some city streets (even requiring the use of snow plows and shovels: photo 1 | photo 2). The storm began to exhibit an “enhanced-V” signature just prior to the time that it started producing large hail in Omaha. Note: the plotted location of the SPC storm reports on this animation (and all animations on this blog post) have been parallax-corrected, moving them slightly north-northeastward to match the location of cloud top features having a mean altitude of 10 km. The letters UNK after a W wind report denotes “unknown intensity”.The GOES-14 satellite remained in Super Rapid Scan Operations for GOES-R (
SPC storm reports) developed across Nebraska, Kansas and Oklahoma in the warm sector of a surface low centered over western Kansas (surface analyses) on 09 May 2016. The GOES-14 satellite was operating in Super Rapid Scan Operations for GOES-R (SRSO-R) mode, providing images at 1-minute intervals; Visible (0.63 µm) images with overlays of SPC storm reports covering Nebraska/Kansas (above; also available as a large 133 Mbyte animated GIF) and Kansas/Oklahoma (below; also available as a large 130 Mbyte animated GIF) showed the development of the convection during the 1845 UTC to 0115 UTC (3:45 pm to 8:15 pm local time) period. The first EF4-rated tornado of the 2016 season (which was responsible for 1 fatality) occurred near Katie, Oklahoma; hail was as large as 4.25 inches in diameter Nebraska and 4.0 inches in Oklahoma.Widespread severe thunderstorms (
SRSO-R mode on 23 April – 24 April 2016, providing 1-minute Visible (0.63 µm) images (above; also available as a large 115 Mbyte animated GIF) which showed the development of convection over far northern Utah/Colorado, much of Wyoming, southern Montana, and far western South Dakota during the daytime hours of 23 April. Some of this convection produced moderate to heavy rainfall (and some accumulating snowfall) across Wyoming and southern Montana.GOES-14 was in
Taking a closer look at the Black Hills of South Dakota with GOES-14 Visible (0.63 µm) and Shortwave Infrared (3.9 µm) images (below; also available as a large 151 Mbyte animated GIF), one can see intermittent smoke plumes from the Storm Hill Fire (located near the center of the red circle) on the Visible images during the late afternoon and early evening hours, with the continuation of a fire “hot spot” signature (dark black to yellow color enhancement) on the Shortwave Infrared images into the nighttime hours. The maximum shortwave IR brightness temperature was 324 K at 0424 UTC (10:24 pm local time); the fire hot spot became obscured by dense cloud cover after about 0600 UTC. Highways are plotted in dashed magenta lines on the images.
Hat tip to Jim Strain, who sent out the Tweet:
— Jim Strain (@jim_strain) April 24, 2016
SRSO-R mode on 21 April 2016, providing 1-minute Visible (0.63 um) images (above; also available as a large 253 Mbyte animated GIF) of the clouds associated with an occluded surface low (surface analyses) in the Upper Midwest. Near the end of the day, thunderstorms in Illinois produced hail of 1.00 and 1.25 inches in diameter (SPC storm reports | HWT Blog post 1 | HWT Blog post 2).The GOES-14 satellite was in