As spring temperatures climb across the Sierra Nevada, fire officials and climate experts are warning that a dangerously thin snowpack could set the stage for an aggressive wildfire season in El Dorado County and throughout Northern California.
The Sierra snowpack — often described as California’s natural reservoir — normally releases water gradually through late spring and summer, helping keep forests, soil and vegetation moist. This year, however, much of that snow is disappearing weeks earlier than usual after an unusually warm winter and repeated heat waves accelerated melting across the mountains.
State water officials reported California’s snowpack measured only about 66% of average in late February, and conditions worsened sharply through March and April as temperatures surged across the Sierra Nevada.
The situation is especially concerning for communities along the Highway 50 corridor and throughout El Dorado County, where dense forests and steep terrain already create elevated wildfire danger during dry summers.
At Phillips Station near South Lake Tahoe — one of California’s most watched snow survey sites located roughly 90 miles east of Sacramento in El Dorado County — state officials documented rapidly declining snow levels during April measurements.
“We’re ahead of where we were last month, but still way behind where we would hope to be,” said Andy Reising, manager of snow surveys for the California Department of Water Resources, during a February snow survey.
Scientists say the danger is not simply the lack of snow itself, but what happens after it disappears.
Without lingering mountain snowpack slowly feeding moisture into forests, grasses and brush begin drying much earlier in the season. That creates more available fuel for wildfires by the time Northern California enters peak summer heat.
A recent heat wave dubbed a “snow-eater” by meteorologists accelerated snow loss throughout the Sierra and raised fears that wildfire conditions could arrive earlier than normal in 2026.
Experts also warn that climate-driven “weather whiplash” — dramatic swings between wet storms, dry periods and extreme heat — is becoming increasingly common across California. Several storms this winter brought rain instead of snow to lower Sierra elevations, limiting snow accumulation even while reservoirs remained relatively healthy from prior wet years.
The National Integrated Drought Information System reported that dry January conditions and above-normal temperatures caused mid-winter snowmelt and “snow drought” conditions across California and Nevada earlier this year.
For El Dorado County residents still carrying memories of the Caldor Fire and other destructive wildfires, the forecast is unsettling.
Forests surrounding communities such as Pollock Pines, Camino, Kyburz and South Lake Tahoe remain heavily wooded and vulnerable during prolonged dry periods. Earlier drying can also lengthen the traditional fire season deeper into autumn.
Researchers studying wildfire trends say California’s fire season is increasingly expanding beyond historical patterns.
Despite the warnings, fire behavior later this summer will still depend heavily on spring weather, humidity levels and wind events. A cooler, wetter late spring could temporarily ease some concerns.
Still, wildfire agencies are already preparing for elevated risk.
Cal Fire officials and meteorologists across the West have warned that shrinking snowpack and warmer temperatures are likely to create drier vegetation and more combustible conditions earlier in the year.
Residents in foothill and mountain communities are being encouraged to begin defensible space work now, clear dead vegetation and prepare evacuation plans before peak fire season arrives.
