Just three days after a powerful atmospheric river (AR) event brought heavy rain to parts of California, leaving at least 2 people dead and nearly 10 000 under evacuation orders, another AR will reach the region late Monday, March 13, 2023, bringing more risk of flash flooding and heavy mountain snow through Wednesday.
A dangerous excessive rainfall event, brought by a powerful atmospheric river, is underway across much of Central California today. Areal rainfall totals of 100 – 230 mm (4 – 9 inches) through today, atop areas with saturated soil and deep snowpack are expected to cause widespread and severe flooding impacts, particularly in the High Risk area.
Active seismic activity beneath the Tanaga and Takawangha volcanoes on Tanaga Island, Alaska, approximately 8 kilometers (5 miles) apart, has increased the potential for eruption, according to official reports from the Alaska Volcano Observatory (AVO).
A new atmospheric river (AR) event is forecast to impact California on Thursday, March 9, 2023, bringing with it considerable rainfall through Saturday, March 11. Forecast models are predicting that the incoming AR will reach AR4 (on a scale of 1 – 5) ranking in the Bay Area, with an 80% chance of being at least an AR3. A second AR landfall is possible early next week.
In response to increased seismicity beneath the Tanaga volcano detected on March 6 and 7, 2023, the Alaska Volcano Observatory (AVO) raised the Aviation Color Code to Yellow and the Volcano Alert Level to Advisory.
A powerful winter storm swept across the U.S. over the past couple of days, causing death and destruction in multiple states. At least 13 people lost their lives as severe weather, high winds, and flooding hit the South and Midwest. At the same time, winter-weary Northeast and Midwest residents were digging out from heavy snowfall. Thousands of businesses closed, flights were canceled, and more than 1.2 million customers — or approximately 3 million people, were left without power.
Tornadoes and high winds caused damage and widespread power outages Thursday, March 2, 2023, in Texas and Louisiana, including Dallas-Fort Worth and Shreveport. At the height of the storm, there were more than 350 000 customers without power in Texas, with more than half of them in the Dallas-Fort Worth area where winds up to 130 km/h (80 mph) were recorded.
A powerful winter storm has wreaked havoc across California, leaving some residents trapped inside their homes due to heavy snowfall. The storm has prompted Gov. Gavin Newsom to declare a state of emergency in 13 counties, including hard-hit San Bernardino County.
A large storm system brought a rare snowfall to California and thunderstorms to the Southern Plains in late February 2023. The system also generated strong winds that caused a massive amount of dust to be lofted into the air, darkening skies across northwestern Texas, northern Mexico, and eastern New Mexico.
The western United States is bracing for yet another powerful winter storm system, with heavy snow predicted for low elevations and blizzard conditions in the Sierra-Nevada Mountains. The Upper Midwest is also set to see heavy snowfall from a clipper system, while the Northeast is expected to experience heavy snow from a system moving through the area. Southern and interior Alaska will also face heavy snow and blizzard conditions from two powerful systems.
