Severe ice storm hits Iowa, causing dozens of crashes, widespread travel disruptions
A severe ice storm caused dangerous travel conditions across central and eastern Iowa on December 13 and 14, 2024, leading to dozens of crashes and power outages.
First-ever Tornado Warning issued for San Francisco as strong atmospheric river hits California
San Francisco experienced its first-ever Tornado Warning on Saturday morning, December 14, 2024, issued as a powerful storm system swept through the region with heavy rain and strong winds.
Parts of New York under State of Emergency as third lake-effect snowstorm brings heavy snowfall
New York Governor Kathy Hochul declared a State of Emergency for parts of Western New York, the Finger Lakes, Central New York, and the North Country regions, as heavy lake-effect snow is expected to bring up to 90 cm (3 feet) of accumulation in the third lake-effect snowstorm of the season.
Public urged to avoid Malibu at all costs as Franklin Fire threatens thousands, California
The Franklin Fire has rapidly engulfed 1 233 ha (3 049 acres) in Malibu, California since its start late Monday night, December 9, 2024, prompting mandatory evacuations for thousands and leaving firefighters battling zero containment as of Tuesday morning, December 10, 2024. The blaze is currently threatening around 18 000 citizens along with over 8 000 structures. Authorities are urging the public to stay away from the Malibu area at all costs.
Strong East Coast atmospheric river forecast to bring heavy rain and snowmelt to Northeast
A strong atmospheric river (AR) is set to impact the Southeastern and Northeastern U.S. this week, bringing anomalously high moisture levels and the potential for heavy rainfall and rapid snowmelt. Forecasts indicate the system will strengthen between December 10 and 11, driven by a plume of tropical moisture from the Gulf of Mexico and a cold front.
Very bright fireball, sonic boom over Indiana, U.S.
A very bright fireball was observed over central Indiana at around 09:05 UTC (04:05 local time) on Tuesday, December 10, 2024. The event lasted about 3 – 5 seconds and was accompanied by a sonic boom.
Multiple atmospheric rivers set to impact U.S. West Coast this week
A series of atmospheric rivers (ARs) and mid-level shortwave troughs are forecast to deliver significant precipitation to the United States West Coast starting mid-week, potentially extending into next week. Forecasts indicate that California, Oregon, and Washington will experience varying levels of rainfall intensity, with Northern California likely at the epicenter of the heaviest activity. The first AR in the series is expected to reach California on Wednesday, December 11, 2024.
Franklin Fire forces urgent evacuations near Malibu Canyon Road, Los Angeles, California
A rapidly spreading Franklin Fire broke out on Monday night (LT), December 9, 2024, near Malibu Canyon Road, California amid a Red Flag Warning and severe Santa Ana winds, placing nearby residents on urgent mandatory evacuation.
Northeast experiences double threat of snowmelt and rainfall, heightening flood risks, U.S.
Temperatures across the Northeast are expected to reach 4 – 10 °C (40 – 50 °F), melting significant snow accumulations from last week’s lake-effect snowstorm. Rainfall totals are forecasted to reach 76 – 127 mm (3 – 5 inches) in some areas, including the I-95 corridor.
Earthquake swarm SW of Adak Islands, Alaska
An earthquake swarm has been occurring southwest of Adak Islands, Alaska, since December 8, 2024, beginning with M6.3 at a depth of 18 km (11 miles). The swarm includes multiple significant earthquakes, including two M6.3 events, an M6.1, and numerous aftershocks up to M5.8.
