A severe weather threat is setting up for this weekend in portions of the South, with the potential for damaging winds and large hail, although an isolated tornado threat cannot be ruled out.

Winter is making one of its final stands in the Great Lakes and Northeast this week as a low pressure system is on track to bring gusty winds, rain and snow to the region. The rush of cold air could cause wind chills in the teens and twenties for cities like Boston, Chicago and Minneapolis. The transition between rain and snow will be pretty messy, so lots of areas could see some wintry mix, freezing rain and ice, but most of the snow will stay further inland and north of the I-90 corridor. Rainy, dreary weather will also stretch across much of the Ohio Valley and Mid-Atlantic to kick off the first week of astronomical spring.

An iceberg broke off of the Antarctic ice sheet, and as scientists studied the deep ocean where the ice once was, they found ecosystems teeming with sea spiders, corals, ice fish and possibly dozens of new species. The discovery could provide new information about how deep-sea life changes as the planet warms.

If you love the sunshiney days of summer, there’s one city that beats out all the others as the sunniest. This U.S. city will keep giving you hours of sunshine way beyond summer. Watch this video to learn why the World Meteorological Organization picked it for the number one spot.

Two tornadoes struck the same location in Mississippi on March 15. Not only did they hit the same place, they struck within 41 minutes of each other. The National Weather Service out of Jackson, Mississippi, noted that the first tornado was an EF-4 that originated out of Kentwood, Louisiana. The second twister originated north of Bassfield, Mississippi, and crossed the first tornado’s path.