#GOESEast Day Cloud Phase distinction imagery is sporting a new color that we haven't seen in a while. The green in the Dakotas (and environs) indicates fresh snowfall with our current cold air outbreak. This RGB feature helps distinguish snow cover from clouds. ❄️#NDwx #SDwx

UW-Madison CIMSS

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Interesting case of long-range transport of the #Klyuchevskoy volcanic cloud - which shows up as shades of blue in @NOAASatellites #GOESeast SO2 RGB (suggestive of ash) & shades of pink to yellow in Ash RGB (suggestive of an ash/SO2 mix): cimss.ssec.wisc.edu/satellit… #MTwx #NDwx

H/t to @ncarletta for pointing out the SIGMET (~1430Z-1830Z) by @NWSAWC for volcanic ash over eastern North Dakota and northwest Minnesota.

Can see SO2/ash signal (bright yellow in Ash RGB) on satellite upstream moving out of SK into ND. #ndwx #mnwx - Carl Jones

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RT @NWSBismarck: Are you interested in secret codes? Have you heard of the "silk dress cryptogram"? Check out this brand-new article from @NOAA to learn how a secret code found in a dress involves North Dakota and weather forecasting in the 1880s! 🤓 #NDwx #WxHistory noaa.gov/heritage/stories/cr…

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RT @NWSGrandForks: As low clouds and fog peel away, clear skies allow @NOAASatellites 🛰️to view snow and ice cover from our recent ice storm over portions of the Dakotas.

Darker reds signal ice, with lighter reds signaling snow (in this case snow over ice near SD/ND border). #ndwx #sdwx

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A combination of convective snow showers & strong N winds yesterday caused the @NWSGrandForks airport visibility to be reduced by a combination of blowing snow & blowing dust - #GOESEast Dust RGB images highlighted the dust (brighter shades of pink): https://t.co/p6vWdssilZ #NDwx https://t.co/VsmVxnA77S

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Update on the #BCWildfire #smoke - #GOESEast True Color RGB images showed a dense plume moving S across #MTwx, #NDwx, #SDwx and #MNwx: https://t.co/MYBYPXRrKJ; https://t.co/NwSRauq5cG

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Day Cloud Phase Distinction RGB images from @NOAASatellites #GOES19 (Preliminary/Non-operational) showed lake effect clouds (streaming SE of Lake Sakakawea) which produced brief periods of light snow at Hazen and Bismarck. Snow cover appears as shades of green. @NWSBismarck #NDwx https://t.co/QCfI24G4UI

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RT @UWCIMSS: Day Cloud Phase Distinction RGB images from @NOAASatellites #GOES19 (Preliminary/Non-operational) showed lake effect clouds (streaming SE of Lake Sakakawea) which produced brief periods of light snow at Hazen and Bismarck. Snow cover appears as shades of green. @NWSBismarck #NDwx https://t.co/QCfI24G4UI

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Day Snow Fog RGB images from #GOES19 (*Preliminary/Non-operational*) showed horizontal convective rolls that are signature of blowing snow -- several Snow Squall Warnings were issued for parts of #NDwx/#MNwx/#WIwx. @NWSGrandForks @NWSTwinCities @NWSduluth @NWSAberdeen https://t.co/iZ7haLH4lY

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Nighttime Microphysics RGB + daytime True Color RGB images from @NOAASatellites #GOESEast revealed a few cloud plumes originating from power plants south of Lake Sakakawea in western North Dakota: https://t.co/yIsuG0MlVe; @NWSBismarck #NDwx https://t.co/x80xFvb1J9

UW-Madison CIMSS

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5-minute @NOAASatellites #GOES19 (Preliminary/Non-operational) Blowing Snow RGB images showed Horizontal Convective Roll clouds associated with blowing snow across parts of eastern North Dakota and western Minnesota. #NDwx #MNwx https://t.co/rbfCsQKV7F

UW-Madison CIMSS

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RT @UWCIMSS: 5-minute @NOAASatellites #GOES19 (Preliminary/Non-operational) Blowing Snow RGB images showed Horizontal Convective Roll clouds associated with blowing snow across parts of eastern North Dakota and western Minnesota. #NDwx #MNwx https://t.co/rbfCsQKV7F

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Blowing Snow RGB images from @NOAASatellites #GOESEast highlighted Horizontal Convective Roll (HCR) clouds that signify areas where blowing snow was likely occurring across parts of #MTwx/#NDwx/#MNwx/#SDwx. @NWSGlasgow @NWSBismarck @NWSGrandForks @NWSTwinCities @NWSAberdeen https://t.co/ZBYyw3dAK4

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Near-Infrared "Snow/Ice" images from #GOESEast suggest that Bismarck KBIS (and perhaps Glen Ullin KD57) may have received brief periods of light snow due to cloud plumes emanating from power plants located south of Lake Sakakawea.
@NWSBismarck #NDwx https://t.co/5YMF0MoUnb

UW-Madison CIMSS

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