The following sections have been updated in the past 7 days

-- SEVERE STORMS (2 updated events, 3 new images) --

TROPICAL CYCLONE AVA Tropical cyclone Ava swirled in the Indian Ocean near Madagascar in early January 2018

* Tropical Cyclone Ava Strikes Madagascar (Image from Jan 5, 2018; Posted Jan 5, 2018)
    https://earthobservatory
nasa
gov/NaturalHazards/view
php?id=91540&src=nha

2018 NOR'EASTER The beginning of 2018 brought a powerful Nor'easter to the United States

* Snow in Savannah (Image from Jan 4, 2018; Posted Jan 5, 2018)
    https://earthobservatory
nasa
gov/NaturalHazards/view
php?id=91537&src=nha

* Powerful Winter Storm Pummels the U
S
 East Coast (Image from Jan 4, 2018; Posted Jan 5, 2018)
    https://earthobservatory
nasa
gov/NaturalHazards/view
php?id=91529&src=nha

-- WATER COLOR (1 updated event, 1 new image) --

BLOOMS IN THE SOUTH ATLANTIC As the southern hemisphere transitioned into spring, several large phytoplankton blooms emerged and lingered in the ocean

* South Atlantic Abloom (Image from Dec 28, 2017; Posted Jan 6, 2018)
    https://earthobservatory
nasa
gov/NaturalHazards/view
php?id=91521&src=nha

-- TEMPERATURE EXTREMES (1 updated event, 1 new image) --

COLD SNAP IN THE NORTHEAST Blasts of Arctic air spilled into the Midwest and Northeast in December 2017 and January 2018

* It's Cold—And Hot—in North America (Image from Jan 2, 2018; Posted Jan 3, 2018)
    https://earthobservatory
nasa
gov/NaturalHazards/view
php?id=91517&src=nha

-- UNIQUE IMAGERY (2 updated events, 2 new images) --

NEW YEAR'S NIGHT Skies were clear as the northeast U S rang in the New Year

* New Year's Night (Image from Jan 1, 2018; Posted Jan 2, 2018)
    https://earthobservatory
nasa
gov/NaturalHazards/view
php?id=91513&src=nha

MESOVORTEX OVER LAKE MICHIGAN As 2017 came to a close, satellites acquired imagery of a mesovortex forming over Lake Michigan

* A Mesovortex Over Lake Michigan (Image from Dec 31, 2017; Posted Jan 2, 2018)
    https://earthobservatory
nasa
gov/NaturalHazards/view
php?id=91510&src=nha

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