Tag Archives: clouds

MARCI weather report, May 28-June 3, 2018

The most prominent weather events last week were two large regional dust storms over the northern hemisphere of Mars. The large arcuate-shaped dust storm, reported the previous week, propagated eastward over the northern mid-latitudes of Utopia Planitia before abating. By … Continue reading

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MARCI weather report, May 21-27, 2018

Shortly after the arrival of the Northern Autumnal Equinox last week, two large arcuate-shaped dust storm fronts swept eastward from Acidalia to Deuteronilus and further eastward towards the plains of Utopia. Looking to the southern highlands, dust lifting activity was … Continue reading

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MARCI weather report, May 14-20, 2018

Last week on Mars, weather patterns were fairly typical for this time of martian year. A large dust storm was observed over Cimmeria and Sirenum at the beginning of the week. In the following sols, the dust lifting quickly abated … Continue reading

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MARCI weather report, May 7-13, 2018

Dust-lifting activity continued at mid-to-high latitudes for both hemispheres this past week. Looking to the northern lowlands, a mixture of dust storms and water-ice clouds propagated eastward, signaling further development of the north polar hood. Large local-scale dust storms occurred … Continue reading

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MARCI weather report, April 23-29, 2018

Weather patterns this past week were very similar to those reported the previous week. A new regional dust storm kicked up in the southern mid-to-low latitudes of Promethei-Cimmeria. It extended northeast over Gusev Crater, the final resting place of the … Continue reading

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MARCI weather report, April 16-22, 2018

A regional dust storm kicked up in the southern mid-to-low latitudes of Promethei-Cimmeria this past week. Dust lofted by the storm was transported eastward as far as western Noachis. Additional local storm activity was observed in Hellas Basin, as well … Continue reading

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MARCI weather report, April 9-15, 2018

Dust storm activity continued along the seasonal south polar ice cap edge of Mars this past week. Equatorward of the southern seasonal cap edge, local-scale dust storms were observed over Noachis and Cimmeria. At the beginning of the week, a … Continue reading

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MARCI weather report, April 2-8, 2018

Martian weather remained quite active last week. Several small polar storms developed into a regional dust storm over the northern plains. Local-scale storms were observed along the seasonal south polar cap edge from Sirenum to Cimmeria. Looking to the mid-to-low … Continue reading

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MARCI weather report, March 26-April 1, 2018

Dusty conditions across much of the martian southern highlands last week. Several short-lived local-scale dust storms were observed along the seasonal south polar ice cap edge, while another storm north of Argyre pushed northeast into Valles Marineris. Dust lofted by … Continue reading

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THEMIS: Polar winds streaming off the ice cap

THEMIS Image of the Day, April 5, 2018. This VIS image shows ‘streamers’ of clouds created by katabatic winds at the north polar cap. Katabatic winds are created by cold air sinking at the pole and then speeding along the … Continue reading

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