Weather conditions tonight are expected to bring a mix of low clouds, persistent fog, and the potential for auroras. Street-level fog has lingered longer than usual today, with forecasts suggesting thick fog will develop overnight as temperatures dip into the upper 30s and low 40s Fahrenheit. Depending on how quickly the fog dissipates tomorrow morning, daytime temperatures may peak from the upper 40s to low 50s. In contrast, regions in the foothills could see milder temperatures in the mid-60s, while the Sierra Nevada may experience highs in the low 50s.
As residents observe the fog shrouding the valleys, a stunning view waits above the fog at Lake Tahoe, where clear skies are presenting a beautiful sunset. However, as the night progresses, clouds are forecasted to move in, diminishing visibility in the valley areas further, especially where the air has cooled and settled.
An intriguing aspect of tonight’s forecast is the occurrence of a geomagnetic storm. Due to a surge of charged particles from the sun, observers may have the chance to see the aurora borealis, which could be visible as far south as northern California. This geomagnetic storm, categorized as G4, poses risks to power grids and space operations but also offers the unique opportunity for stargazers to witness an extraordinary natural light display.
Temperatures currently sit at 45 degrees in Sacramento, 49 in Stockton, and 36 at Lake Tahoe. While many may not be able to view the aurora due to the fog in the valleys, anyone who can escape to clearer areas might capture stunning images of this rare phenomenon. Fog currently produces limited visibility across many parts, including Sacramento and Yuba City, with some regions reporting visibility of less than a quarter-mile.
Air quality is another concern as the weather pattern creates temperature inversions that can trap pollutants close to the ground, resulting in moderate particulate levels.
As we look ahead to the coming days, the forecast indicates continued fog and cloudy skies, stretching into midweek. While no rain is anticipated, there’s hope that winds may eventually disperse the fog by the weekend, leading to clearer skies. As temperatures remain steady and conditions hover around foggy, it’s wise for residents to navigate carefully while enjoying the beautiful natural phenomena that unfold above them when given the chance.