The Lewotobi Laki-laki volcano in Indonesia erupted shortly before 0940 UTC on 17 June 2025 — and the radiometrically-retrieved Ash Height product from the NOAA/CIMSS Volcanic Cloud Monitoring site (above) indicated that ash reached altitudes of 16-18 km.The corresponding Ash Loading product (below) showed that there were initially high levels of ash loading,... Read More
Himawari-9 Ash Height product [click to play MP4 animation]
The corresponding Ash Loading product (below) showed that there were initially high levels of ash loading, which then decreased as the volcanic cloud expanded across the region.
Himawari-9 Ash Loading product [click to play MP4 animation]
Himawari-9 Ash RGB images [click to play animated GIF | MP4]
NOAA-20 VIIRS Day/Night Band image [click to enlarge]
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5-minute CONUS sector GOES-19 (GOES-East) “Clean” Infrared Window (10.3 µm) images and “Red” Visible (0.64 µm) images with an overlay of the FDCA Fire Mask derived product (above) showed that the Trout Fire in southwest New Mexico produced a pyrocumulonimbus (pyroCb) cloud late in the day on 14 June 2025. The pyroCb cloud... Read More
5-minute GOES-19 Red Visible (0.64 µm) images with an overlay of the Fire Mask derived product (left) and Clean Infrared Window (10.3 µm, right) images, from 1606 UTC on 14 June to 0201 UTC on 15 June [click to play MP4 animation]
The coldest pyroCb cloud-top IRBT was -44.71ºC at 0021 UTC on 15 June, with a corresponding Cloud Top Height derived product value of 37510.62 ft (below).
GOES-19 Clean Infrared Window (10.3 µm) image with a cursor sample of the coldest cloud-top infrared brightness temperature (white) along with the corresponding Cloud Top Height derived product (green) at 0021 UTC on 15 June [click to enlarge]
Plot of rawinsonde data from El Paso, Texas at 0000 UTC on 15 June [click to enlarge]
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GOES-19 Red Visible (0.64 µm) images + Fire Mask derived product (left) and Clean Infrared Window(10.3 µm, right) images, with an overlay of GOES-19 GLM Flash Extent Density (large light-purple pixels) and Flash Points (white dots) at 2311 and 2316 UTC on 14 June [click to enlarge]
GOES-19/GOES-East Red Visible (0.64 µm) images + Fire Mask derived product (left) and Clean Infrared Window(10.3 µm, right) images, with an overlay of GOES-18/GOES-West GLM Flash Extent Density (large light-purple pixels) and Flash Points (white dots) at 2311, 2316 and 2326 UTC on 14 June [click to enlarge]
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5-minute GOES-19/GOES-East True Color RGB images, from 2101 UTC on 14 June to 0141 UTC on 15 June [click to play MP4 animation]
10-minute GOES-18/GOES-West True Color RGB images, from 2100 UTC on 14 June to 0130 UTC on 15 June [click to play MP4 animation]
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As the Trout Fire continued to burn into the subsequent nighttime hours, its bright glow in northeastern Grant County was very apparent in a NOAA-20 VIIRS Day/Night Band (0.7 µm) image valid at 0847 UTC or 2:47 AM MST (below).
NOAA-20 (mislabeled as NPP) VIIRS Day/Night Band (0.7 µm) image valid at 0847 UTC on 15 June [click to enlarge]
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10-minute Full Disk scan GOES-19 (GOES-East) True Color RGB images along with the Aerosol Optical Depth (AOD) derived product from the CSPP GeoSphere site (above) displayed a plume of blowing dust — which was originating from salt flats along the northern edge of Laguna Mar Chiquita in northern Argentina — being transported south-southwestward on 12... Read More
10-minute GOES-19 True Color RGB images (left) and Aerosol Optical Depth derived product (right), from 1500-2000 UTC on 12 June [click to play animated GIF | MP4]
GOES-19 Aerosol Optical Depth images that included plots of surface reports (below) showed that northeast winds at Cordoba (the METAR site just west of the blowing dust plume) were gusting to 27 knots (31 mph) at 1800 UTC.
10-minute GOES-19 Aerosol Optical Depth derived product with plots of METAR surface reports (cyan), from 1600-2000 UTC on 12 June [click to play MP4 animation]
10-minute GOES-19 Dust Detection derived product with plots of METAR surface reports (cyan), from 1600-2000 UTC on 12 June [click to play MP4 animation]
CHM surface analyses at 1200 UTC on 12 June and 0000 UTC on 13 June [click to enlarge]
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10-minute Full Disk scan GOES-18 (GOES-West) True Color RGB and Near-Infrared “Cirrus” (1.37 µm) images from the CSPP GeoSphere site (above) showed a plume of Canadian wildfire smoke over parts of Alaska on 11 June 2025. This plume of smoke aloft was initially drifting westward across Yukon and Interior Alaska early in... Read More
10-minute GOES-18 True Color RGB images (top) and Near-Infrared “Cirrus” (1.37 µm) images (bottom), from 1200 UTC on 11 June to 0500 UTC on 12 June [click to play animated GIF | MP4]
GOES-18 Visible images with plots of Ceiling/Visibility (below) confirmed that this smoke remained aloft, with no restriction of surface visibility at any of the sites beneath the plume (visibility in miles is the bottom number, just below the circles listing cloud ceiling values at each site).
10-minute GOES-18 Red Visible (0.64 µm) images with hourly plots Ceiling/Visibility (cyan), from 0900 UTC on 11 June to 0400 UTC on 12 June [click to play MP4 animation]
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