The National Weather Service has issued a Winter Weather Advisory until 10 a.m. for Martinsville and Henry County and west to Patrick County, north to Franklin County, and east to Halifax County, and south all the way to the South Carolina line.
Plan on slippery road conditions this morning. Here in Martinsville, about an inch of new snow fell overnight, and light accumulations are expected this morning.
Strong, gusty winds are expected to arrive Friday afternoon and last through Saturday night, bringing cold, windy conditions over the weekend. More freezing weather is possible next week.
Patrick & Henry Community College will be closed. Carlisle, Henry County, and Patrick County schools will have a virtual learning day today. Martinsville City schools will open two hours late. Henry County and Martinsville General District Courts are closed today, and the Horizons healthcare facilities in Martinsville, Patrick, and Franklin counties are closed. The Henry County Administration Building will open at 10 a.m. today.
NASA’s Solar Dynamics Observatory (SDO) captured this image of an X5.8 solar flare peaking at 9:23 p.m. EDT, May 10, 2024. (NASA)
(NEW YORK) — A strong geomagnetic storm could soon interact with Earth’s atmosphere, bringing the potential for northern lights displays to be seen much further south in the continental U.S., according to space weather experts.
A Coronal Mass Ejection (CME) — a massive burst of solar material and magnetic field from the sun’s outer atmosphere — that occurred on Sunday is expected to reach Earth within the next 24 hours, according to the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center and the U.K.’s Met Office.
Strong (G3) or severe (G4) geomagnetic storm conditions could occur as a result of the CME, including auroras that extend as far south as Alabama and northern California.
Northern light displays occur when a solar flare interacts with the atoms and molecules in Earth’s atmosphere.
As the solar flare clashes with the upper atmosphere, it causes the atoms to emit a glow, creating a spectrum of light in the night sky.
Whether the auroras will actually be visible will depend on how the CME arrives, the magnetic orientation of the CME’s magnetic field and how cloudy it is locally.
The best time to see the northern lights in the U.S. is generally between 10 p.m. and 4 a.m. local time, and traveling to the darkest location possible is recommended for the best viewing, according to NOAA.
The storm could also impact power systems, spacecraft operations, radio frequencies and satellite navigation.
Geomagnetic storms are ranked on a scale of 1 to 5. A G3 storm could require voltage corrections on power systems and cause intermittent satellite navigation and low-frequency radio navigation problems, according to NOAA.
Under a G4 storm, possible widespread voltage control problems and other issues on power grids could occur, as could increased satellite navigation and low-frequency radio navigation problems.
Spacecrafts could also experience surface charging and tracking problems.
The sun’s magnetic field reached its solar maximum phase of its 11-year cycle in October 2024 and has continued to emit strong solar flares and geomagnetic storms, leading to an increase in aurora displays.
Intense magnetic activity caused by sunspots are expected to last through 2026, according to NOAA.
NOAA is currently analyzing the data for the most recent CME.
