The National Weather Service in Reno has issued a Red Flag Warning for gusty winds and low humidity, which is in effect from 11 AM to 11 PM PDT Tuesday. The Fire Weather Watch is no longer in effect. * CHANGES...The Fire Weather Watch has been upgraded to a Red Flag Warning. * Affected Area...Fire Weather Zone 420 Northern Sierra Front including Carson City, Douglas, Storey, Southern Washoe, Western Lyon, and Far Southern Lassen Counties. * Winds...Southwest 15 to 25 mph with gusts of 30 to 40 mph. Ridgetop gusts of 45 to 50 mph. Winds shift to westerly in the late afternoon and evening. * Humidity...RH reductions to 10 to 15 percent in the afternoon. Nighttime recoveries of 40 to 70 percent Wednesday morning. * Duration...3 to 6 hours. * Impacts...The combination of gusty winds and low humidity can cause fire to rapidly grow in size and intensity before first responders can contain them.

* WHAT...Southwest winds 15 to 25 mph with gusts up to 35 mph. Wave heights up to 3 feet on Lake Tahoe and Pyramid Lake. * WHERE...Greater Lake Tahoe Area, Lassen-Eastern Plumas-Eastern Sierra Counties, Greater Reno-Carson City-Minden Area, and Western Nevada Basin and Range including: Lake Tahoe, Pyramid Lake, Eagle Lake, Honey Lake, Lake Davis, Frenchman Lake, Stampede Reservoir, Donner Lake, Prosser and Boca Reservoirs, Washoe Lake, and Topaz Lake. * WHEN...From 11 AM to 8 PM PDT Tuesday. * IMPACTS...Strong winds and rough waves on area lakes will create hazardous conditions for small craft.