Fish biologists say as many as 100,000 trout, bass and catfish have died the past month in the Sparks Marina along Interstate 80.
Nevada Department of Wildlife spokesman Chris Healy says low oxygen levels killed about 3,000 fish in one corner of the 77-acre lake in mid-December but they thought the event was localized and of limited impact.
Since then, they've been unable to detect any live fish.
Biologists say a cold-snap could have stirred up oxygen-poor waters but they don't understand yet what caused the massive die-off.
After a record dry January in much of California, early February rains helped fill reservoirs but didn't add much to the Sierra Nevada snowpack.
The Nevada state health exchange is calling this year’s open enrollment a success, with nearly twice the number of enrollees in half the amount of time as last year.
The latest U.S. Drought Monitor points to California's dwindling snowpack in its latest report.
Due to low snowpack levels in the Lake Tahoe Basin, the U.S. Forest Service is asking snowmobile users to ride in areas that have adequate snow coverage.
The warm, wet storm forecast for Northern California may not add significant snow to the Sierra Nevada snowpack due to above normal temperatures.