Cold air moving across the warm water within reservoirs along the Missouri River in South Dakota has aided the formation of "river effect" cloud bands - evident in @NOAASatellites #GOESeast images - which were moving SE: geosphere.ssec.wisc.edu/#pla…; @NWSAberdeen @NWSSiouxFalls #SDwx

UW-Madison CIMSS

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#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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RT @NWSRapidCity: The "hot spots" and smoke plumes from two prescribed burns in the Black Hills (Long Draw west of Hill City and Witch southwest of Pringle) showing up well this afternoon on #GOES16 satellite. The smoke plume from the Long Draw is directly overhead Rapid City at this time. #sdwx

NOAA Satellites

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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

NOAA Satellites

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#GOESEast True Color RGB showing widespread Horizontal Convective Rolls across central/eastern SD, highlighting areas of blowing snow - with more pronounced "river-effect" HCRs from unfrozen reservoirs: geosphere.ssec.wisc.edu/#pla…; @NWSAberdeen @NWSSiouxFalls @NWSRapidCity #SDwx

UW-Madison CIMSS

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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

UW-Madison CIMSS

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1-minute Mesoscale Sector @NOAASatellites #GOESEast Visible & Infrared images (w/ time-matched plots of SPC Storm Reports) showed t-storms that produced large hail & damaging winds in parts of #WYwx/#SDwx/#NEwx: https://t.co/CQhjGCIq02 @NWSRapidCity @NWSCheyenne @NWSAberdeen https://t.co/LwdE4RLZ3L

UW-Madison CIMSS

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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

UW-Madison CIMSS

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Thermal signatures of the still-unfrozen water of the Lake Oahe reservoir (along the Missouri River, in central South Dakota) were evident in #GOESEast Infrared, Low-level & Mid-level Water Vapor images. Also a brief period of lake effect snow at Pierre KPIR.
@NWSAberdeen #SDwx https://t.co/wZ3ZqTpmEo

UW-Madison CIMSS

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RT @NWS: ⚠️Severe thunderstorms expected over parts of the northern Plains this afternoon and tonight...

* LOCATIONS...
Eastern South Dakota
Southwest Minnesota

* HAZARDS...
Widespread damaging winds, some hurricane force
A couple of tornadoes
Isolated large hail

Read More: https://t.co/EVRUgBnzuB

7:30am CDT #SPC Public Severe Weather Outlook #PWO concerning #mnwx #sdwx https://t.co/mx539T0MQh https://t.co/W8NWBgN4tz - NWS Storm Prediction Center

NOAA

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