A massive storm system will impact the Central and Southern U.S. over the next few days. Widespread heavy snow with blizzard conditions and a zone of wintry mix is possible from the north-central High Plains to the Upper Midwest. Meanwhile, in the warm sector of the storm, a severe weather event with all hazards is possible in the southern Plains and Lower Mississippi Valley to Florida.
A powerful storm system with heavy mountain snow and heavy lower-elevation rain is affecting the U.S. West, potentially bringing as much as 150 cm (5 feet) of snow accumulation to California. Flooding and debris flows will be possible on burn scars in southern California.
Earthquake swarm under Takawangha volcano, Alaska continues since mid-November. The Aviation Color Code remains at Yellow and the Volcano Alert Level at Advisory. The last known eruption at this volcano took place in 1550 CE (VEI unknown).
The eruption of Mauna Loa volcano that started on November 28, 2022, in its Northeast Rift Zone continues, with several fissures and lava flows active.
A severe weather outbreak hit the Southern U.S. on November 29, 2022, bringing strong tornadoes, very large hail, and severe with gusts across parts of the lower to mid-Mississippi Valley, Mid-South, and parts of the Southeast. A few long-track strong tornadoes remain possible before the event is over.
A new eruption has begun at Mauna Loa — the largest active volcano on our planet — on November 28, 2022. As a result, the Aviation Color Code was raised to Red. The last eruption at this volcano took place in 1984 (VEI 0).
Moderate to major impacts are likely across much of southeast New Mexico and parts of West Texas through early this weekend due to heavy snow and gusty winds.
A new official storm total of 2.06 m (81.2 inches) has been recorded in Hamburg, Erie County, New York from November 16 to 20, 2022.
A major lake effect snow event produced record-breaking snow amounts around the Great Lakes over the past 2 days. The storm buried roads and vehicles and caused the deaths of at least 3 people.
Seismic activity under Takawangha volcano, Alaska increased over the past couple of days and intensified on November 18, 2022, forcing the Alaska Volcano Observatory (AVO) to raise the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory.
