upper

• Official

Strong to Severe Storms in the Ohio Valley and Mid-Atlantic; Snow in the Upper Great Lakes

• Official

Strengthening Storm in the Upper Great Lakes; Thunderstorms in the Ohio Valley and Mid-Atlantic

• Official

Severe Weather Threat in the Southern U.S.; Snow in the Upper Midwest and Upper Great Lakes

• Official

Blizzard Conditions from the Central Plains to the Upper Midwest; Critical Fire Weather in the Southern Plains

• Official

Extremely Critical Fire Weather in the Southern Plains; Heavy Snow and Possible Blizzard Conditions in the Central Rockies and Upper Midwest

• Official

Elevated to Critical Fire Weather Concerns and Strong Winds for the Central U.S.; Snow Across the Upper Great Lakes and Northeast

• Official

Winter Storm to Track From the West Coast Across the Upper Midwest & Northeast Through this Weekend

• Official

Volcanic explosion penetrates both upper atmosphere and upper crust around the globe

The January 15, 2022 satellite view of the small, uninhabited South Pacific island known as Hunga Tonga-Hunga Ha‘apai, from NOAA's Geostationary Operational Environmental…