UW-Madison CIMSS

Happy #SpringEquinox2026! Here is Fall 2025 Equinox to Spring 2026 Equinox full disk images from @NOAASatellites #GOES19 in CIMSS Natural Color (almost) every day at noon satellite time!

Cyclone #Narelle as seen by @JMA_kishou's #Himawari9 in 2.5min Infrared Imagery as it makes landfall along Australia's York Peninsula coast as a Category 4 storm just after 2100 UTC on March 19, 2026. More on the CIMSS Blog: cimss.ssec.wisc.edu/satellite-blog… and check @BOM_au for updates

1-minute Visible and IR images from @NOAASatellites #GOESEast included time-matched plots of SPC Storm Reports: Thunderstorms produced tornadoes and large hail across northern Illinois March 10 (6" diameter? Needs verification, IL record is 4.75"). @NWSChicago @NWSLincolnIL #ILwx

Visible and Infrared images from @NOAASatellites #GOESEast (#GOES19) showed an isolated supercell thunderstorm that produced the earliest EF3-rated tornado on record in Lower Michigan (on Friday, March 6). More on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-blog… @NWSIWX #MIwx

The #TotalLunarEclipse2026 from 2 nights ago as seen by @NOAASatellites day/night band imagery from #SuomiNPP #NOAA20 & #NOAA21. At night we usually see moonlight reflecting off clouds but here we see that go away during the eclipse. More: cimss.ssec.wisc.edu/satellite-blog…

Infrared and water vapor band images from @NOAASatellites #GOESWest (#GOES18) showed the development of a mountain wave cloud south of the Brooks Range in Alaska yesterday (on March 1). More on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-blog… #AKwx

True color images yesterday (2/25) from @NOAASatellites #GOESEast show aircraft condensation trails (or "glaciation trails") drifting across southern Lake Michigan. More info on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-blog…

Water Vapor imagery from @NOAASatellites #GOESEast (#GOES19) showed the evolution of the powerful record-setting Nor'easter (#blizzard #blizzard2026) during the February 22-23 period -- more on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-blog…

Rare Feb. tornadoes in the midwest Thurs night (2/19). @NOAASatellites #GOES19 loop shows CIMSS ProbSevere on top of IR window & radar. Red polygons show @NWSIndianapolis issued tornado warnings; contours are ProbSevere-ID'd severe WX areas. Blog: cimss.ssec.wisc.edu/satellite-blog…

1-min imagery from @NOAASatellites #GOES19 showed the Ranger Road Fire's thermal signature - which burned 145,000 acres as it made a rapid wind-driven run from the Oklahoma Panhandle across the border into southern Kansas (17 February). More on the Blog: cimss.ssec.wisc.edu/satellite-blog…

Infrared images from @NOAASatellites #SuomiNPP & #NOAA21 #VIIRS showed the opening of very long ice leads in the Beaufort Sea between Feb 10-12. More on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-blog…

There's more now on the CIMSS Satellite Blog of #Gezani, with more animations and data, including this sea surface temperature figure. cimss.ssec.wisc.edu/satellite-blog…

Infrared window images from @eumetsat #Meteosat9 show Cyclone #Gezani making landfall on the east coast of Madagascar (near the city of Toamasina, station FMMT) as a Category 3 storm on February 10, 2026. Looks like the eyewall crossed the coastline around 15:30-15:45 UTC.

@eumetsat ... And here is the animation of the IR Window images from @eumetsat #Meteosat9 as #Gezani makes landfall on Madagascar on February 10, 2026.

A Norlun trough aided in the development of convective cloud bands, enhancing snowfall over parts of MA, CT and RI over the weekend -- as seen in @NOAASatellites #GOESEast Infrared images. More info on the CIMSS Satellite Blog: cimss.ssec.wisc.edu/satellite-blog… @NWSBoston

Solar flare this morning as seen by the @NOAASatellites #GOES19 Solar UltraViolet Imager (#SUVI). You can see realtime SUVI images at the @UWSSEC GeoBrowser: ssec.wisc.edu/data/geo/#/ani…

True Color RGB images from @NOAASatellites #GOESEast / #GOES19 showed that some of the fresh snow cover across Georgia, South Carolina and North Carolina began to melt during the day (Feb 1, 2026). More on the CIMSS Blog:cimss.ssec.wisc.edu/satellite-blog… #GAwx #SCwx #NCwx

3 days of Water Vapor imagery from @NOAASatellites #GOESEast w/hourly surface WX type - showing the development of a winter storm that produced up to 19.5" of snow & wind gusts up to 64 mph in eastern North Carolina. @NWSMoreheadCity More on the blog: cimss.ssec.wisc.edu/satellite-blog…

1-minute @NOAASatellites #GOESEast / #GOES19 True Color RGB images showed the motion of nearshore ice in southern Lake Michigan (along and just off the coast of Wisconsin and Illinois), with land-fast ice along the coast of Indiana. #playing:true;coordinate:-983481,4042707;zoom:8.6;coverage:radm2;num_frames:496;frame_rate:30;start_time:2026-01-28T13:45:55Z;timeframe:Start%20Time" target="_blank" rel="nofollow noopener">geosphere.ssec.wisc.edu/#playing:true;…;

As clouds cleared in the wake of the departing storm on 26-27 Jan, large swaths of significant ice accrual (from freezing rain and/or sleet) showed up as areas of darker black on @NOAASatellites #GOES19 Near-IR "Snow/Ice" band images. More on the blog: cimss.ssec.wisc.edu/satellite-blog…